几种药剂对绿豆象的田间防效

选用40%辛硫磷乳油、77.5%敌敌畏乳油、25%高氯?马乳油、20%甲氰菊酯乳油、40%氯虫?噻虫嗪水分散粒剂、5%氯虫苯甲酰胺悬浮剂等6种药剂, 通过浸种、浸种+喷雾、喷雾等不同的处理, 筛选小豆田间绿豆象防治的最佳药剂及施用方法。结果表明, 施用药剂均能促进小豆产量提高, 并对绿豆象有不同防效; 相同药剂不同的施用方法对绿豆象的防效不同, 防治效果依次为浸种+喷雾>喷雾>浸种; 40%辛硫磷乳油500倍液浸种+500倍液喷雾防治绿豆象的效果最好, 防效达95.84%。

Control efficacy of several insecticides on Callosobruchus chinensis L. in the fields

Field control efficacies of 40% phoxim EC, 77.5% dichlorvos EC, 25% beta-cypermethrin+malathion EC, 20% fenpropathrin EC, 40% chlorantraniliprole + thiamethoxam WG and 5% chloranthraniliprole SC on Callosobruchus chinensis L. were determined in adzuki bean by seed soaking, spraying, and soaking + spraying. The results showed that applications of insecticides can improve yield of adzuki bean and have control efficacy on C. chinensis. The control efficacy was different by different application methods for the same insecticide. The control efficacy was ranked as: seed soaking + spraying > spraying > soaking seed. Control effect of seed soaking and spraying with 500 times 40% phoxim EC was the highest, with the efficacy of 95.4%.