广西桂平市荔枝木毒蛾的防治研究
South China Fruits(2018)
Abstract
通过室内继代饲养观察和田间调查研究木毒蛾在广西荔枝上的发生为害规律,并采用喷雾法对木毒蛾进行室内毒效及田间防治试验.结果表明,木毒蛾在广西一年发生1代,幼虫7龄,幼虫期50~60 d,以卵越冬.施药24 h后,20%甲氰菊酯乳油、2.5%敌杀死乳油、4.5%高效氯氟氰菊酯乳油对木毒蛾的防效大于90%,100 g/L联苯菊酯乳油、10%虫螨腈悬浮剂的防效大于80%,40%辛硫磷乳油、480 g/L毒死蜱乳油和60 g/L乙基多杀霉素悬浮剂防效小于80%.因此20%甲氰菊酯乳油、2.5%敌杀死乳油、4.5%高效氯氟氰菊酯乳油可作为荔枝木毒蛾暴发时防治的首选药剂,40%辛硫磷乳油、480 g/L毒死蜱乳油和10%虫螨腈悬浮剂可作为备选药剂.
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