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一、害虫抗性的发展概况自从1946年发现家蝇对DDT产生抗性以来,大约40年中昆虫对杀虫剂已经发展到600种以上。1954年还只有25种昆虫产生了抗性,在这以后过了30年,昆虫的抗性种类增加了25倍左右。60—70年代是历史上杀虫剂发展最迅速的时期,但是在这期间,也是害虫抗性发展最快的年代,每年平均最少有20种昆虫产生抗性。储粮害虫抗性发展的情况也是如此,60年代最初只发现3种,目前已知有18种鞘翅目,7种鳞翅目昆虫和6种螨类,大约对87种杀虫剂和12种熏蒸剂产生了抗性。
First, the development of pest resistance Overview Since house flies found resistance to DDT in 1946, insects have developed over 600 insecticides in about 40 years. In 1954, only 25 species of insects became resistant. After 30 years, insect resistance increased by 25 times. 60-70 years is the history of the fastest growing period of pesticides, but during this period is also the fastest growing era of pest resistance, the annual average of at least 20 kinds of insects produce resistance. The same is true for the development of stored grain pest resistance, with only three initially found in the 1960s, 18 species of Coleoptera, 7 Lepidoptera and 6 species of mites, about 87 insecticides and 12 species Fumigant is resistant.