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.
出处
《农业灾害研究》
2012年第1期21-22,共2页
Journal of Agricultural Catastrophology
关键词
45%毒死蜱EC
水稻二化螟
防治效果
45% chlorphrifos EC
Chilo suppressalis Waleker
Control ef-fect
