【摘要】 阿维菌素及其复配剂是被广泛使用的农用杀虫剂之一，为了明确微量阿维菌素类农药对家蚕结茧的影响，采用食下毒叶法评价了4种常用阿维菌素复配剂对家蚕结茧性能的影响。结果表明，阿维菌素及其复配剂药液浓度大于10^-3mg/L连续饲喂家蚕4龄起蚕，可使其中毒后陆续地全部死亡；在低于10^-4mg/L的剂量下，阿维菌素及其复配剂可使家蚕的结茧率显著降低、死笼率显著增高，所结蚕茧的全茧量、茧层量、茧层率显著低于对照处理。因此，微量阿维菌素类农药对家蚕的结茧性能存在显著的影响，桑园及周边作物应禁止使用含阿维菌素类的农药。更多还原

【Abstract】 Abamectin and its mixtures are widely used agricultural insecticides. To clarify their effects on the cocooning performance of the silkworm（Bombyx mori）,the toxicity of four abamectin based insecticides against silkworms was determined by feeding larvae with contaminated mulberry leaves.The results showed that silkworms were poisoned and died when the concentration of abamectin and its mixtures was greater than 10^-3mg/L and continuously fed to 4 th instar larvae. At doses below 10^-4mg/L,abamectin and its mixtures significantly reduced the cocooning rate and increased the rate of dead larvae in cocoons. Cocoon weight,cocoon shell weight,and cocoon shell rate were significantly lower than those in the control. Therefore,even low doses of abamectin insecticides significantly impact silkworm cocooning performance,and the use of pesticides containing abamectin in mulberry fields and surrounding crops should be prohibited.更多还原