6种杀虫剂防治豇豆豆荚螟的药效试验

Efficacy test of six insecticides on the control of Etiella zinckenella

进行6种杀虫剂防治豇豆豆荚螟的药效试验,结果表明:20%氯虫苯甲酰胺SC 5 000倍液与6%乙基多杀菌素SC 1 500倍液对豆荚螟有较好的防治效果,20%氯虫苯甲酰胺SC 5000倍液药后7、14、21 d的防效均在95%以上;6%乙基多杀菌素SC 1 500倍液药后7、14、21 d的防效均在83%以上。2.2%甲氨基阿维菌素苯甲酸盐ME 1 500倍液、1.8%阿维菌素EC 1 000倍液、18%杀虫双AS 180倍液3种药剂的防效为48%～60%,防治效果不理想。48%毒死蜱EC 900倍液防效极差。

The efficacy test of six insecticides on the control of Etiella zinckenella was carried out in this study,The results showed that 5 000 times dilution of 20% Chlorantraniliprole SC and 1 500 times dilution of 6% Spinetoram SC had better controling efficiency on Etiella zinckenella.The controling efficiencies of 5 000 times dilution of 20% Chlorantraniliprole SC were all above 95% and 1 500 times dilution of 6% Spinetoram SC were all above 83% after pesticide application for 7,14,21 days.The controling efficiencies of 1 500 times dilution of 2.2% emamectin benzoate ME,1 000 times dilution of 1.8% Avermectin EC and 180 times dilution of 18% bisultap AS were 48%-60%.Their controling efficiency was not ideal.The controling efficiency of 900 times dilution of 48% chlorpyrifos EC was the poorest.