Chrysoperla externa and Coleomegilla quadrifasciata are important biological control agents in peach orchards. However, orchard management with these predatory insects is viable only by using selective agrochemicals. The objective of this study is to evaluate the toxicity of nine agrochemicals used in peach orchards in larval and adult stages of the C. externa and C. quadrifasciata in laboratory conditions. The bioassays followed the methodologies proposed by the International Organization for Biological and Integrated Control (IOBC). Larvae and adults of C. externa and C. quadrifasciata were exposed to the dry residues of these products. Lethal and sublethal effects were evaluated in bioassays with the larval and adult stages of both predators. The agrochemicals were classified according to the IOBC guidelines. The insecticide chlorantraniliprole was harmless (class 1) to the larval stage of C. externa and C. quadrifasciata. Azadirachtin, copper 25% + calcium 10%, and deltamethrin were harmless to the adult stage of both insect species. The organophosphates fenitrothion and malathion were harmful (class 4) to both species in the larval and adult stages and should not be used in peach orchards. Therefore, this study demonstrates the importance of toxicity and the lethal and sublethal effects of these agrochemicals to better determine their compatibility with IPM in peach production.

中文翻译：

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九种农药对桃园中活跃的两种通体捕食者的幼虫和成虫的非目标毒性。

在桃园中，外部Chrysoperla externa和Coleomegilla quadrifasciata是重要的生物防治剂。然而，仅通过使用选择性农用化学品对这些掠食性昆虫进行果园管理是可行的。这项研究的目的是评估在实验室条件下桃果园幼虫和成年阶段C. externa和C. quadrifasciata中使用的九种农药的毒性。生物测定法遵循国际生物和综合控制组织（IOBC）提出的方法。C. externa和C. quadrifasciata的幼虫和成虫暴露于这些产品的干残留物中。在生物测定中评估了两种捕食者的幼虫期和成年期的致死和亚致死作用。根据IOBC指南对农用化学品进行了分类。杀虫剂四氢苯丙胺杀虫剂（Cantraniliprole）对C. externa和C. quadrifasciata的幼虫期无害（1类）。印za素，25％的铜+ 10％的钙和溴氰菊酯对两种昆虫的成虫期无害。有机磷杀nitro硫磷和马拉硫磷对幼虫和成年期的两个物种均有害（第4类），不应在桃园中使用。因此，这项研究证明了这些农药的毒性以及致命和亚致死作用的重要性，以便更好地确定它们与桃生产中与IPM的相容性。有机磷杀nitro硫磷和马拉硫磷对幼虫和成年期的两个物种均有害（第4类），不应在桃园中使用。因此，这项研究证明了这些农药的毒性以及致命和亚致死作用的重要性，以便更好地确定它们与桃生产中与IPM的相容性。有机磷杀nitro硫磷和马拉硫磷对幼虫和成年期的两个物种均有害（第4类），不应在桃园中使用。因此，这项研究证明了这些农药的毒性以及致命和亚致死作用的重要性，以便更好地确定它们与桃生产中与IPM的相容性。