摘要
0%吡虫啉可湿性粉剂防治晚稻稻飞虱每公顷用75~300克,10天后防效为819~922%,比25%噻嗪酮可湿性粉剂每公顷用375克的防效高10%以上,20天的防效相近。防治小麦蚜虫与乐果乳油每公顷750毫升用量比较,1~5天内防效高,7天防效接近。
The result of field trial showed that imidacloprid was exellent active against rice planthopper(Liburnia sordescens)and wheat aphids (Macrosiphum auenae and Schizaphis graminum).For Liburnia sordescensat 10 days after treatmeat,the control effect of 10%imidacloprid WP at the dosage of 75~300 g/ha was 89.9~92.2%,and was 10% higher than those of 20% buprofezin WP at the dosage of 375g/ha.20 Days after spraying both treatments had similar effects.For wheat aphids at 1~5 days after treatmeat,the control effect of 10% imidacloprid WP at the dosage of 75~300 g/ha was higher than those of 80% dimethoate EC the dosage of 750ml/ha.7 Days after spraying both treatments had similar effects.
出处
《农药》
CAS
北大核心
1997年第11期37-38,共2页
Agrochemicals
关键词
吡虫啉
稻飞虱
蚜虫
药效试验
杀虫剂
imidacloprid,rice plant hopper,Liburnia sordescens,wheat aphids,control effect.