卵荚
- 网络ootheca;egg pod
卵荚-
浙江蜚蠊卵荚寄生蜂的调查研究
Studies on the Oothecal Parasites of Cockroaches in Zhejiang Province
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平均室温27.5℃时，可在0&20天龄卵荚中完成寄生。
In the 0 & 20 days when average room-temperature is 27.5 ℃ .
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随着美洲大蠊卵荚历期的增加，啊氏啮小蜂发育历期逐渐缩短。
Development period of the parasitoids was shortened when hostal egg age rised .
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首先，德国小蠊在生殖结构上，它的每个卵荚含有的卵比其它物种要多得多。
First , the German cockroach has a larger number of eggs per capsule than the other species that infest structures .
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结果：用含有0.125%蟑螂绝育剂的毒饵饲喂德国小蠊若虫，其成虫期和雌虫卵荚形成期与对照组相比略微滞后，其卵荚中无若虫孵出；
Results : Feed the larvae of Blattella germanica with 0.125 % cockroach sterilization agent bait , there was no larvae incubated from ovums .