【摘要】 用11种农药对温室自粉虱(Trialeurodes vaporariorum Westw.)进行了室内毒力测定。结果表明:拟除虫菊酯类杀虫剂、灭螨猛对温室白粉虱各虫态毒力均高,并且随虫龄的增加,白粉虱的抗药性增强。稻丰散、乐果、氧化乐果对温室白粉虱若虫毒力尚可,但对其它虫态效果差。马拉硫磷、二嗪农、敌敌畏、洗衣粉除对一龄若虫有一定效果外,对其它虫态毒力极低。北京地区温室白粉虱对某些药剂已出现明显的抗药性。更多还原

【Abstract】 Laboratory studies were carried out in Beijing from 1983 to 1984,to assess the toxicity of 11 pesticides to different instars and stages of the glasshouse whitefly Trialeurodes vaporariorum Westw.. Laboratory tests showed that deltamethrin, fenvalerate, cypermethrin and quinomethionate were highly toxic to glasshouse whitefly,phenthoate,dimethoate and omethoate were moderately toxic, other insecticides with low toxicity, except some effect on first instar nymphs.As the instar increased,the resistance of nymphs to insecticides rose gradually. When compared the first instar nymphs of Beijing strain of glasshouse whitefly with a susceptible strain of Kent, England, 4 organophosphorous malathion, dichlorvos,diazinon,dimethoate were tolerant toward the scale,the highest resistance factor was up to 8.91. It was apparent that glasshouse whitefly had tolerated to some insecticides in Beijing.更多还原