45%毒死蜱EC不同剂量对水稻二化螟的防治效果  

Study on Different Dosage of 45% Chlorphrifos EC on Control Effect of Chilo suppressalis Waleker

作　　者：石扬娟 

机构地区：[1]安徽省六安市植保站,安徽六安237001

出　　处：《农业灾害研究》2012年第1期21-22,共2页Journal of Agricultural Catastrophology

摘　　要：[目的]筛选45%毒死蜱EC防治水稻二化螟的最佳剂量。[方法]以45%毒死蜱EC750、975、1200ml/hm2为处理,以清水处理为空白对照,调查水稻被害情况,计算各处理防效。[结果]45%毒死蜱EC在施用剂量不低于975ml/hm2时,防治效果较好。[结论]45%毒死蜱EC是防治水稻二化螟的较好药剂,对水稻和天敌较安全。[Objective] The aim was to select the optimal dosage of 45% chlor- phrifos EC on control effect of Chilo suppressalis Waleker. [Method] The 750,975,1 200 ml/hm2 dosage of 45% chlorphrifos EC were designed as treatments, and water was regarded as nor- mal blank control. The harmfulness condition of rice was investigated, and the control effect was calculated. [Result] The results indicated that the control effect was good when the application dosage of 45% chlorphrifos EC was not less than 975 ml/hrn2. [Conclusion] 45% ehlorphrifos EC was a good bactericide for control of C. suppressalis Waleker, and its safe to rice and natural enemies.

关 键 词：45%毒死蜱EC 水稻二化螟 防治效果 

分 类 号：S435.112.1[农业科学—农业昆虫与害虫防治]