杨小舟蛾防治药剂筛选及飞防示范

Fungicide selection test and Application by aircraft for Micromelalopha troglodyte(Gratser)controlled

通过6种药剂共7个处理进行室内杨小舟蛾防治效果试验,筛选适合杨小舟蛾防治的新型药剂,并进行飞机防治示范。试验结果表明,药后5天,240g/L甲氧虫酰肼悬浮剂、10%虫螨腈悬浮剂、20%虫酰肼悬浮剂+5.7%甲维盐微乳剂3个处理防效分别为97.4%、100%、100%,20%虫酰肼悬浮剂、5.7%甲维盐微乳剂处理为89.7%、86.9%,25%灭幼脲悬浮剂、45%马拉硫磷乳油处理中防效为68.2%和71.5%。在济南市商河县使用虫酰肼+甲维盐药剂配方进行杨小舟蛾飞防示范,药后3d,虫口减退率达83.3%,叶片保存率在90%以上。

The control effect test was made with six pesticides and combinations in order to choose the appropriate pesticide for Micromelalopha troglodyte,then controlled and prevented with aerial application.Results of indoor test showed that 5days after treatment,the control effects of three combinations that Methoxyefnzide 24% SC、Chlorfenapyr 10% SC and Tebufenozide20% SC Emamectin benzoate 5.7%ME respectively were 97.4%、100% and100%.And the control effects of two combinations that Tebufenozide 20% SC and Emamectin benzoate 5.7% ME were 89.7% and 86.9% respectively 5days after treatment.The control effects that Chlorbenznron 25%SC and Malathion 45% EC respectively were 68.2%and 71.5%.Controlled Micromelalopha troglodyte with pesticides that Tebufenozide 20% SC Emamectin benzoate 5.7%ME by aerial application.The Population decline rate was 83.3% and leaves survival rate was over 90% 3days after applying pesticide.