4种药剂对螺旋粉虱的田间药效试验

Effect of Four Insecticides on Control of Aleurodicus disperses in Field

选用20%烯啶虫胺乳油、25%吡蚜酮可湿性粉剂、20%丁硫克百威乳油、25%吡虫啉·异丙威(吡虫啉50g/kg、异丙威200g/kg)可湿性粉剂4种杀虫剂对螺旋粉虱进行田间药效试验。结果表明:25%吡虫啉·异丙威C的防效最好,且具有良好的速效性和持久性,是防治螺旋粉虱的理想药剂;其次为20%烯啶虫胺乳油、200g/L丁硫克百威乳油,25%吡蚜酮可湿性粉剂对于螺旋粉虱成虫的防效最差,不适合防治螺旋粉虱。

The control effects of the four insecticides on Aleurodicus disperses in field were tested respectively in 2009. The results showed that imidacloprid-isoprocorb 25% WP was the best effective pesticide for controlling A. disperses with the quick and persistent action, followed by nitenpyram 20% EC and carbosulfan 200 g/L EC. Pymetrozine 25% WP was unsuitable insecticide for controlling A. disperses.