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近年来一些棉区开始使用拟除虫菊酯类杀虫剂防虫。但它对植食性害螨杀伤较少,而对其天敌毒性很高,因此必然促进螨类的猖獗。 本文试验的6个非有机磷类型选择性杀螨剂,除三氯杀螨醇外,其它5个我国棉区还很少使用。1984年2至4月份,以室内饲养的棉红蜘蛛为试材,测定了这6个杀螨剂对成螨的毒力及其杀卵活性。对其中毒效突出的三环锡,还与常用杀螨剂三氯杀螨醇进行了温室中防治棉红蜘蛛的残效比较。
In recent years, some cotton areas began to use pyrethroid insecticides to prevent insects. However, it is less harmful to phytophagous pests and has a high toxicity to its natural enemies, so it is inevitable to promote the rampant of mites. Six non-organic phosphorus selective acaricides tested in this paper, in addition to dicofol, the other five cotton areas are still rarely used. From February to April 1984, indoor red spider mites were used as test materials to determine the toxicity of the six acaricides to adult mites and their ovicidal activity. Toxicity of tricyclic tin prominent among them, but also with the commonly used acaricide dicofol in the greenhouse to control cotton spider residue comparison.