Herren, H. R.    

Firstname:H. R. 
Surname:Herren 
Email: 
Institute:IITA 
Homepage:http://www.iita.org 
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76 publications (0 read)





Publications as Author



2011

Agriculture: investing in natural capital, Herren, H. R., Atapattu, S.*, Bassi, S. A., Binns, P., Ching, L., Fernandez, M., Khan, S.*, Kodituwakku, D., Lal, R., Najam, A., Naqvi, A., Neuenschwander, P., Puri, J., Tamo, M. and Treyer, S., United Nations Environment Programme (UNEP)), 2011.
 

2001

Economics of biological control of cassava mealybug in Africa, Zeddies, J., Schaab, R. P., Neuenschwander, P. and Herren, H. R., in: Agricultural Economics, volume 24, number 2, pages 209-219, ISSN 0169-5150, 2001.
 

1997

Decision-making by smallholder farmers in an oil plam-based economy in southern Benin, West Africa, Meikle, W., Gutierrez, A. P. and Herren, H. R., in: Tropical Agriculture (Trinidad), volume 73, pages 217-225, 1997.
 

1995

Experimental assessment of the impact of the introduced parasitoid Gyranusoidea tebygi Noyes on the mango mealbug Rastrococcus invadens Williams, by physical exclusion, Boavida, C., Neuenschwander, P. and Herren, H. R., in: Biological Control, volume 5, number 1, pages 99-103, ISSN 1049-9644, 1995. [DOI]
 

1994

Establishment and spread of Gyranusoidea tebygi Noyes and Anagyrus mangicola Noyes (Hymenoptera: Encyrtidae), two biologigal control agents released against the mango mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidae) in Africa, Neuenschwander, P., Boavida, C., Bokonon-Ganta, A. H., Gado, A. and Herren, H. R., in: Biocontrol Science and Technology, volume 4, pages 61-69, 1994.
 
Ecologically sustainable and environmentally sound approach to plant protection in land management, Herren, H. R. and Tamo, M., in: International Workshop on Sustainable Land Management for the 21st Century, 20-26 June 1993, Lethbridge, Canada, pages 97-111, University of Lethbridge, 1994.
 
Cassava pest and disease management: an overview, Herren, H. R., in: African Crop Science Journal, volume 2, number 4, pages 345-353, ISSN 1021-9730, 1994.
 

1993

Assessment of key factors responsible for the pest status of the bean flower thrips Megaluthrothrips sjostedti (Thysanoptera, Thripidae) in West Africa, Tamo, M., Baumgartner, J., Delucchi, V. and Herren, H. R., in: Bulletin of Entomological Research, volume 83, pages 251-258, 1993.
 
A packaging and delivery system for aerial release of Phytoseiidae, Drukker, B., Yaninek, J. and Herren, H. R., in: Experimental and Applied Acarology, volume 16, pages 129-143, 1993.
 

1992

Establishment of the neotropicalpredator Amblyseius idaeus(Acari: Phytoseiidae) in Benin, West Africa, Yaninek, J., Megevand, B., Moraes *, G. J., Bakker, F., Braun, A. and Herren, H. R., in: BioControl Science and Technology, volume 1, pages 323-330, 1992.
 
Biological control in cassava: a viable crop protection package for resource-poor farmers, Hammond, W., Neuenschwander, P., Yaninek, J. and Herren, H. R., in: Seminar on Crop Protection for Resources-Poor Farmers, pages 45-54, Technical Centre for Agricultural Co-operation (CTA); Natural Resources Institute (NRI), 1992.
 

1991

Aerial release of acarine biological control agents on carrier materials, Drukker, B., Yaninek, J., Coles, R. N. and Herren, H. R., Netherlands Entomological Society, 1991.
 
Le complexe entomophage de la cochenille du manioc au Gabon; 4: Etablissement du parasitoide Epidinocarsis lopezi (Hhm.: Encyrtidae) et deplacement competitif des parasites indigenes, Boussienguet, J., Neuenschwander, P. and Herren, H. R., in: Entomophaga, volume 36, pages 455-469, 1991.
 
