几种防治水稻褐飞虱药剂的药效比较试验

摘要

对防治水稻褐飞虱的几种主要药荆进行了田间药效比较试验,结果表明,3%甲维盐WG、25%克泰WG、25%飞电WP及80%氟虫腈WG对褐飞虱具有较为理想的防治效果,且持效性好.另外.25%优乐得WP时褐飞虱的药效慢,但持效性好.40%丙溴磷EC、25%吡虫啉WP及48%毒死蜱EC防治褐飞 虱的效果相对较差.%In this paper,the comparison experiment of some insecticides acting on brown planthopper,Nilaparvata lugens(Stal)was put in practice.The results showed that 3% Methylamino abamectin benzoate WG,25% Thiamethoxam WG,25% Pymetrozin WP,80% Fipronil WG and 25% Buprofezin WP all had a perfect control effect on brown planthopper.comparing to 400% Profenofos EC,25% lmidacloprid WP and 48% Chlorpyrifos EC.