25％吡蚜·噻嗪酮悬浮剂防治水稻稻飞虱药效试验

摘要

湖南和江苏两地药效试验结果表明,在低龄若虫发生期,25％吡蚜·噻嗪酮悬浮剂用量300～600g/hm2,对水稻灰飞虱、白背飞虱、褐飞虱有较好的控制作用,持效期长达16d,且对水稻生长无不良影响.%The results of efficacy trials in Hunan and Jiangsu showed that pymetrozine + buprofezin 25% SC at the dosage of 300-600 g/hm2 had a good effect against rice planthoppers, white backed planthoppers and brown planthoppers during the young nymph stage. It had the persisting efficacy up to 16 days and no adverse effect on the rice growth.