Integrated pest management in root and tuber crops/Protection integree des plantes a racines et tubercules, Neuenschwander, P., Herren, H. R. and Wodageneh, A., International Institute of Tropical Agriculture (IITA), 1991.
 
Biological control of cassava pests in Africa, Herren, H. R. and Neuenschwander, P., in: Annual Review of Entomology, volume 36, pages 257-283, ISSN 0066-4170, 1991. [DOI]
 

1990

Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae), Akpokodje, G. O., Odebiyi, J., Ochieng, R. S. and Herren, H. R., in: Bulletin de la Societe Entomologique Suisse, volume 63, pages 327-335, ISSN 0036-7575, 1990.
 
Dynamics of Mononychellus tanajoa (Acari: Tetranychidae) in Africa: impact on dry matter production and allocation in cassava, Manihot esculenta, Yaninek, J., Gutierrez, A. P. and Herren, H. R., in: Environmental Entomology, volume 19, pages 1767-1772, ISSN 0046-225X, 1990.
 
Biological control of the larger grain borer, Markham, R. H. and Herren, H. R., International Institute of Tropical Agriculture (IITA), 1990.
 
La lutte biologique contre le grand capucin du mais; comptes rendus d'une reunion de coordination IITA/FAO tenue les 2 et 3 juin 1989 a Cotonou, (Republique du Benin), Markham, R. H. and Herren, H. R., International Institute of Tropical Agriculture (IITA), 1990.
 
La lutte biologique: une solution durable aux problemes poses par les depredateurs des cultures en Afrique, Yaninek, J. and Herren, H. R., International Institute of Tropical Agriculture (IITA), 1990.
 
The Africa-wide Biological Control Program, Herren, H. R., pages 33-41, International Institute of Tropical Agriculture (IITA), 1990.
 
Biological control as the primary option in sustainable pest management: the cassava pest project, Herren, H. R., in: Bulletin de la societe entomologique suisse, volume 63, pages 405-413, ISSN 0036-7575, 1990.
 
Coordination of biological control efforts against the larger grain borer, Herren, H. R., in: Biological control of the larger grain borer: proceedings of an IITA/FAO coordination meeting, Cotonou, Republic of Benin, 2-3 Jun 1989, edited by R.H. Markham and H.R. Herren, pages 137-145, International Institute of Tropical Agriculture (IITA), 1990.
 

1989

Insect invasions: the case of the cassava mealybug and its natural enemies evaluated, Van Alphen, J. J. M., Neuenschwander, P., van Dijken, M. J., Hammond, W. and Herren, H. R., in: The Entomologist, volume 108, pages 38-55, 1989.
 
Sampling Phenacoccus manihoti in cassava fields in Nigeria, Schulthess, F., Baumgaertner, J. U. and Herren, H. R., in: Tropical Pest Management, volume 35, pages 193-200, 1989.
 
Dynamics of Mononychellus tanajoa (Acari: Tetranychidae) in Africa: experimental evidence of the effects of temperature and host plant on population growth rates, Yaninek, J., Gutierrez, A. P. and Herren, H. R., in: Environmental Entomology, volume 18, pages 633-640, 1989.
 
Dynamics of Mononychellus tanajoa (Acari: Tetranychidae) in Africa: seasonal factors affecting phenology and abundance, Yaninek, J., Herren, H. R. and Gutierrez, A. P., in: Environmental Entomology, volume 18, pages 625-632, 1989.
 
Biological control: a sustainable solution to crop pest problems in Africa, Yaninek, J. and Herren, H. R., International Institute of Tropical Agriculture (IITA), 1989.
 
African-wide biological control project of cassava mealybug and cassava green mites: a review of objectives and achievements, Herren, H. R., in: Insect Science and its Application, volume 8, pages 837-840, 1989.
 
The Biological Control Program of IITA: from concept to reality, Herren, H. R., pages 18-30, International Institute of Tropical Agriculture (IITA), 1989.
 

