报道了梅岭霉素对十种昆虫螨类的生物活性，其中对柑桔全爪螨、柑桔锈壁虱、棉红蜘蛛、棉蚜、萝卜蚜具有高的生物活性，杀虫作用方式主要表现为触杀作用，其毒力略高于阿弗麦菌素（Ａｖｅｒｍｅｃｔｉｎｓ）．对这５种螨虫的ＬＣ＿（５０）依次是０．０４６ｍｇ／Ｌ，０．００４ｍｇ／Ｌ，０．０３９ｍｇ／Ｌ，０．１２６ｍｇ／Ｌ和０．１３６ｍｇ／Ｌ，对家蚕具有较强的胃毒作用，ＬＤ＿（５０）为０．０７３ｍｇ／ｋｇ，对葡萄十星叶虫和菜青虫具有一定的胃毒生物活性，但棉红铃虫和二十八星瓢虫接触梅岭霉素表现不敏感。 The biological activities of meilingmycin against ten kinds of insect mites were reported. Among them, the activity of metsmycins on mites, citrus red mites, cotton spider mites, cotton aphids and radish aphids were high, Showed as contact action, its virulence is slightly higher than the avermectin (Avermectins). The LC 50 of the five species of mites were 0.046 mg / L, 0.004 mg / L, 0.039 mg / L, 0.126 mg / L and 0.136 mg / L, respectively. LD 50 was 0.073 mg / kg, and had certain gastric toxicological activity on S. tenuiflora and Pieris rapae. However, insecticidal activities of M. gossypii and M. elegans were not sensitive to meilingmycin .