快灵和米螨防治烟青虫的田间药效试验  

Field Efficacy Trails after Treatments of Kuailing and Miman aga inst Heliothis Assulta

作　　者：吴廷全[1] 雷艳丽[1] 周本国[1] 高正良[1] 

机构地区：[1]安徽省农业科学院烟草研究所,凤阳233100

出　　处：《安徽农业科学》2003年第2期285-285,共1页Journal of Anhui Agricultural Sciences

摘　　要：试验结果表明　 :,快灵 90 %可湿性粉剂 30 0 0倍液在施药后 1、3、8天对烟青虫的防治效果明显高于米螨 2 4 %悬浮剂 1 50 0倍液 ;在施药后 3天防效达到最大(1 0 0 % ) ;在施药后 8天药效仍接近 90 % ;施药后 1 6天 2种药剂对烟青虫的防效相当 ,均在 70 %左右。米螨 2 4 %悬浮剂 1 50 0倍液在施药后 1、3、8、1 6天 ,防效呈上升趋势 ,施药后 8天达到最大(74.46% )。The results of field efficacy trails showed that the e fficiencies of 1, 3, 8 days after treatment of Kuailing (90%WP) at the concentra tion of 1∶3?000 a gainst Heliothis assulta was better than Miman's (24%FF) at the concentration of 1∶1?500 and the efficacy of 3 days was up to best (100%) and the efficacy of 8 d ays was similar to 90%. The efficacy of 16 days after treatment of Kuailing (90% WP) being equal to Miman's (24%FF) was about 70%. The efficiency of 1,3,8,16 days after treatmen t o f Miman (24%FF) at the concentration of 1∶1?500 was continually increasing and the efficacy of 8 days was up to best (74.46%).

关 键 词：烟青虫 烟草害虫 快灵 米螨 田间药效试验 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治] S482.3[农业科学—植物保护]