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).

IF 1.6 Q2 ENTOMOLOGY Psyche: A Journal of Entomology Pub Date : 2017-01-01 Epub Date: 2017-09-28 DOI:10.1155/2017/3156534
Djibril Aboubakar Souna, Aimé Bokonon-Ganta, Marc Ravallec, Antonino Cusumano, Barry Robert Pittendrigh, Anne-Nathalie Volkoff, Manuele Tamò
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引用次数: 4

Abstract

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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javophilus javanus(膜翅目,小蜂科,小蜂科)是一种潜在的豆荚螟虫生物防治剂。
爪哇热嗜菌是一种单独的幼虫类内寄生虫,目前被认为是一种生物防治剂,用于防治豆荚螟,一种造成西非20-80%作物损失的破坏性豇豆害虫。研究了爪哇瓢虫卵巢形态解剖、卵发生、潜在繁殖力和卵载情况,以及雌性年龄和产卵时寄生蜂/寄主大小等因素对卵载的影响。虫卵数是可变的,受寄生虫卵的年龄/大小的显著影响。卵量也受寄生时卵龄和寄生蜂年龄的影响。本文还讨论了这些发现对改善寄生蜂的大规模饲养对成功地进行vitrata生物防治的实际意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
1.80
自引率
0.00%
发文量
8
审稿时长
15 weeks
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