Hanna, R.    

Firstname:R. 
Surname:Hanna 
Email:r.hanna@cgiar.org 
Institute:IITA 
Homepage:http://www.iita.org 
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289 publications (0 read)

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Publications as Author



2025

Factors influencing in vitro growth of two Cameroon isolates of Beauveria bassiana and Metarhizium anisopliae - candidates for development of mycoinsecticides against agricultural pests in Cameroon, Membang, G., Hanna, R., Mahot, H. C.*, Fotso Kuate, A., Kumar, P. L., Fiaboe, K., Masso, C. and Ambang, Z.*, in: Biocontrol Science and Technology, number -: 2520255, pages 1-21, ISSN 0958-3157, 2025. [DOI]
 
Development and evaluation of oil-based formulations of entomopathogenic fungi for control of Sahlbergella singularis (Hemiptera: Miridae), a pest of cocoa in Africa, Mahot, H. C., Hanna, R., Mahob, J. R.*, Begoude, B. A. T.*, Membang, G., Fotso Kuate, A., Fiaboe, K., Bagny-Beilhe, L. and Bilong-Bilong, C. F.*, in: Biocontrol Science and Technology, number -: 2520254, pages 1-24, ISSN 0958-3157, 2025. [DOI]
 

2024

Pheromone traps and climate variations influence populations of Sahlbergella singularis (Hemiptera: Miridae) and associated damage of cocoa in Cameroon, Mahot, H. C., Bagny-Beilhe, L., Mahob, J. R.*, Begoude, A.*, Fotso Kuate, A., Membang, G., Ewane-Nonga, N., Kemga, A., Bilong-Bilong, C. F.*, Hall, D. R., Fiaboe, K. and Hanna, R., in: Environmental Entomology, pages 1-10, ISSN 0046-225X, 2024. [DOI]
 
Potential of Cameroonian isolates of Beauveria bassiana and Metarhizium anisopliae for the biocontrol of the banana aphid, Pentalonia nigronervosa, vector of banana bunchy top virus, Enoh, A. C., Akoachere, J. F.*, Fossi, T. B.*, Membang, G., Ngatat, S., Fotso Kuate, A., Hanna, R., Kumar, P. L. and Fiaboe, K., in: PLoS ONE, volume 19, number 11: e0310746, pages 1-17, ISSN 1932-6203, 2024. [DOI]
 
New okra genotypes for the management of aphids (Hemiptera: Aphididae) in the diverse ecological landscapes of Central Africa, Abang, A., Ramasamy, S., Hanna, R., Kekeunou, S.*, Fotso Kuate, A., Tenkouano, A.++, Fiaboe, K. and Bilong-Bilong, C. F.*, in: Journal of Economic Entomology, volume 117, number 5, pages 2123-2134, ISSN 0022-0493, 2024. [DOI]
 
Distribution and diversity of emergent banana bunchy top virus infecting banana and plantain in Cameroon, Central Africa, Ngatat, S., Hanna, R., Doumtsop, A. R. P., Lienou, J., Nanga, S. N., Fotso Kuate, A., Osundahunsi, B., Fiaboe, K., Ndemba, B.*, Dossa, G. S., Alabi, T. R. and Kumar, P. L., in: Journal of Phytopathology, volume 172, number 2: e13279, pages 1-13, ISSN 0931-1785, 2024. [DOI]
 

2023

Parasitism of the whitefly Bemisia tabaci by aphelinid parasitoids on cassava across five agro-ecological zones of Cameroon, Tize, I., Nukenine, E.*, Fotso Kuate, A., Doumtsop, A. R. P., Nanga, S. N., Ajebesone, F. N.*, Kulakow, P., Kumar, P. L., Fiaboe, K. and Hanna, R., in: Crop Protection, volume 168, number -: 106241, pages 1-12, ISSN 0261-2194, 2023. [DOI]
 
Potential of Cameroon-indigenous isolates of the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae as microbial control agents of the flea beetle Nisotra uniformis, Niyibizi, I. A. B., Hanna, R., Kekeunou, S.*, Membang, G., Fiaboe, K., Mahot, H. C., Abang, A., Kumar, P. L. and Fotso Kuate, A., in: Biocontrol Science and Technology, pages 1-16, ISSN 0958-3157, 2023. [DOI]
 

2022

Plantain hybrids for the humid forest agroecology of central Africa - diseases and pests load, fruit yield and farmers perception, Lienou, J., Ngatat, S., Nanga, S. N., Doumtsop, A. R. P., Abang, A., Fotso Kuate, A., Fiaboe, K., Fonbah, C., Ajebesone, F. N.*, Njukwe, E., Tenkouano, A. and Hanna, R., in: Plant Production Science, volume 25, number 4, pages 484-500, ISSN 1343-943X, 2022. [DOI]
 
Tephritid fruit fly species composition, seasonality, and fruit infestations in two central African agro-ecological zones, Nanga, S. N., Hanna, R., Fotso Kuate, A., Fiaboe, K., Nchoutnji, I.*, Ndjab, M. R., Gnanvossou, D., Mohamed, S. A., Ekesi, S. and Djieto-Lordon, C.*, in: Insects, volume 13, number 11: 1045, pages 1-23, ISSN 2075-4450, 2022. [DOI]
 
Musa germplasm A and B genomic composition differentially affects their susceptibility to banana bunchy top virus and its aphid vector, Pentalonia nigronervosa, Ngatat, S., Hanna, R., Lienou, J., Ghogomu, R.*, Nguidang, S. P. K., Enoh, A. C., Ndemba, B.*, Korie, S., Fotso Kuate, A., Nanga, S. N., Fiaboe, K. and Kumar, P. L., in: Plants, volume 11, number 9: 1206, pages 1-18, ISSN 2223-7747, 2022. [DOI]
 

2021

New cassava germplasm for food and nutritional security in central Africa, Tize, I., Fotso Kuate, A., Nukenine, E.*, Masso, C., Ngome, F. A.*, Suh, C.*, Lendzemo, V. W.*, Nchoutnji, I.*, Manga, G. A.*, Parkes, E., Kulakow, P., Kouebou, C.*, Fiaboe, K. and Hanna, R., in: Scientific Reports, volume 11, number : 7394, pages 1-12, ISSN 2045-2322, 2021. [DOI]
 
Temperature-dependent phenology of the parasitoid Fopius arisanus on the host Bactrocera dorsalis, Nanga, S. N., Kekeunou, S.*, Fotso Kuate, A., Fiaboe, K., Dongmo, M., Tonnang, H., Gnanvossou, D., Djieto-Lordon, C.* and Hanna, R., in: Journal of Thermal Biology, volume 100, number : 103031, pages 1-11, ISSN 0306-4565, 2021. [DOI]
 
Temperature-based phenology model to predict the development, survival, and reproduction of the oriental fruit fly Bactrocera dorsalis, Dongmo, M., Fiaboe, K., Kekeunou, S.*, Nanga, S. N., Fotso Kuate, A., Tonnang, H., Gnanvossou, D. and Hanna, R., in: Journal of Thermal Biology, volume 97, number -: 102877, pages 1-12, ISSN 0306-4565, 2021. [DOI]
 
Thermal response and horizontal transmission of cameroonian isolates of the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae - candidates for microbial controls of the banana root borer Cosmopolites sordidus, Membang, G., Ambang, Z.*, Mahot, H. C., Fotso Kuate, A., Fiaboe, K. and Hanna, R., in: Fungal Ecology, volume 50, number -: 101042, pages 1-9, ISSN 1754-5048, 2021. [DOI]
 
Gender roles in sourcing and sharing of banana planting material in communities with and without banana bunchy top disease in Nigeria, Nkengla-Asi, L., Eforuoku, F., Olaosebikan, O., Ladigbolu, T. A., Amah, D., Hanna, R. and Kumar, P. L., in: Sustainability, volume 13, number 6: 3310, pages 1-14, ISSN 2071-1050, 2021. [DOI]
 
Acibenzolar-S-methyl induces resistance against cassava mosaic geminiviruses in Nicotiana benthamiana and their vector Bemisia tabaci in cassava (Manihot esculenta), Doungous, O.*, Khatabi, B., Hanna, R., Tchuanyo, M.*, Fotso Kuate, A. and Fondong, V. N., in: Crop Protection, volume 150, number -: 105796, pages 1-6, ISSN 0261-2194, 2021. [DOI]
 
Local adaptation in thermal tolerance for a tropical butterfly across ecotone and rainforest habitats, Dongmo, M., Hanna, R., Smith, T. B., Fiaboe, K., Fomena, A.* and Bonebrake, T. C.*, in: Biology Open, volume 10, number 4, pages 1-6, ISSN 2046-6390, 2021. [DOI]
 

2020

Visual cues from different trap colours affect catches of Sahlbergella singularis (Hemiptera: Miridae) in sex pheromone traps in Cameroon cocoa plantations, Mahot, H. C., Mahob, J. R.*, Hall, D. R., Alnold, S. E., Fotso Kuate, A., Membang, G., Ewane-Nonga, N., Kemga, A., Fiaboe, K., Bilong-Bilong, C. F.* and Hanna, R., in: Crop Protection, volume 127, pages 1-7, ISSN 0261-2194, 2020. [DOI]
 
Spatio-temporal partitioning and sharing of parasitoids by fall armyworm and maize stemborers in Cameroon, Abang, A., Fotso Kuate, A., Nanga, S. N., Esi, R. M. O.*, Ndemah, R., Masso, C., Fiaboe, K. and Hanna, R., in: Journal of Applied Entomology, volume 145, number 2, pages 1-10, ISSN 0931-2048, 2020. [DOI]
 
Gender norms and their implications for banana production and recovery in west Africa, Nkengla-Asi, L., Olaosebikan, O., Che, V. S., Ngatat, S., Zandjanakou-Tachin, M., Hanna, R. and Kumar, P. L., Advances in Gender Research, volume 28, pages 61-75, chapter 4, Emerald Publishing Limited, ISBN 978-1-83-867388-8, 2020. [DOI]
 
Cosmopolites sordidus (Germar) susceptibility to indigenous Cameroonian Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) isolates, Membang, G., Ambang, Z.*, Mahot, H. C., Fotso Kuate, A., Fiaboe, K. and Hanna, R., in: Journal of Applied Entomology, volume 144, number 6, pages 468-480, ISSN 0931-2048, 2020. [DOI]
 
Micropropagation and effect of phloroglucinol on rooting of Diospyros crassiflora Hiern, Tchouga, A. O., Deblauwe, V., Djabou, S. A. M.*, Forgione, G., Hanna, R. and Niemenak, N.*, in: HortScience, volume 55, number 4, pages 424-428, ISSN 0018-5345, 2020. [DOI]
 

2019

Identifying and managing plant health risks for key African crops: cassava, Toko, M., Neuenschwander, P., Yaninek, J., Ortega-Beltran, A., Fanou, A.*, Zinsou, V.*, Wydra, K., Hanna, R., Fotso Kuate, A. and Douro Kpindou, O., Burleigh Dodds series in Agricultural Science, pages 139-171, chapter 6, Burleigh Dodds Science Publishing Limited, ISBN 978-1-78-676232-0, 2019. [DOI]
 
Genome of the African cassava whitefly Bemisia tabaci and distribution and genetic diversity of cassava-colonizing whiteflies in Africa, Chen, W., Wosula, E. N., Hasegawa, D. K., Casinga, C. M., Shirima, R. R., Fiaboe, K., Hanna, R., Fotso Kuate, A., Goergen, G ., Tamo, M., Mahuku, G., Murithi, H., Tripathi, L., Mware, B., Kumar, P. L., Ntawuruhunga, P., Moyo, C., Yomeni, M. O., Boahen, S., Edet, M., Awoyale, W., Wintermantel, W. M., Ling, K., Legg, J. and Fei, Z., in: Insect Biochemistry and Molecular Biology, volume 110, pages 112-120, ISSN 0965-1748, 2019. [DOI]
 
Identifying and managing plant health risks for key African crops: fruit and other tree crops, Neuenschwander, P., Gnanvossou, D., Hauser, S., Goergen, G ., Hanna, R., Norgrove, L., Negloh, K. and Agboton, C., Burleigh Doodds Series in Agricultural Science, pages 317-342, chapter 12, Burleigh Dodds Science Publishing, ISBN 978-1-78676-232-0, 2019. [DOI]
 
