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用大区对比法 ,对PB ROPEL和AB ROPEL防治棉花害虫的效果进行了研究。试验结果表明 :PB ROPEL和AB ROPEL对棉红铃虫、棉铃虫成虫干扰效果分别为 98.5 5 %～ 10 0 %和 99.7% ;AB ROPEL应用区蕾铃受害下降 0 .73 %～ 10 .2 0 % ;PB ROPEL控制虫害花效果为 5 3 .2 8%～ 87.79% ;控制青铃受害效果为 44.0 0 %～ 75 .3 1% ;控制单铃虫道效果为 5 1.6 1%～ 77.78% ;同时 ,2种药剂应用区害虫天敌总量较对照增加 1.3 3～ 1.98倍 ;化防次数减少 5～ 10次 ;防治总费用下降 9.72 %～ 5 2 .0 8% ;产量增加 16 .90 %～3 4 .85 %。
A comparative study was conducted on the effects of PB ROPEL and AB ROPEL on controlling cotton pests. The results showed that the interference effects of PB ROPEL and AB ROPEL on adult cotton bollworm and cotton bollworm were 98.5 5% ~ 100% and 99.7%, respectively. The damage of the boll bell in the application area of AB ROPEL decreased 0.73% ~ 10. %. The control effect of PB ROPEL on insects was 53.28% ~ 87.79%. The control effect of blue bell was 44.0 0% ~ 75.31%. The control effect on bollworm was 5 1.6 1% ~ 77.78%. At the same time, the total amount of natural enemies of pests in the two pesticide application areas increased by 1.3 3 ~ 1.98 times compared with the control; the number of chemical defense and prevention decreased by 5 ~ 10 times; the total cost of prevention and treatment decreased by 9.72% ~ 52.08%; the yield increased by 16.90% 3 4 .85%.