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1.8%阿维菌素、5%氟铃脲乳油、30%乙酰甲胺磷乳油、1.1%甲氨基阿维菌素四种生物农药对棉蚜均有较好的防效。药后4 d,30%乙酰甲胺磷乳油的防效为83.5%,1.8%阿维菌素为75%,5%氟铃脲乳油和1.1%甲氨基阿维菌素的防效分别为68.4%、68%。药后12 d防效均在90%以上。从速效性、持续性及对天敌的影响等方面总体考虑:5%氟铃脲乳油和30%乙酰甲胺磷乳油是防治棉蚜的较理想的药剂,可以交替使用。
Avermectin 1.8%, 5% hexaflumuron EC, 30% acephate EC, 1.1% avermectin four biological pesticides have a good control effect on cotton aphid. After 4 days of treatment, the control effect of 30% acephate EC was 83.5%, 1.8% abamectin 75%, the control efficacy of 5% hexaflumuron EC and 1.1% methylacrimin was 68.4 %, 68%. 12 d after the anti-drug efficacy in more than 90%. From the point of view of quick response, sustainability and effects on natural enemies, 5% hexaflumuron EC and 30% acephate EC are the ideal agents for controlling cotton aphids and can be used interchangeably.