Distribution and diversity of viruses infecting yams (Dioscorea spp.) in Cameroon, Azeteh, I. N., Hanna, R., Njukeng, A. P.*, Oresanya, A., Sakwe, P. N.* and Kumar, P. L., in: VirusDisease, pages 1-12, ISSN 2347-3584, 2019. [DOI]
 
Geographic distribution and abundance of the Afrotropical subterranean scale insect Stictococcus vayssierei (Hemiptera: Stictococcidae), a pest of root and tuber crops in the Congo basin, Doumtsop, A. R. P., Hanna, R., Tindo, M.*, Tata-Hangy, W., Fotso Kuate, A., Fiaboe, K., Fomena, A.*, Kemga, A. and Normark, B., in: Bulletin of Entomological Research, pages 1-9, ISSN 0007-4853, 2019. [DOI]
 
Fruit preference, parasitism, and offspring fitness of Fopius arisanus (Hymenoptera: Braconidae) exposed to Bactrocera dorsalis' (Diptera: Tephritidae) infested fruit species, Nanga, S. N., Hanna, R., Gnanvossou, D., Fotso Kuate, A., Fiaboe, K. and Djieto-Lordon, C.*, in: Environmental Entomology, pages 1-11, ISSN 0046-225X, 2019. [DOI]
 
Spodoptera frugiperda Smith (Lepidoptera: noctuidae) in Cameroon: case study on its distribution, damage, pesticide use, genetic differentiation and host plants, Fotso Kuate, A., Hanna, R., Doumtsop, A. F.*, Abang, A., Nanga, S. N., Ngatat, S., Tindo, M.*, Masso, C., Ndemah, R., Suh, C.* and Fiaboe, K., in: PLoS ONE, volume 14, number 4: e0215749, pages 1-18, ISSN 1932-6203, 2019. [DOI]
 
Efficiency of food-based attractants for monitoring tephritid fruit flies diversity and abundance in mango systems across three west African agro-ecological zones, Hanna, R., Gnanvossou, D., Goergen, G ., Bokonon-Ganta, A. H., Mohamed, S., Ekesi, S., Fiaboe, K. and Agnontcheme, A. I., in: Journal of Economic Entomology, volume 20, number 20, pages 1-12, ISSN 0022-0493, 2019. [DOI]
 

2018

Climate warming causes declines in crop yields and lowers school attendance rates in central Africa, Fuller, T. L., Clee, P. R., Njabo, K. Y., Trochez, A., Morgan, K., Mene, D. B., Anthony, N. M., Gonder, M. K., Allen, W. R., Hanna, R. and Smith, T. B., in: Science of the Total Environment, volume 610-611, pages 503-510, ISSN 0048-9697, 2018. [DOI]
 
Recovering banana production in bunchy top-affected areas in Sub-Saharan Africa: developing genderresponsive approaches, Ajambo, S., Rietveld, A., Nkengla, L. W., Niyongere, C.*, Dhed'a, D. B.*, Olaosebikan, O., Nitunga, E.*, Toengaho, J.*, Kumar, P. L., Hanna, R., Kankeu, R. S. and Omondi, A., in: Acta Horticulturae, volume 1196, pages 219-228, ISSN 0567-7572, 2018. [DOI]
 
Manual for the analysis of Fe and Zn in fresh cassava roots and products, Parkes, E., Steiner-Asiedu, M., Saalia, K., Acquatey-Mensah, A.*, Aina, O., Kulakow, P., Hanna, R., Iluebbey, P., Zhenchuk, A., Schweigert, F. J., Meyer, S., Dingelstaedt, Y., Hurtienne, A. and Kirscht, H., International Institute of Tropical Agriculture, 2018.
 
Seasonal polyphenism in Bicyclus dorothea (Lepidoptera: Nymphalidae) across different habitats in Cameroon, Dongmo, M., Bonebrake, T. C.*, Hanna, R. and Fomena, A.*, in: Environmental Entomology, volume 47, number 6, pages 1601-1608, ISSN 0046-225X, 2018. [DOI]
 
The role of abiotic factors on both mango infestation and Sternochetus mangiferae abundances in mango agroecosystems in Benin, Dassou, A. G., Gnanvossou, D., Hanna, R. and Bokonon-Ganta, A.*, in: International Journal of Tropical Insect Science, volume 38, number 3, pages 232-242, ISSN 1742-7584, 2018. [DOI]
 
AMMI analysis of cassava response to contrasting environments: case study of genotype by environment effect on pests and diseases, root yield, and carotenoids content in Cameroon, Fotso Kuate, A., Hanna, R., Kulakow, P., Parkes, E., Iluebbey, P., Ngome, F. A.*, Suh, C.*, Massussi, J.*, Choutnji, I.* and Wirnkar, V. L.*, in: Euphytica, volume 214, number -:155, pages 1-13, ISSN 0014-2336, 2018. [DOI]
 

2017

Impact of fungicide application on taro leaf blight disease in three regions of Cameroon, Manju, E. B.*, Fokunang, C. N.*, Mbong, G. A.*, Tima, T. S.*, Suh, C.*, Tembe-Fokunang, E. A.* and Hanna, R., in: Journal of Experimental Agriculture International, volume 17, number 4, pages 1-23, ISSN 2231-0606, 2017. [DOI]
 
Gender, climate change, and resilient food systems: lessons from strategic adaptation by smallholder farmers in Cameroon, Nkengla-Asi, L., Babu, S., Kirscht, H., Apfelbacher, S., Hanna, R. and Tegbaru, A., IFPRI discussion paper 01658, International Food Policy Research Institute, 2017.
 
Application of in-vitro micropropagation technique for sustainable production of four local taro cultivars [Colocasia esculenta (L.) Schott] in Cameroon, Manju, E. B.*, Mbong, G. A.*, Fokunang, C. N.*, Tembe-Fokunang, E. A.* and Hanna, R., in: African Journal of Biotechnology, volume 16, number 30, pages 1638-1645, ISSN 1684-5315, 2017. [DOI]
 
Modeling carbon stock dynamics under fallow and cocoa agroforest systems in the shifting agricultural landscape of central Cameroon, Silatsa, F. B., Yemefack, M., Ewane-Nonga, N., Kemga, A. and Hanna, R., in: Agroforestry Systems, volume 91, pages 993-1006, ISSN 0167-4366, 2017. [DOI]
 
Life history notes on Bicyclus dorothea Cramer (Nymphalidae: Satyrinae) in Cameroon, Dongmo, M., Bonebrake, T. C.*, Fomena, A.* and Hanna, R., in: Tropical Lepidoptera Research, volume 27, number 1, pages 28-32, ISSN 1941-7659, 2017.
 
Assessment of a liquid larval diet for rearing Dacus species and Bactrocera dorsalis (Diptera: Tephritidae), Anato, F. M., Bokonon-Ganta, A. H., Gnanvossou, D., Hanna, R. and Chang, C. L., in: Journal of Applied Entomology, pages 1-6, ISSN 0931-2048, 2017. [DOI]
 
Reduce pests, enhance production: benefits of intercropping at high densities for okra farmers in Cameroon, Singh, A., Weisser, W. W., Hanna, R., Houmgny, R. and Zytynska, S. E., in: Pest Management Science, pages 1-11, ISSN 1526-498X, 2017. [DOI]
 
Relative susceptibility of Musa genotypes to banana bunchy top disease in Cameroon and implication for disease management, Ngatat, S., Hanna, R., Kumar, P. L., Gray, S. M., Cilia, M., Ghogomu, R.* and Fontem, D. A.*, in: Crop Protection, volume 101, pages 166-122, ISSN 0261-2194, 2017. [DOI]
 
Innovation in agriculture reduces pressure on forests = L'innovation dans le secteur agricole reduit la pression sur les forets, Sonwa, D. and Hanna, R., pages 173-177, chapter 17, Center for Tropical Research/UCLA Institute of the Environment and Sustainability, ISBN Califonia, 2017.
 
Diversity and seasonal abundance of tephritid fruit flies in three agro-ecosystems in Benin, west Africa, Gnanvossou, D., Hanna, R., Goergen, G ., Salifu, D., Tanga, C. M., Mohamed, S. and Ekesi, S., in: Journal of Applied Entomology, pages 1-12, ISSN 0931-2048, 2017. [DOI]
 

2016

Size of predatory mites and refuge entrance determine success of biological control of the coconut mite, da Silva, F. R., De Moraes, G.*, Lesna, I., Sato, Y., Vasquez, C.*, Hanna, R., Sabelis, M. and Janssen, A., in: BioControl, pages 1-9, ISSN 1386-6141, 2016. [DOI]
 
Selection of fungal isolates for virulence against three aphid pest species of crucifers and okra, Bayissa, W.*, Ekesi, S., Mohamed, S., Kaaya, G. P.*, Wagacha, M.*, Hanna, R. and Maniania, N. K., in: Journal of Pest Science, pages 1-14, ISSN 1612-4758, 2016. [DOI]
 
Interactions among vegetable-infesting aphids, the fungal pathogen Metarhizium anisopliae (Ascomycota: Hypocreales) and the predatory coccinellid Cheilomenes lunata (Coleoptera: Coccinellidae), Bayissa, W.*, Ekesi, S., Mohamed, S., Kaaya, G. P.*, Wagacha, M.*, Hanna, R. and Maniania, N. K., in: Biocontrol Science and Technology, volume 26, number 2, pages 274-290, ISSN 0958-3157, 2016. [DOI]
 
Screen house and field resistance of Taro cultivars to Taro Leaf Blight Disease (Phytophtora colocasiae), Fokunang, C. N.*, Mbong, G. A.*, Manju, E. B.*, Tembe, E.* and Hanna, R., in: British Biotechnology Journal, volume 15, number 1, pages 1-15, ISSN 2231-2927, 2016. [DOI]
 
Relationship of phenotypic structures and allelochemical compounds of okra (Abelmoschus spp.) to resistance against Aphis gossypii Glover, Abang, A. F., Srinivasan, R., Kekeunou, S.*, Yeboah, M., Hanna, R., Lin, M. Y., Tenkouano, A.+ and Bilong-Bilong, C. F.*, in: International Journal of Pest Management, volume 62, number 1, pages 55-63, ISSN 0967-0874, 2016. [DOI]
 
Criblage de genotypes de manioc (Manihot esculenta CRANTZ) pour la resistance a la cochenille Africaine de racines et tubercules (Stictococcus vayssierei Richard) dans differentes zones agro-ecologiques de Beni (Nord Kivu, RD Congo), Ndengo, N. E.*, Munseki, L.*, Hanna, R. and Ngbolua, K.*, in: International Journal of Innovation and Applied Studies, volume 16, number 1, pages 210-225, ISSN 2028-9324, 2016.
 
The effects of extract of Azadirachta indica (Neem) oil and Imidacloprid (IRON 30SC) on the population dynamics of Brevicoryne brassicae, Lipaphis pseudobrassicae and Plutella xylostella on white cabbage, Djomaha, E. S.*, Ghogomu, R.*, Hanna, R., Ngatat, S. and Lontchi, N. F.*, in: International Journal of Agronomy and Agricultural Research (IJAAR), volume 8, number 4, pages 135-142, ISSN 2223-7054, 2016.
 
Ant attendance of the cotton aphid is beneficial for okra plants: deciphering multitrophic interactions, Singh, A., Zytynska, S. E., Hanna, R. and Weisser, W. W., in: Agricultural and Forest Entomology, volume 18, number 3, pages 270-279, ISSN 1461-9555, 2016. [DOI]
 
Release, establishment and spread of the natural enemy Fopius arisanus (Hymenoptera: Braconidae) for the control of the invasive fruit fly Bactrocera dorsalis (Diptera: Tephritidae) in Benin, west Africa, Gnanvossou, D., Hanna, R., Bokonon-Ganta, A.*, Ekesi, S. and Mohamed, S., pages 1-35, 2016.
 
Enhancing horticultural productivity, incomes and livelihoods through integrated management of aphid pests on vegetables in sub-Saharan Africa, Hanna, R., Fotso Kuate, A., Kumar, P. L., Djomaha, E. S., Toukem, N., Dongmo, M., Doumtsop, A. R. P., Ramasamy, S., Abang, A., Ekesi, S., Mohamad, S., Bayissa, W. H., Singh, A. B., Houmgny, R., Weisser, W., Keukenou, S. and Ghogomu, T. R., 2016.
 