1988

An overview of a systems model of cassava and cassava pests in Africa, Gutierrez, A. P., Wermelinger, B., Schulthess, F., Baumgaertner, J. U., Yaninek, J., Herren, H. R., Neuenschwander, P., Lohr, B., Hammond, W. and Ellis, C. K., in: Insect Science and its Application, volume 8, pages 919-924, 1988.
 
Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava, Gutierrez, A. P., Wermelinger, B., Schulthess, F., Baumgaertner, J. U., Herren, H. R., Ellis, C. K. and Yaninek, J., in: Journal of Applied Ecology, volume 25, number 3, pages 901-920, ISSN 0021-8901, 1988.
 
Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti), Gutierrez, A. P., Neuenschwander, P., Schulthess, F., Herren, H. R., Baumgaertner, J. U., Wermelinger, B., Lohr, B. and Ellis, C. K., in: Journal of Applied Ecology, volume 25, number 3, pages 921-940, ISSN 0021-8901, 1988.
 
Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa, Gutierrez, A. P., Yaninek, J., Wermelinger, B., Herren, H. R. and Ellis, C. K., in: Journal of Applied Ecology, volume 25, pages 941-950, ISSN 0021-8901, 1988.
 
Biological control of the cassava mealybug, Phenacoccus manihoti, by the exotic parasitoid Epidinocarsis lopezi in Africa [and Discussion], Neuenschwander, P., Herren, H. R., Harpaz, I., Badulescu, D. and Akingbohungbe, A. E., in: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, volume 318, number 1189, pages 319-333, ISSN 0962-8436, 1988. [DOI]
 
Introduction and spread of the cassava gree mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae), an exotic pest in Africa and the search for appropriate control methods: a review, Yaninek, J. and Herren, H. R., in: Bulletin of Entomological Research, volume 78, pages 1-13, 1988.
 
The biological basis for the seasonal outbreak of cassava green mites in Africa, Yaninek, J., Herren, H. R. and Gutierrez, A. P., in: Insect Science and its Application, volume 8, pages 861-865, 1988.
 
Technology for automated aerial release of natural enemies of the cassava mealybug and cassava green mite, Herren, H. R., Bird, T. and Nadel, D. J., in: Insect Science and its Application, volume 8, pages 883-885, 1988.
 
Cassava mealybug (Phenacoccus manihoti) and green spider mites (Mononychellus spp.) biological control: an example of classical biological control for Africa, Herren, H. R., Neuenschwander, P., Hammond, W., Yaninek, J., Gutierrez, A. P., Haug, T., Schulthess, F., Lohr, B., Varela, A. M. and Hennessey, R. D., Institut national de la recherche agronomique (INRA), 1988.
 

1987

Impact of the exotic parasitoid Epidinocarsis lopezi on cassava mealybug (Phenacoccus manihoti) populations, Hammond, W., Neuenschwander, P. and Herren, H. R., in: Insect Science and its Application, volume 8, pages 887-891, 1987.
 
Food web of insects associated with the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae), and its introduced parasitoid, Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae), in Africa, Neuenschwander, P., Hennessey, R. D. and Herren, H. R., in: Bulletin of Entomological Research, volume 77, number 2, pages 177-189, ISSN 0007-4853, 1987. [DOI]
 
Factors influencing the life table statistics of the cassava mealybug Phenacoccus manihoti, Schulthess, F., Baumgaertner, J. U. and Herren, H. R., in: Insect Science and its Application, volume 8, pages 851-856, ISSN 0191-9040, 1987.
 
Technologies for the mass-rearing of cassava mealybugs, cassava green mites and their natural enemies, Haug, T., Herren, H. R., Nadel, D. J. and Akinwumi, B., in: Insect Science and its Application, volume 8, pages 879-881, 1987.
 
International co-operation: training and initiation of national biological control programmes, Wodageneh, A. and Herren, H. R., in: Insect Science and its Application, volume 8, pages 915-918, 1987.
 
