Power Nancy, Ganjisaffar Fatemeh, Perring Thomas M
Department of Entomology, University of California, 900 University Ave., Riverside, CA 92521, USA.
Insects. 2020 Jul 10;11(7):432. doi: 10.3390/insects11070432.
The thelytokous egg parasitoid Triapitsyn and Power (Hymenoptera: Encyrtidae) was recovered from brassica plant debris in Pakistan in an effort to find a biological control agent of the invasive bug (Burmeister) (Heteroptera: Pentatomidae) in North America. As the first step in determining the overall host range of this parasitoid, adult females were exposed to the eggs of eight alternate pentatomid host species, two non-pentatomid heteropterans, and two lepidopterans, in choice and no-choice tests. Although was more successful on than the other species in terms of the number of the eggs laid, the number of emerged progeny, and the developmental time of the progeny, it was able to reproduce on all of the alternate hosts except for one of the lepidopterans, whose eggs appeared too small for this parasitoid. The results show to be a generalist parasitoid species with a preference for . The results also indicate that there is a linear relationship between the mean body length of females and the mean host egg weight with an adjusted R 2 of 0.90. The implications of this study on the release of for the control of are discussed.
孤雌产雌卵寄生蜂Triapitsyn和Power（膜翅目：跳小蜂科）是在巴基斯坦的芸苔属植物残体中发现的，目的是寻找一种能控制北美洲入侵害虫（Burmeister）（半翅目：蝽科）的生物防治剂。作为确定这种寄生蜂总体寄主范围的第一步，在选择性和非选择性试验中，将成年雌蜂暴露于8种替代蝽科寄主物种的卵、2种非蝽科半翅目昆虫的卵和2种鳞翅目昆虫的卵中。尽管就产卵数量、羽化后代数量和后代发育时间而言，Triapitsyn在某种蝽上比在其他物种上更成功，但除了一种鳞翅目昆虫的卵对该寄生蜂来说似乎太小外，它能够在所有替代寄主上繁殖。结果表明Triapitsyn是一种广食性寄生蜂物种，偏好某种蝽。结果还表明，Triapitsyn雌蜂的平均体长与寄主卵的平均重量之间存在线性关系，调整后的R²为0.90。讨论了这项关于释放Triapitsyn用于控制某种蝽的研究的意义。