2015

Pro-Vitamin A cassava breeding: bridging the gap through strengthening capacity of NARS partners, Parkes, E., Aina, O., Agbona, A ., Dixon, A., Iluebbey, P., Bello, A. A., Ilona, P.+, Kulakow, P., Hanna, R. and Fotso Kuate, A., Abstract of Poster Presentation at FOSAS International Symposium, 11-12 November, Yaounde, Cameroon, 2015.
 
Pro-Vitamin A cassava breeding: bridging the gap through strengthening capacity of NARS partners, Parkes, E., Aina, O., Agbona, A ., Dixon, A., Iluebbey, P., Bello, A. A., Ilona, P.+, Kulakow, P., Hanna, R. and Fotso Kuate, A., 2015.
 
Mycelia growth and sporulation of Phytophthora colocasiae isolates under selected conditions, Mbong, G. A.*, Fokunang, C. N.*, Manju, E. B.*, Njukeng, A. P.*, Tembe-Fokunang, E. A.* and Hanna, R., in: American Journal of Experimental Agriculture, volume 8, number 4, pages 193-201, ISSN 2231-0606, 2015.
 
"Cocoa farming by women: steps towards achieving social inclusion. The case of the Cameroon Cocoa-Eco project", Belibi, M. B., Koue, F. H., Van Eijnatten, J., Tah, C. K., Nonga, N. E., Hanna, R., Bakia, M., Ndongo, L. A. and Sumelong, N. H., Abstract, p. 142 in the book of abstracts of 2015 International Conference on Sustainable Development Columbia University, Alfred Lerner Hall, New York, September 23 - 24, 2015.
 
Biology, etiology, and control of virus diseases of banana and plantain, Kumar, P. L., Selvarajan, R.*, Iskra-Caruana, M. L., Chabannes, M. and Hanna, R., in: Advances in Virus Research, volume 91, pages 229-269, ISSN 0065-3527, 2015. [DOI]
 
Contribution of cocoa Producer's organisation to Cameroon economic emergence: case of KONAFCOOP and CACAO+Ayos, Belibi, M. B., Tah, C. K., Van Eijnatten, J., Ewane-Nonga, N. and Hanna, R., Abstract in Program and Book of Abstracts of the 3rd International Conference of Indonesia Forestry Researchers (INAFOR), 21-22 October, Bogor Indonesia, 2015.
 
Contribution of cocoa producer's organisation to Cameroon economic emergence: case of KONAFCOOP and CACAO+Ayos: poster presented at the 3rd International Conference of Indonesia Forestry Researchers, 21-22 October, Bogor Indonesia, Belibi, M. B., Tah, C. K., Van Eijnatten, J., Ewane-Nonga, N. and Hanna, R., Forestry Research and Development Agency (FORDA) Indonesia, 2015.
 
Abundance of whiteflies populations on some cassava cultivars in relation to soil fertilization in South Cameroon, Josiane, F. N.*, Tene, T. M., Mogo, A.*, Hanna, R. and Yemefack, M., Ministry of Scientific Research and Innovation, 2015.
 
Abondance des populations de mouches blanches sur quelques cultivars de manioc en fontion de la fertilisation du sol dans la localite de Bityili (Ebolowa-Sud Cameroun), Fomekong, N. J.*, Tene, T. M., Mogo, A.*, Hanna, R. and Yemefack, M., Ministry of Scientific Research and Innovation, 2015.
 
Enhancing agricultural integrated systems research for development with multi-stakeholder participation approach, Mathe, S., Fotso Kuate, A., Hanna, R., Idrissou, L., Bidogeza, J., Bisseleua, H. and Degrande, A., International Institute of Tropical Agriculture (IITA), 2015.
 
Ant diversity in dominant vegetation types of southern Cameroon, Fotso Kuate, A., Hanna, R., Tindo, M.*, Nanga, S. N. and Nagel, P., in: Biotropica, volume 47, number 1, pages 94-100, ISSN 0006-3606, 2015. [DOI]
 
Cassava development for the agricultural investment and markets development project, Fotso Kuate, A., Hanna, R. and Abass, A., Poster presentation on Cassava Development for the Agricultural Investment and Markets Development Project (AIMDP), 2015.
 
Which Intensification for a REDD+ strategy?: Comparative study in cocoa agroforests of Cameroon, Ewane-Nonga, N., Hanna, R., Sonwa, D., Belibi, M. B., Van Eijnatten, J., Tah, C. K., Kirscht, H. and Yemefack, M., Abstract at International Conference of Indonesia Forestry Researchers III - 2015 Forestry research for achieving self sufficient in food, energy and water, Bogor, Indonesia 21-22 October, 2015.
 
Agricultural intensification - a pathway to protect forests: the PSMNR-IITA approach in SW Cameroon, Kirscht, H., Hanna, R., Hauser, S., Chibikom, R., Lienou, J., Fotso Kuate, A. and Kleine, M.*, Abstract, p. 664 in the book of abstracts of the Tropentag 2015: management of land use systems for enhanced food security - conflicts, controversies and resolutions, in Humboldt-Universitat Berlin, Germany, September 16 - 18, 2015.
 
How plants and honeydew-producing hemipterans affect ant species richness and structure in a tropical forest zone, Fotso Kuate, A., Hanna, R., Tindo, M.*, Doumtsop, A. R. P. and Nagel, P., in: Insectes Sociaux, volume 62, number 4, pages 443-453, ISSN 0020-1812, 2015. [DOI]
 
Transport and dispersal of Stictococcus vayssierei (Hemiptera, stictococcidae) by Anoplolepis tenella (Hymenoptera, formicidae), Fotso Kuate, A., Hanna, R., Tindo, M.* and Nagel, P., in: Journal of Insect Behavior, volume 28, number 4, pages 426-435, ISSN 0892-7553, 2015. [DOI]
 
Boric acid for suppression of the ant Anoplolepis tenella and effects on an associated scale insect pest Stictococcus vayssierei in cassava fields in the Congo Basin, Hanna, R., Fotso Kuate, A., Nanga, S. N., Tindo, M.* and Nagel, P., in: Crop Protection, volume 74, pages 131-137, ISSN 0261-2194, 2015.
 

2014

Promotion of technologies for the integrated management of plantain to improve farm productivity: final report, Fotso Kuate, A., Ngatat, S., Lienou, J., Membang, G., Assiedu, E. and Hanna, R., 2014.
 
Cassava processing among small-holder farmers in Cameroon: opportunities and challenges, Njukwe, E., Onadipe, O. O., Amadou Thierno, D., Hanna, R., Kirscht, H., Maziya-Dixon, B., Araki, S., Mbairanodji, A.* and Ngue-Bissa, T.*, in: International Journal of Agricultural Policy and Research, volume 2, number 4, pages 113-124, ISSN 2350-1561, 2014.
 
Identification of okra (Abelmoschus spp.) accessions resistant to aphid (Aphis gossypii Glover) in Cameroon, Abang, A. F., Srinivasan, R., Kekeunou, S.*, Hanna, R., Chagomoka, T., Chang, J. C. and Bilong-Bilong, C. F.*, in: African Entomology, volume 22, number 2, pages 273-284, ISSN 1021-3589, 2014.
 
Assessing vegetable farmer knowledge of diseases and insect pests of vegetable and management practices under tropical conditions, Abang, A. F., Kouame, C., Abang, Mathew., Hanna, R. and Fotso Kuate, A., in: International Journal of Vegetable Science, volume 20, number 3, pages 240-253, ISSN 1931-5260, 2014. [DOI]
 
Single versus multiple enemies and the impact on biological control of spider mites in cassava fields in West-Africa, Onzo, A.*, Sabelis, M. and Hanna, R., in: Experimental and Applied Acarology, volume 62, number 3, pages 293-311, ISSN 0168-8162, 2014. [DOI]
 
The endosymbionts Wolbachia and Cardinium and their effects in three populations of the predatory mite Neoseiulus paspalivorus, Sourassou, N. F., Hanna, R., Breeuwer, J. A., Negloh, K., De Moraes, G.* and Sabelis, M., in: Experimental and Applied Acarology, volume 62, number 2, pages 207-221, ISSN 0168-8162, 2014. [DOI]
 
Mix-planting pubescent and glabrous cassava affects abundance of Typhlodromalus aripo and its prey mite Mononychellus tanajoa, Onzo, A.*, Hanna, R. and Toko, M., in: Journal of Applied Entomology, volume 138, number 4, pages 297-306, ISSN 0931-2048, 2014. [DOI]
 
Cassava value chain development through partnership and stakeholders' platform in Cameroon, Njukwe, E., Hanna, R., Sarr, S., Shigeru, A., Kirscht, H., Mbairanodji, A.*, Ngue-Bissa, T.* and Tenkouano, A.+, in: International Journal of Agricultural Policy and Research, volume 2, number 11, pages 383-392, ISSN 2350-1561, 2014. [DOI]
 

2013

Battling the Bemisia whitefly vectors of cassava virus pandemics in Africa: lessons from Thermopylae and Salamis, Legg, J., Lulah, H., Shirima, R. R., Sefera, L., Guastella, D., Simon, B., Jeremiah, S.*, Nsami, E.*, Sseruwagi, P.*, Hanna, R., Kumar, P. L., Mbewe, W.*, Chikoti, P.* and Rapisarda, C., Abstract in 1st International Whitefly Symposium, 20-24 May 2013, Kolymbari, Crete, 2013.
 
Development of biomarkers for vector competent aphid and whitefly populations in sub-Saharan Africa, Igwe, D., Ngatat, S., Cilia, M., Bereman, M., MacCoss, M., Ghanim, M., Gray, S. M., Hanna, R. and Kumar, P. L., Abstract, p. 168, in the Book of Abstracts of the 12th International Plant Virus Epidemiology Symposium, 28 January to 1 February 2013, the Ngurdoto Mountain Lodge, Arusha, Tanzania, 2013.
 
Characterization of protein biomarkers linked to transmission competent and transmission refractive aphid and whitefly populations in Nigeria, Igwe, D., Ngatat, S., Cilia, M., Bereman, M., MacCoss, M., Gray, S. M., Hanna, R. and Kumar, P. L., Abstract, 126-P in Phytopathology 103(6), (Suppl. 2): S2.65., 2013. [DOI]
 
Les fourmis envahissante du Cameroun, Tindo, M.*, Fournier, D., Foucaud, J., Mbenoun Masse, P. S.*, Fotso Kuate, A., Hanna, R., Mony, R.*, Fomena, A.* and Kenne, M.*, Abstract, p. 151 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Ex-ante economic analysis of biological control of coconut mite in Benin, Oleke, J. M., Manyong, V., Mignouna, D., Isinika, A.*, Mutabazi, K. D.*, Hanna, R. and Sabelis, M., in: AgBioForum, volume 16, number 2, pages 161-169, ISSN 1522-936X, 2013.
 
Taro leaf blight disease: solutions for West and Central Africa, Walter, N. L.*, Fornkwa, V., Gueye, B., Hanna, R., Onyeka, J.*, Abberton, M. and Asiedu, R., Abstract, p. 296 in the book of abstracts and programme of the 12th Triennial Symposium of International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 30 - 5, October, Alisa Hotel, Accra, Ghana, 2013.
 
Bactrocera Cucurbitae response to four Cymbopogon species essential oils, Bothon, F.*, Gnanvossou, D., Noudogbessi, J.*, Hanna, R. and Sohounhloue, D.*, in: Journal of Natural Products, India, volume 6, pages 147-155, ISSN 0974-5211, 2013.
 
Vegetable growers perception of pesticide use practices, cost, and health effects in the tropical region of Cameroon, Abang, A. F., Kouame, C., Abang, Mathew., Hanna, R. and Fotso Kuate, A., in: International journal of Agronomy and Plant Production, volume 4, number 5, pages 873-883, ISSN 2051-1914, 2013.
 
Comportement de varietes de manioc en diffusion et en developpement a l'infestation par la cochenille africaine des racines et tubercules Stictoccocus vayssierei Richard (Hemiptera: Coccoidea) dans le Nord Kivu, Eleko, N.*, Munseki, L.*, Hanna, R. and Mahungu, N., Abstract, p. 287 in the book of abstracts and programme of the 12th Triennial Symposium of International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 30 - 5, October, Alisa Hotel, Accra, Ghana, 2013.
 
