Lethal and behavioral effects of selected novel pesticides on adults of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae)
Lethal and behavioral effects of selected novel pesticides on adults of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae)
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DOI：
10.1002/ps.3972
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发表时间：
2015-12-01
影响因子：
4.1
通讯作者：
Ruberson, John R.
中科院分区：
文献类型：
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作者：
Khan, Muhammad Ashraf;Khan, Hizbullah;Ruberson, John R.
农业系统中对减少化学品投入的需求日益增长，这要求更有效地将生物控制与农药结合起来。赤眼蜂赤眼蜂是鳞翅目害虫的重要天敌，在生物防治中有重要的应用。在T.对19种农药的急性毒性进行了研究在田间推荐剂量下，氟虫腈、呋虫胺、乙基多杀菌素、氟虫腈与对照相比，tolfenadrid和阿维菌素在暴露于处理的棉花叶片的24小时内诱导了近100%的成虫死亡率。啶虫脒也有毒性，但毒性明显低于前者。其他农药无明显毒性作用。在无毒材料中，只有草铵膦的毒性在超过推荐剂量2 - 4倍时增加。寄生蜂的觅食行为的影响，只有tolfenadrid之间的tested.CONCLUSIONMost新的农药，除了几种杀虫剂，表现出很少或没有急性毒性的寄生蜂。寄生蜂的觅食行为只受tolfenadrid，表明寄生蜂可以成功地饲料与大多数农药处理的鸡蛋评价。因此，这些农药中的许多可能与赤眼蜂具有良好的相容性。(c)2015年化学工业协会
BACKGROUNDGrowing demand for reduced chemical inputs in agricultural systems requires more effective integration of biological control with pesticides. The egg parasitoid Trichogramma pretiosum Riley is an important natural enemy of lepidopteran pests, used in biological control. In an investigation of the interaction of T. pretiosum and pesticides, we studied the acute toxicity of 19 pesticides (insecticides, miticides, fungicides and herbicides) to adult parasitoids and the behavioral effects of 11 pesticides on foraging parasitoid females, including host antennation, stinging and host feeding.RESULTSAt recommended field doses, fipronil, dinotefuran, spinetoram, tolfenpyrad and abamectin induced nearly 100% adult mortality within 24h of exposure to treated cotton leaves by comparison with controls. Acetamiprid was also toxic, but significantly less so than the former materials. The other pesticides had no significant toxic effects. Only glufosinate ammonium exhibited increased toxicity among the non-toxic materials when increased two- or fourfold over recommended rates. The foraging behavior of parasitoids was affected only by tolfenpyrad among the materials tested.CONCLUSIONMost novel pesticides, except for several insecticides, exhibited little to no acute toxicity to the parasitoid. Parasitoid foraging behavior was only affected by tolfenpyrad, indicating that parasitoids could successfully forage on eggs treated with most pesticides evaluated. Therefore, many of these pesticides may have good compatibility with Trichogramma. (c) 2015 Society of Chemical Industry