Evaluation of pyrethroids and organophosphates in insecticide mixtures for management of western corn rootworm larvae.,Pest Management Science

当前位置： X-MOL 学术 › Pest Manag. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Evaluation of pyrethroids and organophosphates in insecticide mixtures for management of western corn rootworm larvae.
Pest Management Science ( IF 3.8 ) Pub Date : 2020-06-05 , DOI: 10.1002/ps.5938
Coy R St Clair ₁ , Edmund J Norris ₂ , Kenneth E Masloski ₃ , Joel R Coats ₁ , Aaron J Gassmann ₁

Affiliation

The western corn rootworm is an economically important pest of corn. Management tactics include pyrethroid and organophosphate insecticides, which may be applied as a mixture to protect corn roots. The goal of our study was to characterize the effects of pyrethroids and organophosphates alone and in combination on larval corn rootworm mortality and injury to corn roots. We evaluated two insecticide combinations: tebupirimphos with β‐cyfluthrin and chlorethoxyfos with bifenthrin. Using a soil‐based, laboratory bioassay, we exposed larvae to five concentrations of the pyrethroid alone, the organophosphate alone, the combined formulation, and a water control. We calculated LC₅₀ values and co‐toxicity factors to determine synergism or antagonism between organophosphates and pyrethroids. We also measured adult emergence and root injury in a field experiment that tested tebupirimphos alone, β‐cyfluthrin alone, the combined formulation, and an untreated control.

中文翻译：

评价用于管理西部玉米根虫幼虫的杀虫剂混合物中的拟除虫菊酯和有机磷酸盐。

西部玉米根虫是玉米的重要经济害虫。管理策略包括拟除虫菊酯和有机磷酸酯杀虫剂，它们可以混合使用来保护玉米根。我们研究的目的是表征拟除虫菊酯和有机磷酸盐单独或组合对幼虫玉米根虫死亡率和对玉米根的伤害的作用。我们评估了两种杀虫剂组合：tebupirimphos和β-cyfluthrin以及chloroethoxyfos和bifenthrin。使用基于土壤的实验室生物测定法，我们将幼虫暴露于五种浓度的拟除虫菊酯，单独的有机磷酸盐，组合制剂和水质控制中。我们计算了LC ₅₀值和共毒性因子来确定有机磷酸酯和拟除虫菊酯之间的协同作用或拮抗作用。我们还在野外实验中测量了成年人的出苗和根部损伤，该实验单独测试了tebupirimphos，单独测试了β-氟氰菊酯，联合制剂和未治疗的对照。

更新日期：2020-06-05

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11