Effects of the entomopathogenic fungus Neozygites tanajoae and the predatory mite Typhlodromalus aripo on cassava green mite densities: screenhouse experiments, Onzo, A.*, Bello, I. A.* and Hanna, R., in: BioControl, volume 58, number 3, pages 397-405, ISSN 1386-6141, 2013. [DOI]
 
Identification of promising accessions of okra (Abelmoschus spp.) resistance to the cotton aphid (Aphis gossypiiGlover) in Cameroon, Abang, A. F., Srinivasan, R., Hanna, R., Kekeunou, S.*, Chagomoka, T. and Bilong-Bilong, C. F.*, Abstract, p. 95 in Book of Abstracts of the 20th Conference of the African Association of Insect Scientists, 27-31 October, 2013.
 
Molecular-based diversity of the scale insect Stictococcus vayssierei in the Congo Basin: evidence of the existence of a species complex, Doumtsop, A. R. P., Hanna, R., Fomena, A.*, Normark, B. and Tata-Hangy, W., Abstract, p. 281 in the book of abstracts and programme of the 12th Triennial Symposium of International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 30 - 5, October, Alisa Hotel, Accra, Ghana, 2013.
 
Boric acid for the suppression of the ant, Anoplolepis tenella and impact on infestations of its tended scale insect, Stictococcus vayssierei in cassava fields, Fotso Kuate, A., Hanna, R., Nanga, S. N., Tindo, M.* and Nagel, P., Abstract, p. 282 in the book of abstracts and programme of the 12th Triennial Symposium of International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 30 - 5, October, Alisa Hotel, Accra, Ghana, 2013.
 
Farmers perception and criteria for cassava variety preference in Cameroon, Njukwe, E., Hanna, R., Kirscht, H. and Araki, S., in: African Study Monographs, volume 34, number 4, pages 221-234, ISSN 0285-1601, 2013.
 
Effect des saisons de culture sur la dynamique de la population des ravageurs et de leurs ennemis naturels sur les varietes de chou, Djomaha, E. S., Hanna, R., Ghogomu, R.* and Et Fotso, K. A.*, Abstract, p. 99 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Roosting hosts and their integration into bait application for the management of fruit flies infesting cucurbits in Benin, West Africa, Azandeme, G., Hanna, R. and Gnanvossou, D., Abstract, p. 38 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Demographic analysis of Bactrocera invadens (Diptera: tephritidae) reared at five constant temperatures, Dongmo, M., Hanna, R., Kekeunou, S.*, Kroschel, J. and Tonnang, H., Abstract, p. 146 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Effects of temperature and relative humidity on immature development and survival of Stictococcus vayssierei Richard, a pest of some tropical root and tuber crops, Doumtsop, A. R. P., Hanna, R. and Tindo, M.*, Abstract, p. 109 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Molecular-based diversity of the scale insect Stictococcus vayssierei in the Congo Basin: evidence of the existence of a species complex, Doumtsop, A. R. P., Hanna, R., Fomena, A.*, Normark, B. and Tata-Hangy, W., Abstract, p. 153 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Evaluation of boric acid for the suppression of the ant Anoplolepis tenella and impact on infestations of its tended scale insect Stictococcus vayssierei in cassava fields in Cameroon, Fotso Kuate, A., Hanna, R., Nanga, S. N., Tindo, M.* and Nagel, P., Abstract, p. 104 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Ant diversity in the humid forest zone of Cameroon: distribution of the pest ant Anaplolepis tenella Santschi (ABSTRACT), Fotso Kuate, A., Hanna, R., Nagel, P. and Tindo, M.*, Abstract, p. 130 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Release, persistence and parasitism of the parasitoid Fopius arisanus on bush mango, Irvingia gabonensis in Benin, West Africa, Gnanvossou, D., Hanna, R., Bokonon-Ganta, A.*, Mohamad, S.* and Ekesi, S., Abstract, p. 49 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Seasonal abundance and species diversity of tephritid fruit in male lure traps in Benin, West Africa, Gnanvossou, D., Hanna, R., Bokonon-Ganta, A.*, Mohamad, S.* and Ekesi, S., Abstract, p. 45 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Expansion of Banana bunchy top virus pandemic into West Africa, Kumar, P. L., Hanna, R., Owati, A., Lokossou, B.*, Adegbola, R. O., Awosusi, O.*, Onyeani, C.*, Pefoura, A.*, Atiri, G.* and Asiedu, E. A.*, Abstract, p. 113, in the Book of Abstracts of the 12th International Plant Virus Epidemiology Symposium, 28 January to 1 February, the Ngurdoto Mountain Lodge, Arusha, Tanzania, 2013.
 
Susceptibility of Musa genotypes to banana bunchy top disease in Cameroon and implications for disease management, Ngatat, S., Hanna, R. and Kumar, P. L., Abstract, p. 176, in the Book of Abstracts of the 12th International Plant Virus Epidemiology Symposium, 28 January to 1 February 2013, the Ngurdoto Mountain Lodge, Arusha, Tanzania, 2013.
 
Demographic analysis of Fopius arisanus reared at five constant temperatures, Nanga, S. N., Hanna, R., Kekeunou, S.*, Kroschel, J. and Tonnang, H., Abstract, p. 62 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Population dynamics of banana aphid, Vector of banana bunchy top virus, on four Musa genotypes with different levels of aphid susceptibility, Ngatat, S., Hanna, R., Kumar, P. L. and Fontem, D. A.*, Abstract, p. 54 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 
Virus threats to cassava and yam in sub-Saharan Africa: new insights on controlling old nemesis (ABSTRACT), Kumar, P. L., Hanna, R., Seal, S., Nkere, C., Maruthi, M. N., Kulakow, P., Lopez-Montes, A., Gueye, B., Abberton, M. and Legg, J., Abstract in papers of the International Confernece on Tropical Roots and Tubers for Sustainable Livelihood under changing agro-climate (ICTRT) 9-12 July, Hotel Mascot, Thiruvananthapuram, Kerala, 2013.
 
Females as intraguild predators of males in cross-pairing experiments with phytoseiid mites, Sourassou, N. F., Hanna, R., Negloh, K., Breeuwer, J. A. and Sabelis, M., in: Experimental and Applied Acarology, volume 61, number 2, pages 173-182, ISSN 0168-8162, 2013. [DOI]
 
Interactions between the predatory mite Typhlodromalus aripo and the entomopathogenic fungus Neozygites tanajoae and consequences for the suppression of their shared prey/host Mononychellus tanajoa, Agboton, B., Hanna, R., Onzo, A., Vidal, S. and von Tiedemann, A., in: Experimental and Applied Acarology, volume 60, number 2, pages 205-217, ISSN 0168-8162, 2013. [DOI]
 
Long term evaluation of the susceptibility of 16 Musa genotypes to banana bunchy top disease in Cameroon, Central Africa, Ngatat, S., Hanna, R., Kumar, P. L., Gray, S. M., Cilia, M. and Fontem, D. A.*, Abstract, 134-P in Phytopathology 103(6), (Suppl. 2): S2.103., 2013. [DOI]
 
Ecology of the banana aphid Pentalonia nigronervose, the vector of banana bunchy top virus, Hanna, R., Ngatat, S., Ndjab, M. R., Fotso Kuate, A., Doumtsop, A. R. P. and Kumar, P. L., Abstract, p. 45, in the Book of Abstracts of the 12th International Plant Virus Epidemiology Symposium, 28 January to 1 February 2013, the Ngurdoto Mountain Lodge, Arusha, Tanzania, 2013.
 
Species composition, seasonality, response to attractants, and fruits infestations of tephritid fruit flies in mango and guava orchards in Cameroon, Hanna, R., Fotso Kuate, A., Nanga, S. N., Ndjab, M. R., Tamedjouong, Z. T., Olina Bassala, J. P.*, Ntchoutnji, I.*, Ekesi, S. and Mohamad, S.*, Abstract, p. 52 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013.
 

2012

Development and dissemination of a manual cassava chipper in Cameroon, Njukwe, E., Duindam, J. W., Hauser, S., Maziya-Dixon, B., Amadou Thierno, D., Onadipe, O. O., Mbairanodji, A.*, Ngue-Bissa, T.*, Kirscht, H. and Hanna, R., in: Tropical Roots and Tuber Crops and the Challenges of Globalization and Climate Changes: proceedings of the 11th Triennial Symposium of the ISTRC-AB, Memling Hotel, Kinshasa, DR Congo, 4 to 8 October, 2010, pages 449-452, International Society for Tropical Root Crops (ISTRC-AB), 2012.
 
Occurrence of Banana bunchy top virus in banana and plantain (Musa sp.) in Benin, Lokossou, B.*, Gnanvossou, D., Ayodeji, O., Akplogan, F.*, Safiore, A.*, Migan, D.*, Pefoura, A.*, Hanna, R. and Kumar, P. L., in: New Disease Reports, volume 25, pages 13, ISSN 2044-0588, 2012. [DOI]
 
The importance of non-plant biodiversity for crop pest management: enabling conservation and access, Hoeschle-Zeledon, I., Halewood, M., Beed, F., Coyne, D., Tamo, M., Neuenschwander, P. and Hanna, R., 2012.
 
Potentialites de l'acarien predateur Amblyseius swirskii (Athias-Henriot) (Acari: Phytoseiidae) dans la lutte biologique contre la mouche blanche Bemisia tabaci (Genn.), vecteur de la mosaique du manioc en Afrique, Onzo, A.*, Zannou, I., Adjibade, O.A.*, Broutani, S.* and Hanna, R., in: International Journal of Biological and Chemical Sciences, volume 6, number 6, pages 5085-5102, ISSN 1991-8631, 2012.
 
Improving food security and income and enhancing farmers' livelihoods in Cameroon through the introduction and promotion of improved cassava germplasm, Njukwe, E., Nguenkam, A., Mbairanodji, A.*, Ngue-Bissa, T.* and Hanna, R., in: Tropical Roots and Tuber Crops and the Challenges of Globalization and Climate Changes. Proceedings of the 11th triennial Symposium of the ISTRC-AB, 4 to 8 October 2010, pages 289-295, ISTRC-AB, Ibadan, Nigeria, 2012.
 
Cassava processing among small-holder farmers in Cameroon: Opportunities and Challenges. Proceedings of the 2nd Scientific Conference of the Global Cassava Partnership for the 21st Century (GCP21), Njukwe, E., Onadipe, O. O., Amadou Thierno, D., Hanna, R., Kirscht, H., Maziya-Dixon, B., Shigeru, A., Mbairanodji, A.* and Ngue-Bissa, T.*, Abstract (Poster Presentation) in Book of Abstracts of 2nd Scientific Conference of the Global Cassava Partnership for the 21st Century (GCP21-II) Kampala, Uganda. June 18-22, 2012.
 
Farmers' perception of coconut mite damage and crop diversification alternatives in the coastal belt of Tanzania, Oleke, J. M., Isinika, A.*, Manyong, V., Hanna, R. and Sabelis, M., in: International Journal of Acarology, volume 38, number 6, pages 471-479, ISSN 0164-7954, 2012. [DOI]
 
Scale insects on yams in Benin: diversity, incidence and farmers' knowledge and perceptions, Goergen, G ., Dossou, R.*, Asiedu, R. and Hanna, R., in: Tropical Roots and Tuber Crops and the Challenges of Globalization and Climate Changes. Proceedings of the 11th triennial Symposium of the ISTRC-AB, 4 to 8 October 2010, pages 411-413, ISTRC-AB, Ibadan, Nigeria, 2012.
 
Risk assessment and modelling: IITA, Tamo, M., Beed, F., Goergen, G ., Hanna, R., Coyne, D., Van Asten, P. and Legg, J., Abstract, p. 33 in Program Book of Abstracts, Scientific Review and Planning Workshop: "Modelling climate impacts on pests and diseases", 10-14 December 2012 Lima, Peru, 2012.
 
Potential of the predatory mite, Amblyseius swirskii to suppress the broad mite, Polyphagotarsonemus latus on the gboma eggplant, Solanum macrocarpon, Onzo, A.*, Houedokoho, A.* and Hanna, R., in: Journal of Insect Science, volume 12, number 7, pages 1-11, ISSN 1536-2442, 2012.
 
