茚虫威水分散粒剂防治甘蓝小菜蛾效果研究

The Control Eeffect of Indoxacarb Water Dispersible Granule on Cabbage Plutella xylostella

本试验比较了不同浓度茚虫威水分散粒剂对甘蓝小菜蛾的防治效果。结果表明,30%茚虫威水分散粒剂在水中分散性良好,制剂用量选择6g/667m^2、9g/667m^2时,施药3d后防治效果高达96%以上;且在该浓度下防治甘蓝小菜蛾速效性和持效性均良好,施药后7d防治效果高达99%以上。

This test was analyzed the control effect of different concentration indoxair water dispersible granule on Plutella xylostella. The results showed that： 30% indoxair water dispersible granule had good dispersion in water, when this agent was used at 6g/667m^2 and 9g/667m^2, it got the high control effect of 96% after 3 days. And the control effect of indoxair water dispersible granule on Wufella xjiostella had good readily availability and continuity, it got high control effect, which was up to 99%, after 7 days for implementing.