“预防为主,综合防治”是我国植保工作的方针。遵照毛主席关于“洋为中用”的教导,现就国外在这方面的进展情况加以综述,供有夫同志分析参考。 一、基本概念 国外害虫综合防治是加拿大皮凯特(A.D.Pick-ett)在苹果园中经过20年实地试验而提出的。以后美国对苜蓿及棉花害虫,法国对森林害虫,也采用了这种方法。西方各国由于滥用滴滴涕等有机杀虫剂,产生 “Prevention first, comprehensive prevention and control” is the policy of plant protection in our country. Following Chairman Mao’s teachings on “learning from foreign countries,” we now give an overview of the progress made by foreign countries in this regard for our analysis and reference. First, the basic concept of Integrated pest management is Canada’s Pik Kate (A.D.Pick-ett) in the apple orchard after 20 years of field trials and put forward. After the United States on alfalfa and cotton pests, the French forest pests, also used this method. Western countries abuse of DDT and other organic pesticides generated