Cassava value chain development through partnership and stakeholders' platform in Cameroon, Njukwe, E., Hanna, R., Kirscht, H., Shigeru, A., Mbairanodji, A.* and Ngue-Bissa, T.*, Abstract (Oral Presentation) in Book of Abstracts, 16th Triennial Symposium of the International Society for Tropical Root Crops (ISTRC-AB), 23 - 28th September, 2012.
 
Morphological, molecular and cross-breeding analysis of geographic populations of coconut-mite associated predatory mites identified as Neoseiulus baraki: evidence for cryptic species?, Sourassou, N. F., Hanna, R., Zannou, I., Breeuwer, J. A., De Moraes, G.* and Sabelis, M., in: Experimental and Applied Acarology, volume 57, number 1, pages 15-36, ISSN 0168-8162, 2012. [DOI]
 
The predatory mite Typhlodromalus aripo prefers green-mite induced plant odours from pubescent cassava varieties, Onzo, A., Hanna, R. and Sabelis, M., in: Experimental and Applied Acarology, volume 58, number 4, pages 359-370, ISSN 0168-8162, 2012. [DOI]
 
Intraguild predation and cannibalism between the predatory mites Neoseiulus neobaraki and N. paspalivorus, natural enemies of the coconut mite Aceria guerreronis, Negloh, K., Hanna, R. and Schausberger, P., in: Experimental and Applied Acarology, volume 58, number 3, pages 235-246, ISSN 0168-8162, 2012. [DOI]
 
Towards the development of sustainable control options for the African root and tuber scale on cassava in Central Africa understanding the ecology of the associated ant Anoplolepis tenella, Fotso Kuate, A., Hanna, R., Tindo, M.* and Nagel, P., in: Tropical Roots and Tuber Crops and the Challenges of Globalization and Climate Changes. Proceedings of the 11th triennial Symposium of the ISTRC-AB, 4 to 8 October 2010, pages 418-422, ISTRC-AB, Ibadan, Nigeria, 2012.
 
New cassava varieties for Cameroon: a technical guide, Hanna, R., Njukwe, E., Amah, D., Tenkouano, A., Dixon, A., Nguekam, A., Doumtsop, A. R. P. and Ngoko, Z., 2012.
 

2011

Clarifying the identity of Amblyseius swirskii and Amblyseius rykei (Acari: phytoseiidae): are they two distinct species or two populations of one species?, Zannou, I. and Hanna, R., in: Experimental and Applied Acarology, volume 53, number 4, pages 339-347, ISSN 0168-8162, 2011. [DOI]
 
Molecular detection of establishment and geographical distribution of Brazilian isolates of Neozygites tanajoae, a fungus pathogenic to cassava green mite, in Benin (West Africa), Agboton, B., Hanna, R. and von Tiedemann, A., in: Experimental and Applied Acarology, volume 53, number 3, pages 235-244, ISSN 0168-8162, 2011. [DOI]
 
Morphological variation and reproductive incompatibility of three coconut-mite-associated populations of predatory mites identified as Neoseiulus paspalivorus ( Acari: Phytoseiidae), Sourassou, N. F., Hanna, R., Zannou, I., De Moraes, G.*, Negloh, K. and Sabelis, M., in: Experimental and Applied Acarology, volume 53, number 4, pages 323-338, ISSN 0168-8162, 2011. [DOI]
 
The coconut mite, Aceria guerreronis, in Benin and Tanzania: occurrence, damage and associated acarine fauna, Negloh, K., Hanna, R. and Schausberger, P., in: Experimental and Applied Acarology, volume 55, number 4, pages 361-374, ISSN 0168-8162, 2011.
 
Banana bunchy top virus in sub-Saharan Africa: investigations on virus distribution and diversity, Kumar, P. L., Hanna, R., Alabi, O., Soko, M.*, Oben, T., Vangu, G.* and Naidu, R., in: Virus Research, volume 159, number 2, pages 171-182, ISSN 0168-1702, 2011. [DOI]
 

2010

Development and dissemination of a manual cassava chipper in Cameroon, Njukwe, E., Duindam, J. W., Hauser, S., Maziya-Dixon, B., Amadou Thierno, D., Mbairanodji, A.*, Ngue-Bissa, T.* and Hanna, R., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Boilable cassava varieties: what is their role within the context of the global agricultural economy?, Ngeve, J., Tenku, S. N., Dixon, A.*, Whyte, J., Okechukwu, R., Hanna, R. and Akoroda, M. O.*, in: African Journal of Root and Tuber Crops, volume 8, number 2, pages 18-22, ISSN 1118-2075, 2010.
 
Improving food security and income and enhancing farmers? livelihoods in Cameroon through the introduction and promotion of improved cassava germplasm, Njukwe, E., Nguenkam, A., Mbairanodji, A.*, Ngue-Bissa, T.* and Hanna, R., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Developing cassava cultivars based on farmers' needs and on the agro-ecological conditions of north-western Cameroon, Zundel, C., Chibikom, R.*, Scheidegger, U., Nagel, P. and Hanna, R., in: African Journal of Root and Tuber Crops, volume 8, number 2, pages 23-33, ISSN 1118-2075, 2010.
 
Diet-dependent life history, feeding preference and thermal requirements of the predatory mite Neoseiulus baraki (Acari: Phytoseiidae), Domingos, C. A.*, Melo, J.*, Gondim, M.*, De Moraes, G.*, Hanna, R., Lawson-Balagbo, L. M. and Schausberger, P., in: Experimental and Applied Acarology, volume 50, number 3, pages 201-215, ISSN 0168-8162, 2010. [DOI]
 
Scale insects on yams in Benin: diversity, infestation levels and farmers' knowledge and perceptions, Goergen, G ., Dossou, R.*, Asiedu, R. and Hanna, R., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
The search for natural enemies of the coconut mite (Aceria guerreronis Keifer) in Latin America, da Silva, F. R., De Moraes, G.*, Sabelis, M., Hanna, R., Estrada-Venegas, E. G., Mesa, N. and Vasquez, C.*, Abstract in Book of Abstracts-13th International Congress of Acarology, Recife, Brazil, 23-27 August 2010, 2010.
 
The incidence of the cassava mosaic disease in relation with the source of planting materials and its impact on cassava production, Tata-Hangy, K.*, Legg, J., Lema, K., Hanna, R. and Luyindula, N.*, in: Root and tuber crops for poverty alleviation through science and technology for sustainable development: proceedings of the 10th Symposium of ISTRC-AB held from 8-12 October, 2007 in Maputo, Mozambique, pages 371-379, ISTRC-AB, 2010.
 
Effect of host rearing diet on fitness parameters of Fopius arisanus (Sonona) (Braconidae: Hymenoptera), Mohamed, S., Ekesi, S. and Hanna, R., in: Book of abstracts, 8th International Symposium of Fruit Flies of Economic Importance, Valencia, Spain, 26 September - 1October 2010, pages 113, Editorial Universitat Politecnica de Valencia, 2010.
 
Stakeholders analysis of coconut production and perception on coconut mite damage and other coconut constraints in Tanzania, Oleke, J. M., Manyong, V., Hanna, R. and Isinika, A. C., Abstract (Poster) in Book of Abstracts-13th International Congress of Acarology, Recife, Brazil, 23-27 August 2010, 2010.
 
Mite diversity in coconut habitat in West and East Africa, Zannou, I., Negloh, K., Hanna, R., Houadakpode, S. and Sabelis, M., Abstract in Book of Abstracts 13th International Congress of Acarology, Recife, Brazil, 23-27 August 2010, 2010.
 
Old and new host-parasitoid associations: parasitism of the invasive fruit fly Bactrocera invadens (Diptera: Tephritidae) and five African fruit fly species by Fopius arisanus, an Asian opiine parasitoid, Mohamed, S., Ekesi, S. and Hanna, R., in: Biocontrol Science and Technology, volume 20, number 2, pages 183-196, ISSN 0958-3157, 2010.
 
Effects of ultraviolet radiation on predatory mites and the role of refuges in plant structures, Onzo, A., Sabelis, M. and Hanna, R., in: Environmental Entomology, volume 39, number 2, pages 695-701, ISSN 0046-225X, 2010.
 
Rid fruits and vegetables in Africa of notorious fruit flies, Ekesi, S., Mohamed, S. and Hanna, R., CGIAR SP-IPM Technical Innovation Brief No. 4, 2010. 2p., 2010.
 
Status of Bactrocera invadens management in Africa: recent advances, successes and challenges, Ekesi, S., Vayssieres, J., Hanna, R., de Meyer, M., Goergen, G . and Malachrida, A., in: Book of abstracts, 8th International Symposium of Fruit Flies of Economic Importance, Valencia, Spain, 26 September - 1 October 2010, pages 96, Editorial Universitat Politècnica de València, 2010.
 
Season- and fruit age-dependent population dynamics of Aceria guerreronis and its associated predatory mite Neoseiulus paspalivorus on coconut in Benin, Negloh, K., Hanna, R. and Schausberger, P., in: Biological Control, volume 54, number 3, pages 349-358, ISSN 1049-9644, 2010. [DOI]
 
Season - and fruit age-dependent population dynamics of Aceria guerreronis and its associated predatory mite Neoseiulus paspalivorus on coconut in Benin, Negloh, K., Hanna, R. and Schausberger, P., Abstract (Poster) in Book of Abstracts, 13th International Congress of Acarology, Recife, Brazil, 23-27 August, 2010.
 
Comparative biology of Neoseiulus baraki and Neoseiulus paspalivorus: interspecific interactions and predation efficiency, Negloh, K., Hanna, R., Schausberger, P. and Sabelis, M., Abstract (Poster) in Book of Abstracts, 13th International Congress of Acarology, Recife, Brazil, 23-27 August, 2010.
 
Management strategy for sprialling whitefly in Tanzania, Pallangyo, B.*, Hanna, R., Nsami, E.*, Mfugale, O., Bokonon-Ganta, A. H., Gnanvossou, D. and Ajuonu, O., Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Multiple predators, intraguild interactions and biological control of a single spider mite species, Sabelis, M., Hanna, R., Onzo, A., Pallini, A., Cakmak, I.* and Janssen, A., Abstract in Book of Abstracts, 13th International Congress of Acarology, Recife, Brazil, 23-27 August, 2010.
 
Effects of extrafoliar exudates and cyanogenic potential of three cassava cultivars on life history parameters of Thyphlodromalus aripo, a predator of cassava green mite, Sourassou, N. F. and Hanna, R., Abstract (Poster) in Book of Abstracts, 13th International Congress of Acarology, Recife, Brazil, 23-27 August, 2010.
 
Morphological variation and reproductive incompatibility among geographic populations of two phytoseiid mite species associated with the coconut mite in Africa and Brazil, Sourassou, N. F., Hanna, R., Zannou, I., De Moraes, G.*, Negloh, K. and Sabelis, M., Abstract in Book of Abstracts, 13th International Congress of Acarology, Recife, Brazil, 23-27 August, 2010.
 
Clarifying the identity of Amblyseius swirskii and Amblyseius rykei (Acari: Phytoseiidae): are they two distinct species or two populations of one species, Zannou, I., Hanna, R., De Moraes, G.* and Onzo, A., Abstract (Poster) in Book of Abstracts, 13th International Congress of Acarology, Recife, Brazil, 23-27 August, 2010.
 
Diversité des fourmis dans la zone forestiere du sud Cameroun, Fotso Kuate, A., Hanna, R., Nagel, P., Tindo, M. and Goergen, G ., Abstract presented at the 7th Conférence Internationale Francophone d'entomologie, Louvain-la-Neuve, Belgique, 5-10 Juillet, Université Catholique de Louvain, Belgique, 2010.
 
Banana bunchy top disease: IITA-FAO Regional Surveillance Workshop, Kumar, P. L., Hanna, R. and Beed, F., 2010.
 
Controlling the banana bunchy top disease pandemic in sub-Saharan Africa, Kumar, P. L., Hanna, R., Fotso, A., Soko, M.*, Akinbade, S., Alabi, O., Ngeve, J. and Naidu, R., Abstract presented at PVEN-IPVEN Symposium, Plant viruses: exploiting agricultural and natural ecosystems, June 20-24, Cornell, Ithaca, New York, 2010.
 
