An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)

Therophilus javanus is a koinobiont, solitary larval endoparasitoid currently being considered as a biological control agent against the pod borer Maruca vitrata, a devastating cowpea pest causing 20–80% crop losses in West Africa. We investigated ovary morphology and anatomy, oogenesis, potential...

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Autores principales: Souna, D.A., Bokonon-Ganta, A.H., Ravallec, M., Cusumano, A., Pittendrigh, Barry Robert, Volkoff, A.N., Tamò, Manuele
Formato: Journal Article
Lenguaje:Inglés
Publicado: Hindawi Limited 2017
Materias:
Acceso en línea:https://hdl.handle.net/10568/88121
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author Souna, D.A.
Bokonon-Ganta, A.H.
Ravallec, M.
Cusumano, A.
Pittendrigh, Barry Robert
Volkoff, A.N.
Tamò, Manuele
author_browse Bokonon-Ganta, A.H.
Cusumano, A.
Pittendrigh, Barry Robert
Ravallec, M.
Souna, D.A.
Tamò, Manuele
Volkoff, A.N.
author_facet Souna, D.A.
Bokonon-Ganta, A.H.
Ravallec, M.
Cusumano, A.
Pittendrigh, Barry Robert
Volkoff, A.N.
Tamò, Manuele
author_sort Souna, D.A.
collection Repository of Agricultural Research Outputs (CGSpace)
description Therophilus javanus is a koinobiont, solitary larval endoparasitoid currently being considered as a biological control agent against the pod borer Maruca vitrata, a devastating cowpea pest causing 20–80% crop losses in West Africa. We investigated ovary morphology and anatomy, oogenesis, potential fecundity, and egg load in T. javanus, as well as the effect of factors such as age of the female and parasitoid/host size at oviposition on egg load.The number of ovarioles was found to be variable and significantly influenced by the age/size of the M. vitrata caterpillar when parasitized. Egg load also was strongly influenced by both the instar of M. vitrata caterpillar at the moment of parasitism and wasp age.The practical implications of these findings for improving mass rearing of the parasitoid toward successful biological control of M. vitrata are discussed.
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spelling CGSpace881212025-12-08T09:54:28Z An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae) Souna, D.A. Bokonon-Ganta, A.H. Ravallec, M. Cusumano, A. Pittendrigh, Barry Robert Volkoff, A.N. Tamò, Manuele grain legumes hymenoptera braconidae biological control agents lepidoptera biological control Therophilus javanus is a koinobiont, solitary larval endoparasitoid currently being considered as a biological control agent against the pod borer Maruca vitrata, a devastating cowpea pest causing 20–80% crop losses in West Africa. We investigated ovary morphology and anatomy, oogenesis, potential fecundity, and egg load in T. javanus, as well as the effect of factors such as age of the female and parasitoid/host size at oviposition on egg load.The number of ovarioles was found to be variable and significantly influenced by the age/size of the M. vitrata caterpillar when parasitized. Egg load also was strongly influenced by both the instar of M. vitrata caterpillar at the moment of parasitism and wasp age.The practical implications of these findings for improving mass rearing of the parasitoid toward successful biological control of M. vitrata are discussed. 2017 2017-10-03T15:00:27Z 2017-10-03T15:00:27Z Journal Article https://hdl.handle.net/10568/88121 en Open Access application/pdf Hindawi Limited Souna, D.A., Bokonon-Ganta, A., Ravallec, M., Cusumano, A., Pittendrigh, B.A., Volkoff, A.N. & Tamo, M. (2017). An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae). Psyche, 1-8.
spellingShingle grain legumes
hymenoptera
braconidae
biological control agents
lepidoptera
biological control
Souna, D.A.
Bokonon-Ganta, A.H.
Ravallec, M.
Cusumano, A.
Pittendrigh, Barry Robert
Volkoff, A.N.
Tamò, Manuele
An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)
title An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)
title_full An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)
title_fullStr An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)
title_full_unstemmed An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)
title_short An insight in the reproductive biology of Therophilus javanus (Hymenoptera, Braconidae, and Agathidinae), a potential biological control agent against the legume pod borer (Lepidoptera, Crambidae)
title_sort insight in the reproductive biology of therophilus javanus hymenoptera braconidae and agathidinae a potential biological control agent against the legume pod borer lepidoptera crambidae
topic grain legumes
hymenoptera
braconidae
biological control agents
lepidoptera
biological control
url https://hdl.handle.net/10568/88121
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