Progress in the biological control of the cassava green mite by the Africa-wide Biological Control Project, Yaninek, J. and Herren, H. R., in: Cassava Green Mite in Eastern Africa: yield losses and integrated control, edited by R.H. Markham & I.A.D. Robertson, pages 26-33, Beeline Printing Ltd., 1987.
 
Introduction and dispersal of Epidinocarsis lopezi (Hymenoptera: Encyrtidae), an exotic parasitoid of the cassava mealybug. Phenacoccus manihoti (Homoptera: Pseudococcidae), in Africa, Herren, H. R., Neuenschwander, P., Hennessey, R. D. and Hammond, W., in: Agriculture, Ecosystems and Environment, volume 19, pages 131-144, 1987.
 

1986

Insekten gegen Insekten: Biologische Schadlingsbekampfung gegen die Maniokschmierlaus in Africa, Lohr, B. and Herren, H. R., in: Entwicklung und Landlicher Raum, volume 3, number 86, pages 29-33, 1986.
 

1985

The influence of constant temperature on population growth rates of the cassava mealybug, Phenacoccus manihoti, Lema, K. and Herren, H. R., in: Entomologia experimentalis et applicata, volume 38, number 2, pages 165-169, ISSN 0013-8703, 1985.
 
Release and establishment in Nigeria of Epidinocarsis lopezi, a parasitoid of the cassava mealybug, Phenacoccus manihoti, Lema, K. and Herren, H. R., in: Entomologia experimentalis et applicata, volume 38, number 2, pages 171-175, ISSN 0013-8703, 1985.
 

1983b

The Africa-wide programme for biolgical control of the cassava mealybug and green spider mites: the importance of thorough foreign exploration for beneficial insects and mites, Herren, H. R. and Lawson, T. L., in: Paper presented at the Third Brazilian Cassava Congress, 7-11 November 1983, Brasilian, Brazil, pages 7-11, 1983b.
 

1983a

The Africa-wide biological control programme of cassava mealybug and green spider mites: achivements and control strategies, Herren, H. R., in: Paper presented at USAID Regional Meeting 7-11 December 1983,Harare, Zimbabwe, pages 7-11, 1983a.
 

1983

The mealybug front hypothesis: possible role of indegenous natural enemies, Lema, K., Hennessey, R. D. and Herren, H. R., 1983.
 
The cassava mealyburg and green spider mites problem and the biological control approach to solve it, Herren, H. R., in: Paper presented at the annual Meeting of the Entomological Society of America,2-5 December 1983, Detroit, Michigan, pages 2-5, 1983.
 
The Africa-wide biological control programme of cassava mealybug and green spider mites: achivement and control strategies, Herren, H. R., in: Paper presented at USAID Regional Meeting 7-11 December 1983, Harare, Zimbabwe, pages 7-11, 1983.
 
Biological control of the mealybug, Phenacoccus manihoti, and the green spider mite complex, Mononychellus ssp, on cassava, Manihot esculenta, in Africa, Herren, H. R., Lema, K. and Neuenschwander, P., in: Paper presented at the Third Brazilian Cassava Congress, 20-25 November 1983, Brighton, England, pages 20-25, 1983.
 

1982

Cassava mealybug control strategy: IITA's approach, Hahn, S. K. and Herren, H. R., in: Paper presented at NAFPP Workshop,NRCRI, 21-26 February 1982, Umudike, Canada, 1982.
 
Bionomics of Phenacoccus manihoti, an introduced pest of cassava in Africa, Lema, K. and Herren, H. R., in: Paper presented at workshop on Biocontrol and Resistance Breeding to Control the Cassava Mealybug and Green Spider Mite in Africa, 6-10 December, 1982, 1982.
 
Relationship of temperature and development in Apoanagyrus lopezi (Hmenoptera: Encyrtidae) and Scymnus sp (Coleoptera: Coccinellidae), Lema, K. and Herren, H. R., in: Paper presented at the International Workshop on Biological Control and Host Plant Resistance to Control the Cassava Mealybug and the Green Spider Mite in Africa. 6-10 December 1982r, 1982.
 
