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毒死蜱是美国陶氏化学公司生产的有机磷杀虫剂,具有触杀、胃毒、薰蒸作用。1987年我们进行了毒死蜱防治苹果主要害虫的药效试验,主要探明防治效果和经济有效的用药量,为生产应用提供依据。一、试验材料和方法1.参试药剂:40.7%毒死蜱乳油(美国陶氏化学公司提供);50%对硫磷乳油(天津农药厂产);20%氰戊菊酯乳油(日本住友化学公司产)。2.试验作物:金帅苹果,树龄10～20年生,每亩30株左右。
Chlorpyrifos is a kind of organophosphorus pesticide produced by Dow Chemical Company in the United States. It has contact poisoning, stomach poisoning and fumigation. In 1987, we carried out the efficacy test of chlorpyrifos against apple major pests, which mainly proved the control effect and cost-effective dosage, which provided the basis for production and application. First, the test materials and methods 1. Test agents: 40.7% chlorpyrifos EC (the United States Dow Chemical Company); 50% parathion EC (Tianjin Pesticide Factory); 20% Fenvalerate EC (Sumitomo Chemical Japan Production). 2. Experimental crops: Golden handsome apple, 10 to 20 years old, about 30 per acre.