Sowmya M, B. O. S., K. Subaharan, Vinay Kumar T M, Soundarya Y M, V. R., Navik O, Amala U, Sushil S N
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引用次数: 0
摘要
寄生在事实性寄主米蛾 Corcyra cephalonica (Stainton) （鳞翅目：俾拉尔科）上的 Trichogramma chilonis Ishii（膜翅目：Trichogrammatidae）是鳞翅目害虫的卵寄生虫。本研究评估了矢车菊、蒌蒿、甜罗勒和印楝油等精油对鳞翅目害虫的毒性和生物特性，如寄生性和萌发性。在测试的环氧乙烷中，安米对褐飞虱的毒性最高（LC50 0.316 ppm），其次是槟榔（LC50 0.567 ppm）。在亚致死剂量下，它们会影响 T. chilonis 的寄生和成虫出现。而罗勒草和印楝油在亚致死剂量下对 T. chilonis 相对安全。这项研究强调，在释放经环氧乙烷处理过的基质中的褐飞虱之前，需要保持一段等待期。
Impact of Essential Oils on Biological Traits of Trichogramma chilonis Ishii
Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) reared on factious host rice moth Corcyra cephalonica (Stainton) (Lepidoptera: Pyralidae) is an egg parasitoid on lepidopteran pests. The essential oils, viz., ajowan Trachyspermum ammi, betel Piper betle, and sweet basil Ocimum basilicum and neem oil were assessed for their toxicity and biological traits like parasitism and emergence on T. chilonis. Among the EOs tested, T. ammi caused highest toxicity to T. chilonis (LC50 0.316 ppm) followed by P. betle (LC50 0.567 ppm). At sublethal dose, they had an impact on parasitism and adult emergence of T. chilonis. Whilst O. basilicum and neem oil were relatively safe at sublethal doses to T. chilonis. This study highlights the need to maintain a waiting period before the release of T. chilonis in EOs treated substrates.
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