摘要
在第二代梨木虱若虫期，用１０％吡虫啉ＷＰ１００００、８０００、５０００、３０００倍液喷雾防治一次。药后１天的校正防效分别为８９４％、９２４％、９４０％和９３６％；药后３天的校正防效分别为８６５％、９１５％、９５７％和９５１％；药后７天的校正防效分别为９２６％、９４９％、９６８％和９８０％；药后１４天的校正防效分别为７７５％、８６８％、９２２％和９６３％，均明显高于目前常用农药的防效。且对植物安全，并对害虫天敌及其有益生物无不良影响。
The results of field trial indicated that 10% imidacloprid WP had a good effect to control Psylla chinensis Yang et Li at nymphal stage of secondary generation.The control efficacy after one day of spray at 3000 times ,5000 times,8000 times and 10000 times was 93.6%,94.0%,92.4% and 89.4%,after three days of spray was 95.1%,95.7%,91.5% and 86.5%, after seven days of spray was 98.0%,96.8%,94.9% and 92.6%,after fourteen days of spray was 96.3%,92,2%,86.8% and 77.5%,respectively.The control efficacy was better than those of conventional pesticides.
出处
《农药》
CAS
北大核心
1998年第4期25-26,共2页
Agrochemicals
关键词
吡虫啉
梨木虱
可湿性粉剂
梨树
杀虫剂
imidacloprid,Psylla chinensis Yang et Li,control effect.
