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确定农药对高等动物毒性和杀虫效力的LD_(50)值(即致死中量)过去都是以农药纯品求得的。直接使用的商品农药如乳油、粉剂等,原药含量不一,有些制剂尚含有毒性较低的溶剂或助剂,因此制剂的LD_(50)值与原药的LD_(50)值应有差别。 据世界卫生组织(WHO)推荐的《农药毒性分级》使用说明,我们对农药制剂的LD_(50)值进行探讨,为选择溶剂或助剂提供依
The LD_ (50) value (that is, the lethal dose) of determining the toxicity and insecticidal effect of pesticides on higher animals was used as the pure pesticide product in the past. The direct use of commercial pesticides such as EC, powder, etc., the original drug content varies, and some preparations still contain less toxic solvents or additives, so LD_ (50) value of the preparation and the LD_ (50) value of the original drug should be different . According to the World Health Organization (WHO) recommended “pesticide toxicity classification” instructions for use, we pesticide formulations of LD_ (50) value to explore for the choice of solvents or additives provided by