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[目的]试验研究5种杀虫剂不同剂量对稻水象甲幼虫的防治效果,筛选5%丁硫克百威颗粒剂的替代药剂。[方法]进行盆栽、田间小区试验。[结果]20%呋虫胺可溶粒剂90.00、120.00、150.00 g a.i./hm~2,0.5%噻虫胺颗粒剂225.00、300.00 g a.i./hm~2,4%吡虫·毒死蜱颗粒剂2400.00 g a.i./hm~2,50%氟啶虫胺腈水分散粒剂150.00、187.50 g a.i./hm~2处理防控稻水象甲幼虫,药后15 d防效均在70%以上。[结论]20%呋虫胺可溶粒剂、0.5%噻虫胺颗粒剂、50%氟啶虫胺腈水分散粒剂、4%吡虫·毒死蜱颗粒剂可以作为5%丁硫克百威颗粒剂的替代药剂,防控稻水象甲幼虫,建议在生产中交替使用。
[Objective] The research aimed to study the control effect of different doses of 5 kinds of insecticides on the water larvae of Asio scrophulariaceae, and to select the alternative agent of 5% D-thiogalactam granules. [Method] Pot experiment and field plot were conducted. [Results] 20% Dinotebura soluble granules 90.00,120.00,150.00 g ai / hm ~ 2,0.5% Clothianidin granules 225.00,300.00 g ai / hm ~ 2,4% g ai / hm ~ 2, 50% floxadine water dispersible granules 150.00,187.50 g ai / hm ~ 2 treatment control the water weevil larvae, 15 d after the drug control effect in more than 70%. [Conclusion] Granules of 20% dinotefuran soluble granules, 0.5% clothianidin granules, 50% nitrofurantoin water dispersible granules and 4% imidacloprid · chlorpyrifos granules could be used as 5% Granules of alternative agents, prevention and control of rice water weevil larvae, it is recommended alternate use in the production.