Biological Control of Cassava Mealybug and Cassava Green Mite: Front-line Release Strategy, Lema, K. and Herren, H. R., in: Root Crops in Eastern Africa. Proceedings of a workshop, pages 68-69, 1982.
 
Recent advances in the biological control of the Casssava Mealybug ( Phenacoccus manihoti Mat-Fer, Homoptera: Pseudococcidae), Herren, H. R., in: Paper presented at the Second West Africa Regional Root Crops Workshop,, 1982.
 
Distribution and economic importance of P.manihoti and Mononychellus ssp. in Africa, Herren, H. R., in: Paper presented at International Workshop on Biological Control and Host Plant Resistance to Control the Cassava Mealybug and GreenSpider, 1982.
 
Cassava mealybug: an example of international collaboration, Herren, H. R., in: Biocontrol News and Information, volume 1, number 1, ISSN 0143-1404, 1982.
 
Cassava mealybug: first successful release, Herren, H. R. and Lema, K., in: Biocontrol News and Information, volume 3, pages 186, ISSN 0143-1404, 1982.
 

1981

Biological control of the cassava mealybug and green spider mite with emphasis on the front of the release strategy, Lema, K. and Herren, H. R., in: Paper presented at the Symposium on root and tuber crops. Kigali, November, 1980, 1981.
 
Effect of constant temperatures on the development of the cassava mealybug., Lema, K. and Herren, H. R., in: Paper presented at the International workshop on cassava mealybug and green spider mite, Umudike, 12-16 October 1981, 1981.
 
IITA's role and action in the cassava and mealybug (Phenacoccus manihoti Mat. Fer.) and green spider mite (Mononychelius tanajoa Bondar) integrated control in Africa, Herren, H. R., in: Paper presented at the International Workshop on cassava mealybug and green spider mite, Umudike. 12-16 October 1981, 1981.
 
Current biological control research of IITA with special emphasis on the cassava mealybug (Phenaccuss manhoti Mat-Ferr.), Herren, H. R., in: Paper presented at the Biological control workshop for the Sahel, Dakar, 1981, 1981.
 
IITA's role and action in controlling the cassava meaybug in Africa, Herren, H. R., number Vol.2 No.4, 1981.
 

1980

Biological control of the cassava mealybug (Phenacoccus manihoti (MAT-FER), Herren, H. R., 1980.
 
Biological control of the cassava mealybug (Phenacoccus manihoti (MAT-FER), Herren, H. R., 1980.
 
Biological control of the cassava mealybug (Phenacoccus manihoti MAT-FER) with emphasis on dispersal frontline release on dispersal frontline release strategy, Herren, H. R. and Lema, K., 1980.
 
Biological control of cassava mealybug (Phenacoccus manihoti MAT-FER), Herren, H. R., 1980.
 

Publications as Editor

1991

Breeding cassava for multiple pest resistance in Africa, Hahn, S. K., Dixon, A. and Asiedu, R., in: Integrated pest management in root and tuber crops: proceedings of a workshop held at the Biological Control Center for Africa, 10-14, Dec. 1990, Cotonou, Republic of Benin, International Institute of Tropical Agriculture (IITA), 1991.
 

1989

Appropriate support for national programs; training, research, administration and funding, Markham, R. H. and Sicely, E. M., in: Bioloigcal control: a sustainable solution to crop pest problems in Africa: proceedings of the Inaugural Conference and Workshop of the IITA Biological Control Program Center for Africa, 5-9 Dec 1988, Cotonou, Benin edited by Yaninek, J. and H. R. Herren, pages 156-165, 1989.
 

1985

Common African pests and diseases of cassava, yam, sweet potato and cocoyam, International Institute of Tropical Agriculture (IITA), ISBN 978-131-001-4, 1985.
 
Les principaux ravageurs et maladies du manioc, de l'igname, de la patate douce et des aracees en Afrique, International Institute of Tropical Agriculture (IITA), 1985.