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叶枯灵又名渝7802,是重庆农药厂农药研究所七十年代末研制的新品种。属有机硫类杀菌剂。经口急性毒性(LD50值大鼠72.76毫克/公斤,小鼠111.4豪克/公斤)属中等毒类;经皮毒性(LD50值,雌雄小鼠分别为20417和27861毫克/公斤)属低毒类。对大鼠基本无蓄积毒性。1983～1985年,该品种在四川、广东、广西、福建、浙江、湖北、河南、甘肃、黑龙江等地的水稻、蔬菜、果树等作物上的药效试验表明:一、用25%叶枯灵可湿性粉250～300倍液喷雾防
Ye Kuangling, also known as Yu 7802, is a new variety developed at the Institute of Pesticide Research in Chongqing Pesticide Factory in the late seventies. An organic sulfur fungicide. Oral acute toxicity (72.76 mg / kg in LD50 rats, 111.4 kg / kg in mice) was moderately toxic; and the transdermal toxicity (LD50, 20417 and 27861 mg / kg in male and female mice respectively) . No accumulation of toxicity in rats. From 1983 to 1985, the experiment on the effects of rice, vegetables, fruit trees and other crops in Sichuan, Guangdong, Guangxi, Fujian, Zhejiang, Hubei, Henan, Gansu and Heilongjiang showed that: Wettable powder 250 ~ 300 times spray anti-fog