5甲维盐对花椰菜小菜蛾田间药效试验

摘要

为更高效防治花椰菜小菜蛾,进行了5%甲维盐水分散粒剂对花椰菜小菜蛾的田间防治试验.试验结果表明,5%甲维盐水分散粒剂对花椰菜小菜蛾有良好的防治效果,其中5%甲维盐水分散粒剂1万~1.5万倍液药后3~11 d的防效均在85%以上,具有良好的速效性,且对花椰菜无药害,可大面积推广使用.%In the paper, we studied the control effect of 5% emamectin benzoate water dispersible granules (WG) on Plutella xylostella of cauliflower in fields for the better and more effective control of P. xylostella. The results showed that, 5% emamectin benzoate WG with the dilution times from ten thousand to fifteen thousand had better and faster effect on controlling P. xylostella of cauliflower, with the control efficiency above 85% after using the pesticide 3-11 days, and 5%emamectin benzoate WG with the dilution times from ten thousand to fifteen thousand could be promoted in large scale in cauliflower production.