Suitability ofBusseola fuscaandSesamia calamistis(Lepidoptera: Noctuidae) for the Development of Two Populations ofCotesia sesamiae(Hymenoptera: Braconidae) in Kenya |
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| Authors: | A.J. Ngi-Song W.A. Overholt R. Stouthamer |
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| Affiliation: | aThe International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya;bDepartment of Entomology, Wageningen Agricultural University, P.O. Box 8031, 6700 EH, Wageningen, The Netherlands |
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| Abstract: | The suitability ofSesamia calamistisHampson andBusseola fusca(Fuller) for the development of two geographical populations ofCotesia sesamiae(Cameron) was examined in the laboratory. One population of the parasitoid was collected from the coast of Kenya and the other from the inland. Both populations of the parasitoid could develop onS. calamistis.OnB. fusca,the inland population ofC. sesamiaewas able to develop, while the population from the coastal area of Kenya was encapsulated. Mating studies revealed that the two parasitoid populations were partially reproductively isolated. Unidirectional incompatibility, possibly caused by theWolbachiainfection, was observed when males from the infected coastal population were mated with females from the uninfected inland population. |
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| Keywords: | host suitability Cotesia sesamiae(Cameron) Hymenoptera Braconidae stemborer Busseola fusca(Fuller) Sesamia calamistisHampson Lepidoptera Noctuidae cytoplasmic incompatibility unidirectional incompatibility Wolbachia. |
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