化学防治蛴螬低毒农药筛选

Screening of Low-toxic Pesticide for Chemical Control Grubs

为了筛选出防治蛴螬效果较好的低毒药剂,对5%二嗪磷颗粒剂、70%噻虫嗪种子处理可分散粉剂、70%吡虫啉水分散粒剂、5%阿维菌素乳油、40%辛硫磷乳油这5种药剂施用后的植株防效和虫口减退率进行比较分析。结果表明:植株防效和虫口减退率均为5%二嗪磷颗粒剂、70%吡虫啉水分散粒剂>5%阿维菌素乳油、40%辛硫磷乳油>70%噻虫嗪种子处理可分散粉剂,且5%二嗪磷颗粒剂的防治效果与对照药剂的防治效果差异达到极显著。建议生产上推广应用5%二嗪磷颗粒剂代替其他高毒农药防治蛴螬。

In order to screen out the effective low-toxic pesticide to control grubs, the efficacy of five low-toxic pesticides were com- pared. The five low-toxic pesticides were 5% diazinon GR, 70% thiamethoxam ZF, 70% imidacloprid WG, 5% abameetin EC and 40% phoxim EC. The results indicated that, both the efficiency of plant protection and the decreasing rate of insect showed similar results： Thevalue of 5% diazinon GR and 70% imidacloprid WG〉the value of 5% abamectin EC and 40% phoxim EC〉the value of 70% thi- amethoxam ZF. The difference of efficacy of 5% diazinon GR compared to other pesticides was remarkable. It was suggested that 5% di- azinon GR be promoted in production instead of other high-toxic pesticides to control grubs .