Biological control of the banana aphid for sustainable management of banana bunchy top disease in sub-Saharan Africa. IITA-USAID Linkage Program Final Technical Report; IITA project report, Messing, R., Hanna, R. and Kumar, P. L., 2010.
 
Interactions between cassava green mite biocontrol and cassava mosaic disease management, Toko, M., Hanna, R., Legg, J., Kalyebi, A., Ogwang, J.* and Otema, M, Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
First report of the East African cassava mosaic virus-Uganda (EACMV-UG) infecting cassava (Manihot esculenta) in Cameroon, Akinbade, S., Hanna, R., Nguenkam, A., Njukwe, E., Fotso, A., Doumtsop, A. R. P., Ngeve, J., Tenku, S. T. N.* and Kumar, P. L., Abstract in New Disease Reports, 2010. [DOI]
 
Un schéma de distribution de boutures de nouvelles variétés améliorées de manioc au Bénin: une expérimentation conjointe de la recherche et de la vulgarisation pour une diffusion rapide de nouvelles variétés au profit des agriculteurs, Dossou, R.*, Hanna, R., Onzo, A. and Amadji, F.*, Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Evaluation participative des performances agronomiques, culinaires et technologiques de quelques variétés améliorées de manioc en milieu paysan au nord et au centre du Bénin, Dossou, R.*, Hanna, R., Onzo, A., Padonou, S. W.* and Amadji, F.*, Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
De nouvelles variétés performantes de manioc pour le Bénin, Dossou, R.*, Hanna, R. and Onzo, A., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Diversity of the African root and tuber scale Stictococcus vayssierei in Central Africa, Doumtsop, A. R. P., Hanna, R., Normark, B. and Korie, S., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Towards the development of sustainable control options for the African root and tuber scale on cassava in Central Africa ? understanding the ecology of the associated ant Anoplolepis tenella, Fotso Kuate, A., Hanna, R., Nagel, P. and Tindo, M., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Diversity of the African root and tuber scale (Stictococcus vayssierei) in Central Africa, Hanna, R., Doumtsop, A. R. P. and Normark, B., Poster presented at the Annual Meeting of the Entomological Society of America, San Diego, California, 12-16 December, 2010.
 
Suitability and attraction of cassava genotypes to the predatory mite Typhlodromalus aripo, Hanna, R., Onzo, A., Sabelis, M., Zundel, C. and Dixon, A.*, Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Fruit flies species composition and seasonality, and relative efficiency of four female attractants in mango orchards in Benin, Hanna, R., Gnanvossou, D., Bokonon-Ganta, A. H. and Ekesi, S., in: 8th International Symposium of Fruit Flies of Economic Importance, Valencia, Spain, 26 September - 1 October 2010, pages 285, Editorial Universitat Politècnica de València, 2010.
 
Identification of roosting hosts and their integration into bait applications for the management of cucurbit flies in West Africa, Hanna, R., Azandeme, G. and Gnanvossou, D., in: 8th International Symposium of Fruit Flies of Economic Importance, Valencia, Spain, 26 September - 1 October 2010, pages 122, Editorial Universitat Politècnica de València, 2010.
 
Effect of relative humidity and temperature on pupal survival of tephritid fruit flies and relevance to predicting their geographic distribution, Hanna, R., Winslow, M. D. and Gnanvossou, D., Oral presentation at the Annual Meeting of the Entomological Society of America, San Diego, California, 12-16 December, 2010.
 

2009

Role of infochemicals in the interaction between cassava green mites and its fungal pathogen Neozygites tanajoae, Hountondji, F., Sabelis, M. and Hanna, R., in: Trends in Acarology: proceedings of the 12th International Congress of Acarology, pages 249-253, Springer, 2009.
 
Molecular detection and differentiation of Brazilian and African isolates of the entomopathogen Neozygites tanajoae (Entomophthorales: Neozygitaceae) with PCR using specific primers, Agboton, B., Junior, I. D., Hanna, R. and von Tiedemann, A., in: Biocontrol Science and Technology, volume 19, number 1, pages 67-79, ISSN 0958-3157, 2009.
 
Environment and host-plant genotype effects on the seasonal dynamics of a predatory mite on cassava in sub-humid tropical Africa, Zundel, C., Nagel, P., Hanna, R., Korner, F. and Scheidegger, U., in: Agricultural and Forest Entomology, volume 11, number 3, pages 321-331, ISSN 1461-9555, 2009. [DOI]
 
Coat protein-based genealogy of banana bunchy top virus in the sub-Saharan Africa, Kumar, P. L., Alabi, O., Hanna, R. and Naidu, R., 2009.
 
Multiple predators, intraguild interactions and biological control of a single spider mite species, Sabelis, M., Hanna, R., Onzo, A., Pallini, A., Cakmak, I.* and Janssen, A., in: IOBC-WPRS Bulletin, volume 50, pages 83-94, ISSN 1027-3115, 2009.
 
Occurrence of banana bunchy top disease caused by the banana bunchy top virus on banana and plantain (Musa sp.) in Cameroon, Oben, T., Hanna, R., Ngeve, J., Alabi, O., Naidu, R. and Kumar, P. L., in: Plant Disease, volume 93, number 10, pages 1076, ISSN 0191-2917, 2009. [DOI]
 
Host plants of Stictococcus vayssierei Richard (Stictococcidae) in non-crop vegetation in the Congo Basin and implications for developing scale management options, Tindo, M., Hanna, R., Goergen, G ., Zapfack, L.*, Tata-Hangy, K.* and Attey, A., in: International Journal of Pest Management, volume 55, number 4, pages 339-345, ISSN 0967-0874, 2009. [DOI]
 
Within-plant migration of the predatory mite Typhlodromalus aripo from the apex to the leaves of cassava: response to day-night cycle, prey location and prey density, Onzo, A., Hanna, R. and Sabelis, M., in: Journal of Insect Behavior, volume 22, number 3, pages 186-195, ISSN 0892-7553, 2009.
 
Tackling the banana menace, Kumar, P. L. and Hanna, R., in: R4D Review, volume 2, pages 11-13, ISSN 2071-3681, 2009.
 
Pathogenicity and host specificity of Brazilian and African isolates of the acaropathogenic fungus Neozygites tanajoae to mite species associated with cassava, Agboton, B., Hanna, R., Hountondji, F. and von Tiedemann, A., in: Journal of Applied Entomology, volume 155, number 9-10, pages 651-658, ISSN 0931-2048, 2009. [DOI]
 
BBTV in sub-Saharan Africa: status and needs, Kumar, P. L., Hanna, R., Mwemenamda, B., Beed, F., Lorenzen, J., Fiaboe, K., Van Asten, P., Hauser, S., Akinbade, S., Oben, T., Soko, M.*, Londa, R.*, Ngeve, J., Mutunda, M. P.*, Kiala, D.* and Naidu, R., 2009.
 
Biological control of the banana aphid, Hanna, R., Messing, R. and Kumar, P. L., 2009.
 
Biological control at IITA - past, present, and future, Hanna, R., in: R4D Review, volume 3, pages 12-16, ISSN 2071-3681, 2009.
 
Citrus infestations by tephritid fruit flies in sub-Saharan Africa: first results from Benin show substantial infestations largely by the Sri Lanka fruit fly Bactrocera invadens, Hanna, R. and Gnanvossou, D., Information Letter no.2, 2009. p3: Fighting fruit flies regionally in sub-Saharan Africa, 2009.
 

2008

Phytoseiid mites of the tribe Paraseiulini Wainstein (Acari: Phytoseiidae) from sub-Saharan Africa, De Moraes, G.*, Zannou, I., Ueckermann, E.*, Oliveira, A.*, Hanna, R. and Yaninek, J., in: Zootaxa, volume 1687, pages 1-34, ISSN 1175-5326, 2008.
 
Phytoseiid mites of the tribe Typhlodromini (Acari: Phytoseiidae) from sub-Saharan Africa, Ueckermann, E.*, Zannou, I., De Moraes, G.*, Oliveira, A.*, Hanna, R. and Yaninek, J., Magnolia Press, ISBN 978-1-86977-285-7, 2008.
 
Exploration of the acarine fauna on coconut palm in Brazil with emphasis on Aceria guerreronis (Acari: Eriophyidae) and its natural enemies, Lawson-Balagbo, L. M., Gondim, M.*, De Moraes, G.*, Hanna, R. and Schausberger, P., in: Bulletin of Entomological Research, volume 98, pages 83-96, ISSN 0007-4853, 2008. [DOI]
 
Cassava improvement in sub-Saharan Africa: contributions of IITA and its partners, Dixon, A., Okechukwu, R., Ssemakula, G., Hanna, R., Thresh, J. M., Hughes, J., Ingelbrecht, I., Fregene, M.*, Legg, J., Mahungu, N., Nweke, F., Ntawuruhunga, P., Fauquet, C., Manyong, V., Neuenschwander, P., Whyte, J., Wydra, K., Asiedu, R., Egesi, C. N.*, Bandyopadhyay, R., Winter, S., Tarawali, G., Bokanga, M., Ezedinma, C., Sanni, L., Ferguson, M., Ogbe, F., Akoroda, M., Maziya-Dixon, B., Ilona, P., Ekanayake, I. J., Ariyo, O., Onyeka, J.*, Otim-Nape, G.*, Dahniya, M. T., Ortiz, R., Hahn, S. K. and Hartmann, P., 2008.
 
Compatibility of Neoseiulus paspalivorus and Proctolaelaps bickleyi, candidate biocontrol agents of the coconut mite Aceria guerreronis: spatial niche use and intraguild predation, Lawson-Balagbo, L. M., Gondim, M.*, De Moraes, G.*, Hanna, R. and Schausberger, P., in: Experimental and Applied Acarology, volume 45, number 1-2, pages 1-13, ISSN 0168-8162, 2008. [DOI]
 
Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil, Reis, A.C., Gondim, M.*, De Moraes, G.*, Hanna, R., Schausberger, P., Lawson-Balagbo, L. M. and Barro, S., in: Neotropical Entomology, volume 37, number 4, pages 457-462, ISSN 1519-566X, 2008.
 
Foraging activity and diet of the ant, Anoplolepis tenella Santschi (Hymenoptera: Formicidae), in southern Cameroon, Fotso Kuate, A., Tindo, M., Hanna, R., Kenne, M.* and Goergen, G ., in: African Entomology, volume 16, number 1, pages 107-114, ISSN 1021-3589, 2008.
 
Evaluation of the impact of Diachasmimorpha longicaudata on Bactrocera invadens and five African fruit fly species, Mohamed, S., Ekesi, S. and Hanna, R., in: Journal of Applied Entomology, volume 132, number 9-10, pages 789-797, ISSN 0931-2048, 2008. [DOI]
 
Tackling BBTV threat to banana and plantain in sub-Saharan Africa, Kumar, P. L., Hanna, R., Beed, F., Mwenebanda, B. M. L., Fiaboe, K., Van Asten, P. and Hauser, S., Poster presentation, 2008.
 
Inventaire et importance des degats des mouche des fruits sur quelques especes de cucurbitacees au Benin, Gnanvossou, D., Hanna, R., Azandeme, G., Goergen, G ., Tindo, M. and Agbaka, A.*, in: Actes de l'atelier Scientifique National 6, 19-22 December 2006, Abomey-Calavi, Benin, pages 140-145, Bibliotheque Nationale du Benin, 2008.
 
Comparative demography and diet breadth of Brazilian and African populations of the predatory mite Neoseiulus baraki, a candidate for biological control of coconut mite, Negloh, K., Hanna, R. and Schausberger, P., in: Biological Control, volume 46, number 3, pages 523-531, ISSN 1049-9644, 2008. [DOI]
 
Within-plant migration of the predatory mite Typhlodromalus aripo from the apex to the leaves of cassava: response to day-night cycle, prey location and prey density, Onzo, A., Hanna, R. and Sabelis, M., in: Journal of Insect Behaviour, ISSN 1572-8889, 2008. [DOI]
 
Inventaire et importance des dégâts des mouches des fruits sur quelques variétés d’agrumes au Bénin, Hanna, R., Agnontcheme, D., Gnanvossou, D., Goergen, G . and Agbaka, A.*, in: Actes de l'atelier Scientifique National 6, 19-22 December 2006, Abomey-Calavi, Benin, pages 128-139, Bibliotheque Nationale du Benin, 2008.
 
