25%吡蚜酮WP防治灰飞虱的效果评价

Control efficacy of small brown plant hopper with pymetrozine

以常规药剂吡虫啉、噻嗪酮为对照药剂,对新型杀虫剂吡蚜酮不同剂量防治麦田灰飞虱的效果进行了试验。结果表明:每667m^2用25%吡蚜酮 WP 20g,即可达到防治灰飞虱成虫和若虫的很好效果,尤其对灰飞虱成虫效果更佳,药后1d 即达到控制危害的效果,高效可一直维持到14d 以上,是防治灰飞虱、控制条纹叶枯病蔓延的理想药剂。

We tested the control efficacy of small brown plant hopper with pymetrozine in the field.The result indicated that both the adult and the nymphal of small brown planthopper could be controlled by using pymetrozine 25 % wp with dosage of 20g/666.7m^2 . Especially to the adult of small brown planthopper, the pymetrozine possessed more persistent, rapid efficiency than ordinary pesticide, such as imidaeloprid and buprofezin. It is the perfect pesticide for control small brown plant hopper.