石油作为农用杀虫剂,已有悠久的历史。美国从1868年即开始使用石油乳剂,至1906年后改用机油乳剂;日本从1926年开始使用机油乳剂,目前已成为防治果树和园林害螨、蚧类的主要药剂。我国过去防治螨、蚧类主要应用有机农药和松脂合剂。由于松脂和碱供应不足,熬制、使用较麻烦;而有机磷农药毒性较高,且杀伤天敌,因此, Oil as a pesticide for agriculture has a long history. Since 1868, the United States began to use petroleum emulsions and switched to oil emulsions after 1906. Japan began to use oil emulsions in 1926 and has now become the main agent for controlling pests and kites in fruit trees and gardens. In the past, China used mites and kites to control organic pesticides and pine resins. Due to the lack of supply of turpentine and alkali, brewing, the use of more trouble; and organophosphate pesticides higher toxicity, and kill natural enemies, therefore,