Lachers de Fopius arisanus pour un controle efficace et durable des mouches des fruits en Afrique=Release of Fopius arisanus for efficient and sustainable control of fruit flies in Africa, Hanna, R., Bokonon-Ganta, A. H., Gnanvossou, D. and Saizonou, S.*, Lettre d'information no.6, 2008. 1-4: La lutte regionale contre les mouches des fruits et legumes en Afrique de l'Ouest, 2008.
 
Technique d'annihilation des males pour la suppression de B. invadens au Benin=Male annihilation for the control of Bactrocera invadens and Ceratitis cosyra in mango orchards, Hanna, R., Gnanvossou, D. and Grout, T.*, Lettre d'information. no.7, 2008. 1-4: La lutte regionale contre les mouches des fruits et legumes en Afrique de l'Ouest=Fighting fruit flies regionally in sub-Saharan Africa, 2008.
 

2007

Phytoseiid mites of the tribes Afroseiulini, Kampimodromini and Phytoseiulini, and complementary notes on mites of the tribes Euseiini and Neoseiulini (Acari: Phytoseiidae) from sub-Saharan Africa, De Moraes, G.*, Zannou, I., Ueckermann, E.*, Oliveira, A.*, Yaninek, J. and Hanna, R., in: Zootaxa, volume 1628, number 1, pages 1-22, ISSN 1175-5326, 2007.
 
Phytoseiid mites of the subtribe Amblyseiina (Acari: Phytoseiidae: Amblyseiini) from sub-Saharan Africa, Zannou, I., De Moraes, G.*, Ueckermann, E.*, Oliveira, A.*, Yaninek, J. and Hanna, R., in: Zootaxa, volume 1550, pages 1-47, 2007.
 
Phytoseiid mites of the subfamily Phytoseiinae (Acari: Phytoseiidae) from sub-Saharan Africa, Ueckermann, E.*, Zannou, I., De Moraes, G.*, Oliveira, A.*, Hanna, R. and Yaninek, J., in: Zootaxa, volume 1658, pages 1-20, 2007.
 
Species of the subtribes Arrenoseiina and Proprioseiopsina (Tribe Amblyseiini) and the tribe Typhloromipsini (Acari: Phytoseiidae) from sub-Saharan Africa, De Moraes, G.*, Zannou, I., Ueckermann, E.*, Oliveira, A.*, Hanna, R. and Yaninek, J., in: Zootaxa, volume 1448, pages 1-39, 2007.
 
Life history of the predatory mites Neoseiulus paspalivorus and Proctolaelaps bickleyi, candidates for biological control of Aceria guerreronis, Lawson-Balagbo, L. M., Gondim, M.*, De Moraes, G.*, Hanna, R. and Schausberger, P., in: Experimental and Applied Acarology, volume 43, pages 49-61, 2007.
 
Food-type effects on life history of the predatory mites Neoseiulus paspalivorus and Proctolaelaps bickleyi, candidates for biological control of the coconut mite, Lawson-Balagbo, L. M., Gondim, M.*, De Moraes, G.*, Hanna, R. and Schausberger, P., in: Experimental and Applied Acarology, volume 43, pages 49-61, 2007.
 
Refuge use by the coconut mite Aceria guerreronis: fine scale distribution and association with other mites under the perianth, Lawson-Balagbo, L. M., Gondim, M.*, De Moraes, G.*, Hanna, R. and Schausberger, P., in: Biological Control, volume 43, pages 102-110, 2007.
 
Mite pests of major importance on indigenous leafy vegetables in Benin: the search for appropriate control strategies, Adango, E., Onzo, A., Hanna, R., Atachi, P.* and James, B., in: Acta Horticulturae, volume 752, pages 311-318, 2007.
 
Incidence and distribution of cassava diseases and pests in the Democratic Republic of Congo, Tata-Hangy, K.*, Legg, J., Hanna, R., Toko, M., Lema, K., Dixon, A. and Mahungu, N., in: Proceedings of the 9th ISTRC-AB Symposium, pages 614-622, Mombasa, Kenya, 2007.
 
Scaling up tests on virulence of the cassava green mite fungal pathogen Neozygites tanajoae (Entomophthorales: Neozygitaceae) under controlled conditions: First observations at the population-level, Hountondji, F., Hanna, R., Sabelis, M., Agboton, B. and Korie, S., in: Experimental and Applied Acarology, volume 41, pages 153-168, 2007.
 
Living at the threshold: where does the neotropical phytoseiid mites Typhlodromalus aripo survive the dry season?, Zundel, C., Hanna, R., Scheidegger, U. and Nagel, P., in: Experimental and Applied Acarology, volume 41, pages 11-26, 2007.
 
Native phytoseiid mites as indicators of non-target effects of the introduction of Typhlodromalus aripo for the biological control of cassava green mite in Africa, Zannou, I., Hanna, R., Agboton, B., De Moraes, G.*, Kreiter, S., Phiri, G. and Jone, A., in: Biological Control, volume 41, pages 190-198, 2007.
 
Distribution and abundance of cassava pests in Tanzania with a note on the spiralling whitefly, Gnanvossou, D., Hanna, R., Pallangyo, B., Toko, M., Nsami, E.* and Mfugale, O., in: Proceedings of the 9th ISTRC-AB Symposium, pages 644-647, Mombasa, Kenya, 2007.
 
The spread and persistence of exotic phytoseiid, Typhlodromalus aripo De Leon (Acari: Phytoseiidae) and its effect on cassava green mite in Kenya, Kariuki, C., Hanna, R., Toko, M. and Ngari, B., in: Proceedings of the 9th ISTRC-AB Symposium, pages 693-704, Mombasa, Kenya, 2007.
 
Biological control of cassava green mite in Tanzania, Pallangyo, B., Hanna, R., Toko, M., Gnanvossou, D., Mgoo, V., Otema, M, Onzo, A., Hountondji, F., Nsami, E.* and Mfugale, O., in: Proceedings of the 9th ISTRC-AB Symposium, pages 597-605, Mombasa, Kenya, 2007.
 
Changes in population abundance of the African root and tuber scale Stictococcus vayssierei Richard (Homoptera; Stictococcidae) on cassava in the Bas-Fleuve District in The Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Toko, M., Lema, K. and Solo, M., in: Proceedings of the 9th ISTRC-AB Symposium, pages 574-582, Mombasa, Kenya, 2007.
 
Pre-planting removal of host-plant residues to reduce African root and tuber scale infestations in cassava fields in Cameroon, Tindo, M., Hanna, R., Wijnans, L., Nolte, C., Goergen, G ., Nguekam, A. and Ngeve, J., in: Proceedings of the 9th ISTRC-AB Symposium, pages 633-639, Mombasa, Kenya, 2007.
 
Distribution, incidence and severity of Cassava diseases and pests in Mozambique, Toko, M., Hanna, R., Legg, J., Andrade, M., Jone, A., Agboton, B., Otema, M, Okao-Okuja, G., Obonyo, R. and Mambo, E., in: Proceedings of the 9th ISTRC-AB Symposium, pages 623-633, Mombasa, Kenya, 2007.
 
Biological control and functional biodiversity in agricultural production: successful cases to improve food security in Africa, Neuenschwander, P. and Hanna, R., in: Proceeding of the Symposium on Organic Agriculture in Development: the need for integrated production for food security, pages 19-24, 2007.
 

2006

Phytoseiid mites of the genus Neoseiulus hughes (Acari: Phytoseiidae) from sub-Saharan Africa, Zannou, I., De Moraes, G.*, Ueckermann, E.*, Oliveira, A.*, Yaninek, J. and Hanna, R., in: International Journal of Acarology, volume 32, number 3, pages 241-276, 2006.
 
Notes on the African root and tuber scale, Stictococcus vayssierei Richard, a recent reported cassava pest in the Bas-Congo Province of the Democratic Republic of Congo, Tata-Hangy, K.*, Lema, K., Ndambi, N., Lutete, D., Hanna, R., Toko, M. and Nkakwa, A., in: Roots, volume 1, number 10, pages 1-8, 2006.
 
Phytoseiid mites of the subtribes Typhlodromalina and Euseiina (Acari: Phytoseiidae: Euseiini) from sub-Saharan Africa, De Moraes, G.*, Zannou, I., Oliveira, A.*, Yaninek, J. and Hanna, R., in: Zootaxa, volume 1114, pages 1-52, 2006.
 
Morphological description and illustration of the female developmental stages of Stictococcus vayssierei (Homoptera: Stictoccocidae), Tindo, M., Doumtsop, A. R. P., Goergen, G . and Hanna, R., in: International Journal of Tropical Insect Science, volume 26, number 2, pages 126-133, ISSN 1742-7584, 2006.
 
Meloidogyne spp. and associated galling and damage on cassava in Kenya and Mozambique, Coyne, D., Toko, M., Andrade, M., Hanna, R., Sitole, A.*, Kagoda, F., Albanna, L. and Marais, M.*, Poster, 2006.
 
Inventaire de la faune des acariens sur Amaranthus cruentus L. (Amaranthaceae); Solanum macrocarpon L. et Solanum aethiopicum L. (Solanaceae) dans le Sud-Bénin, Adango, E., Onzo, A., Hanna, R., Atachi, P.* and James, B., in: International Journal of Tropical Insect Science, volume 26, number 3, pages 155-165, ISSN 1742-7584, 2006.
 
Comparative demography of the spider mite Tetranychus ludeni on two host plants in West Africa., Adango, E., Onzo, A., Hanna, R., Atachi, P.* and James, B., in: Journal of Insect Science, volume 6, number 49, pages 1-9, ISSN 1536-2442, 2006.
 
Controle biologico do acaro verde da mandioca, Mononychellus tanajoa, Zannou, I., De Moraes, G.* and Hanna, R., pages 97-103, chapter 2, Piracicaba, 2006.
 
The role of infochemicals in the interaction between cassava green mites and a fungal pathogen, Hountondji, F., Sabelis, M. and Hanna, R., 2006.
 
Effect of ant on biological control of a neotropical herbivorous mite pest Mononychellus tanajoa (Acari: Tetranychidae) a mite pest of cassava in Africa, Agboton, B., Hanna, R., Odjo, A. and Goergen, G ., 2006.
 
Inventaire et importance des degats des mouches des fruits sur quelques especes de cucurbitacees au Benin, Gnanvossou, D., Hanna, R., Azandeme, G., Goergen, G ., Tindo, M. and Agbaka, A., 2006.
 
Does methyl salicylate, a component of herbivore-induced plant odour promote sporulation of the mite-pathogenic fungus Neozygites tanajoae?, Hountondji, F., Hanna, R. and Sabelis, M., in: Experimental and Applied Acarology, volume 39, number 1, pages 63-74, 2006.
 
Fruit flies infesting cucurbits in West Africa, Gnanvossou, D., Hanna, R., Azandeme, G., Goergen, G . and Tindo, M., 2006.
 
The African fruit fly initiative (AFFI): developing and introducing affordable technologies and skills for management of fruit flies in Africa, Ekesi, S., Hanna, R., Billah, M.*, Goergen, G ., Lux, A., Mohamed, S., Gnanvossou, D. and Vayssieres, J., 2006.
 

2005

The impact of IITA-led biological control of major pests in sub-Saharan African agriculture: a synthesis of milestones and empirical results, Alene, A., Neuenschwander, P., Manyong, V., Coulibaly, O. and Hanna, R., Impact series, 2005.
 
Two new species of phytoseiid mites (Acari: Phytoseiidae) from Cameroon, Central Africa, Zannou, I., Zundel, C., Hanna, R. and De Moraes, G.*, in: Zootaxa, volume 1093, pages 55-59, ISSN 1175-5326, 2005.
 
Do herbivore-induced volatiles trigger sporulation in entomopathogenic? The case of Neozygites tanajoae infecting cassava green mite, Hountondji, F., Sabelis, M., Hanna, R. and Janssen, A., in: Journal of Chemical Ecology, volume 31, number 5, pages 1003-1021, ISSN 0098-0331, 2005. [DOI]
 
Comparative life history traits of three neotropical phytoseiid mites maintained on plant-derived diets, Gnanvossou, D., Hanna, R., Yaninek, J. and Toko, M., in: Biological Control, volume 35, pages 32-39, 2005.
 
Mites (Acari) of cassava (Manihot esculenta Crantz) habitat in southern Africa, Zannou, I., Hanna, R., De Moraes, G.*, Kreiter, S., Phiri, G. and Jone, A., in: International Journal of Acarology, volume 31, pages 1-36, 2005.
 
