van Alphen, J. J. M.    

Firstname:J. J. M. 
von:van 
Surname:Alphen 
Email: 
Institute:Institute of Evolutionary and Ecological Science, University of Leiden, The Netherlands 
Homepage: 

5 publications (0 read)





Publications as Author



1997

Competition between two parasitoids of the mango mealybug, Bokonon-Ganta, A. H., van Alphen, J. J. M. and Neuenschwander, P., in: IITA Research, number 14/15, pages 14-18, ISSN 1115-3067, 1997.
 

1995

Host stage selection and sex allocation by Gyranusoidea tebygi (Hymenoptera: Encyrtidea), a parasitoid of the mango mealbug, Rastrococcus invadens (Homoptera: Pseudococcidae), Boavida, C., Ahounou, M., Vos, M., Neuenschwander, P. and van Alphen, J. J. M., in: Biological Control, volume 5, number 4, pages 487-496, ISSN 1049-9644, 1995. [DOI]
 
Host stage selection and sex allocation by Anagyrus mangicola (Hymenoptera: encyrtidae), a parasitoid of the mango mealybug, Rastrococcus invadens (Homoptera: pseudococcidae), Bokonon-Ganta, A. H., Neuenschwander, P., van Alphen, J. J. M. and Vos, M., in: Biological Control, volume 5, number 4, pages 479-486, ISSN 1049-9644, 1995. [DOI]
 

1993

Factors affecting biological control of cassava mealybug by exotic parasitoids: a ratio-dependent supply-demand driven model, Gutierrez, A. P., Neuenschwander, P. and van Alphen, J. J. M., in: Journal of Applied Ecology, volume 30, pages 706-721, ISSN 0021-8901, 1993.
 

1991

Sex ratios in field populations of Epidinocarsis lopezi, an exotic parasitoid of the cassava mealybug, in Africa, van Dijken, M. J., Neuenschwander, P., van Alphen, J. J. M. and Hammond, W., in: Ecological Entomology, volume 16, pages 233-240, 1991.