6种药剂防治毛豆豆荚螟的田间药效试验

试验比较了氯虫苯甲酰胺200g/L悬浮剂、氟虫双酰胺20%水分散粒剂等6种药剂对毛豆豆荚螟的田间防治效果。结果表明,氯虫苯甲酰胺200g/L悬浮剂30a.i g/hm2对豆荚螟的防治效果最好,于毛豆初花期施药1次,其防效可达98.21%,其次,氟虫双酰胺20%水分散粒剂45a.i g/hm2的防效93.01%,茚虫威150g/L悬浮剂45a.i g/hm2的防效为87.10%,为第三,甲维盐2.2%乳油16.5a.i g/hm2、高效氯氰菊酯4.5%乳油33.75a.i g/hm2、阿维菌素1.8%乳油6.75a.i g/hm2、13.5a.i g/hm2的防效在81.80%以下,防效一般。

Field Efficacy Test of 6 Insecticides to Control Soybean Pod Borer

Field efficacy tests of 6 insecticides to control soybean pod borer （chlorantraniliprole 200g/L SC, Flubendiamide 20% WG, etc., ） were conducted and the performance was com- pared with each other. The results showed that the control efficiency of chlorantraniliprole 200g/L SC at 30a.i g/hm2 had the highest control rate of 98.21% following subsequently by Flubendi- amide 20% WG at 45a.i g/hm2 with the control rate of 93.01% and indoxacarb 150g/L SC at 45a.i g/hm2 with the control rate of 87.10%. The individual treatment of emamectin 2.2% EC at 16.5a.i g/hm2, beta cypermethrin 4.5% EC at 33.75a.i g/hm2 and abamectin 1.8% EC at 6.75a.i g/hm2 and 13.5a.i g/hm2 were showed the lowest control rate of less than 81.80%.