Biological control of cassava green mites in Africa: impact of the predatory mite Typhlodromalus aripo, Onzo, A., Hanna, R. and Sabelis, M., in: Entomologische Berichten, volume 65, number 1, pages 2-7, 2005.
 
Biological control of cassava green mite with exotic and indigenous phytoseiid predators-effects of intraguild predation and supplementary food, Onzo, A., Hanna, R., Negloh, K., Toko, M. and Sabelis, M., in: Biological Control, volume 33, number 2, pages 143-152, 2005.
 
Temporal and spatial dynamics of an exotic predatory mite and its herbivorous mite prey on cassava in Benin, West Africa, Onzo, A., Hanna, R., Yaninek, J. and Sabelis, M., in: Environmental Entomology, volume 34, pages 866-874, 2005.
 
Cannibalism and interspecific predation in a Phytoseiid predator guild from cassava fields in Africa: evidence from the laboratory, Zannou, I., Hanna, R., Kreiter, S. and De Moraes, G.*, in: Experimental and Applied Acarology, volume 37, pages 22-42, 2005.
 
Seasonal cycles and persistence in an acarine predator-prey system on cassava in Africa, Hanna, R., Onzo, A., Lingeman, R., Yaninek, J. and Sabelis, M., in: Population Ecology, volume 47, pages 107-117, ISSN 1438-3896, 2005.
 

2004

The status of cassava green mite biological control in Mozambique, Jone, A., Zannou, I., Hanna, R., Toko, M., Agboton, B. and Mambo, E., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Distribution and abundance of cassava pests in Tanzania with a note on the spiraling whitefly, Pallangyo, B., Gnanvossou, D., Hanna, R., Nsami, E.* and Mfugale, O., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Preliminary survey of entomopathogenic fungi associated with the African root and tuber scale Stictococcus vayssierei Richard, Wijnans, L., Tindo, M. and Hanna, R., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Effect of cassava leaf harvesting on a cassava green mite predator in the Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Muaka, T.* and Solo, M., in: African Crop Science Journal, volume 12, number 3, pages 289-293, ISSN 1021-9730, 2004.
 
Interactions between two neotropical phytoseiid predators and consequences for biological control of a shared prey, Onzo, A., Hanna, R., Janssen, A. and Sabelis, M., in: Biocontrol Science and Technology, volume 14, pages 63-76, 2004.
 
Biological control of cassava green mite in Kenya: spread and persistence of the predatory mite Typhlodromalus aripo, and impact on cassava green mite and cassava root yield, Kariuki, C., Hanna, R., Toko, M., Ngari, B. and Irungu, R., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Characteristics of cassava landraces and their reactions to diseases and pests in Cameroon, Ngeve, J., Hanna, R. and Tindo, M., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
Population dynamics of the African root and tuber scale on cassava in the Bas-Fleuve District of the Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Toko, M. and Lema, K., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch 31 October-5 November 2004, Mombasa, Kenya, 2004.
 
The African root and tuber scale problem in Central Africa: the nature of the problem and the search for control options, Hanna, R., Tindo, M., Wijnans, L., Goergen, G ., Tata-Hangy, K.*, Lema, K., Toko, M., Ngeve, J. and Gockowski, J., in: 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004.
 

2003

Cassava: from poor farmer's crop to pacesetter of African rural development, Dixon, A., Bandyopadhyay, R., Coyne, D., Ferguson, M., Ferris, R. S. B., Hanna, R., Hughes, J., Ingelbrecht, I., Legg, J., Mahungu, N., Manyong, V., Mowbray, D., Neuenschwander, P., Whyte, J., Hartmann, P. and Ortiz, R., in: Chronica Horticulturae, volume 43, number 4, pages 8-15, ISSN 0578-039X, 2003.
 
Perspectives on cassava IPM in the Democratic Republic of Congo, Lema, K., Tata-Hangy, K.*, Toko, M. and Hanna, R., in: Paper presented at: Proceedings of the 3rd Inter-regional Meeting of the Africa-wide Cassava Green Mite Biocontrol Project, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, Benin, 2003.
 
Progress in the biological control of cassava green mite in Kenya, Kariuki, C., Toko, M., Hanna, R. and Ngari, B., in: Paper presented at: Proceedings of the 3rd Inter-regional Meeting of the Africa-wide Cassava Green Mite Biocontrol Project,, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, Benin, 2003.
 
Effect of prey mite species on hife history of the phytoseiid predators Typhlodromalus manihoti and typhlodromalus aripo, Gnanvossou, D., Yaninek, J., Hanna, R. and Dicke, M., in: Experimental and Applied Acarology, volume 30, pages 265-278, 2003.
 
Cassava green mite biological control in Zambia: progress through 2001, Mebelo, M., Hanna, R. and Toko, M., in: Paper presented at: Proceedings of the 3rd Inter-regional Meeting of the Africa-wide Cassava Green Mite Biocontrol Project, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, 2003.
 
Non-target effects of the introduction of the neotropical predatory mite Typhlodromalus aripo for the control of cassava green mite in Malawi and Mozambique, Zannou, I., Hanna, R., Toko, M., Phiri, G. and Jone, A., in: Paper presented at: Proceedings of the 3rd Inter-regional Meeting of the Africa-wide Cassava Green Mite Biocontrol Project, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, Benin, 2003.
 
Socioeconomic impact of cassava green mite biocontrol in Africa, Coulibaly, O., Hanna, R. and Toko, M., in: Paper presented at: Proceedings of the 3rd Inter-regional meeting of the Africa-wide Cassava Green Mite Biocontrol Project, pages 85-101, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, 2003.
 
Infochemical-medicated niche use by Typhlodromalus manihoti and T. aripo (Acari: Phytoseiidae), Gnanvossou, D., Hanna, R. and Dicke, M., in: Oecologia, volume 134, pages 84-90, 2003.
 
Infochemically-mediated intraguild interactions among three predator mites on cassava, Gnanvossou, D., Hanna, R. and Dicke, M., in: Journal of Insect Behavior, volume 16, pages 523-535, ISSN 0892-7553, 2003.
 
Interactions in an acarine predator guild: impact on Typhlodromalus aripo abundance and biological control of cassava green mite in Benin, West Africa, Onzo, A., Hanna, R. and Sabelis, M., in: Experimental and Applied Acarology, volume 31, pages 225-241, ISSN 0168-8162, 2003.
 
Dynamics of refuge use: diurnal vertical migration of predatory and herbivorous mites within cassava plants, Onzo, A., Hanna, R., Janssen, A., Sabelis, M. and Yaninek, J., in: Oikos, volume 10, pages 59-69, 2003.
 
Cassava green mite in Africa - a unique example of successful classical biological control of a mite pest on a continental scale, Yaninek, S. and Hanna, R., pages 61-75, chapter 4, CABI, ISBN 0-85199-639-6, 2003. [DOI]
 
Africa-wide classical biological control of cassava green mite: overview accomplishments and future actions and priorities, Hanna, R. and Toko, M., in: Paper presented at: Proceedings of the 3rd Inter-regional Meeting of the Africa-wide Cassava Green Mite Biocontrol Project; International Insitute of Tropical Agriculture(IITA), Biological Control Center for Africa, Cotonou, 2003.
 
Effects of cover crop and spider predation on population dynamics of Erythroneura variabilis in a raisin vineyard, Hanna, R., Zalom, F. and Roltsch, W., in: Entomologia Experimentalis et Applicata, volume 107, pages 177-192, 2003.
 

2002

New species of phytoseiidmites from Mozambique and Malawi, Zannou, I., De Moraes, G.* and Hanna, R., in: Zootaxa, volume 79, pages 1-6, 2002.
 
Field Evaluation of Brazilian isolates of Neozygites foridana (Entomophthorales: Neozygitaceae) for the microbial control of cassava green mite in Benin, West Africa, Hountondji, F., Lomer, C., Hanna, R., Cherry, A. and Dara, S. K., in: Biocontrol Science and Technology, volume 12, pages 361-370, ISSN 0958-3157, 2002.
 
Flexible antipredator behavior in herbivorous mites through vertical migration in a plant, Magelhaes, S., Janssen, A., Hanna, R. and Sabelis, M., in: Oecologia, volume 132, pages 143-149, 2002.
 
Two new species of phytoseiid mites from southern Africa, Zannou, I., De Moraes, G.* and Hanna, R., in: Zootaxa, volume 79, pages 1-6, 2002.
 
Non food crop pest of the African root and tuber scale, Sctictococcus vayssierei (Homoptera: Sictococcidae), Tindo, M., Hanna, R., Goergen, G . and Zapfack, L.*, in: Proceedings, Ibadan, Nigeria, 2002.
 
Development and application of a biological control program for cassava green mite in Africa, Toko, M. and Hanna, R., in: Paper presented, Kisumu, Kenya, 2002.
 
Prey-related odor preference of the predatory mites Typhlodromalus manihoti and Typhlodromalus aripo (Acari: Phytoseiidae), Gnanvossou, D., Hanna, R. and Dicke, M., in: Experimental and Applied Acarology, volume 27, pages 39-56, 2002.
 
Land use patterns and abundance of Stictococcus vayssierei on cassava in central Africa, Hanna, R., Tindo, M. and Goergen, G ., in: Abstacts of the Entomological Society of America Pacific Branch meeting, June, Lake Tahoa, Nevada, 2002.
 

2001

Impact of gray field ant exclusion from vines on grape mealybug abundance, parasitism, and infestation: a progress report, Bentley, J. W.*, Martin, L. and Hanna, R., in: UC Plant Protection Quarterly, volume 11, number 3, pages 3-6, 2001.
 
Classical biological control of cassava green mite in the Democratic Republic of Congo: population dynamics of the exotic predator of Typhlodromalus aripo and its impact on cassava green mite, Tata-Hangy, K.*, Hanna, R. and Toko, M., International Institute of Tropical Agriculture (IITA), 2001.
 
Economic Impact assessment of classical biological control of cassava green mite in West Africa: an economics surplus mode, Coulibaly, O., Hanna, R., Yaninek, J. and Manyong, V., pages 4, International Society of Tropical Toot Crops (ISTRC) - Africa Branch; International Institute of Tropical Agriculture (IITA), 2001.
 
Attraction of the predatory mites Typhlodromalus manihot and Typhlodromalus aripo to cassava plants infested by cassava green mite, Gnanvossou, D., Hanna, R., Dicke, M. and Yaninek, J., in: Entomologia Experimentalis et Applicata, volume 101, pages 291-298, 2001.
 
Status of Stictoccocus vayssierei Richard and its impact on cassava root yield in the Bas-Fleuve district of the Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Lema, K., Bidiaka, M. and Ndambi, N., pages 37, International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 2001.
 
Native host plants of the African root and tuber scale in Cameroon, Tindo, M., Hanna, R., Goergen, G . and Zapfack, L.*, in: Book of Abstracts of the Eighth Triennal Symposium of the International Society of Tropical Root Crops - Africa Branch, 12-16 Nov, pages 62, 2001.
 
Factors affecting variety choice by small farmers and sustainable biological control of cassava green mite in Benin, Fagbemissi, R.*, Hanna, R., Coulibaly, O. and Toko, M., pages 62, 2001.
 
Cassava apex hairiness affects the abundance of Typhlodromalus aripo, an exotic phytoseiid predator of cassava green mite, Hanna, R., Ojo, D., Toko, M., Onzo, A., Paraiso, G. and Gnanvossou, D., pages 67, 2001.
 

2000

Dispersal and spread of exotic phytoseiids in Africa, Yaninek, J. and Hanna, R., in: Abstracts of the XXI International Congress of Entomology, Iguassu Falls, Brazil, 20-26 August, pages 2, 2000.
 
Abundance of exotic phytoseiids on cassava in Africa: effect of shoot apex characteristics, Hanna, R., Ojo, D., Yaninek, J., Toko, M., Onzo, A., Paraiso, G. and Gnanvossou, D., pages 10, 2000.
 
Integrated management of spider mites in California vineyards, Hanna, R., Salom, F. and Wilson, L., in: Abstracts of the XXI International Congress of Entomology, Iguassu Falls, Brazil, 20-26 August 2000. Iguassu Falls, Brazil, pages 35, 2000.