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目前在我国已经测定证实对一种或几种药剂产生抗性的农业害虫有12种(见表1)。虽然与国外相比,似乎产生抗性的害虫不多,据生产上反映有抗性而未经测定的却不少。如棉红铃虫对滴滴涕,稻纵卷叶螟、菜白蝶对敌百虫;其它如大螟、二化螟,玉米螟、灰稻虱、茶尺蠖、斜纹夜蛾、稻蓟马、桃蚜、苹果红蜘蛛、枣步曲、松毛虫、金钢占、飞蝗、蝼蛄、地老虎对某些药剂等。由此可见,抗性可能已遍及粮、棉、茶、菜、果、林。现对几种主要害虫抗性情况简述如下: (一)三化螟的抗药性 在南方水稻区早在五十年代就开始大面积使用6％666可湿性粉剂治螟。约在1966年改用对硫磷乳剂和对硫磷—666混合粉。1964—1965年在浙江海盐
At present, there are 12 species of agricultural pests that have been tested and confirmed to be resistant to one or several agents in our country (see Table 1). Although it seems that there are not many pests that produce resistance compared with foreign countries, there are quite a few unidentified ones that have shown resistance in production. Such as cotton bollworm pairs of DDT, rice leaf roller, cabbage white on the trichlorfon; other such as Sesamia inferens, Chilo suppressalis, corn borer, ash louse, tea scallop, Spodoptera, rice thrips, peach Aphids, red spider apple, jujube song, pine caterpillars, accounting for gold, locusts, emu, tiger on certain agents. This shows that resistance may have spread throughout the food, cotton, tea, vegetables, fruit, forest. Now the situation of resistance of several major pests are summarized as follows: (1) Resistance of Borer in the Southern Rice Area In the early 1950s, 6% 666 wettable powder was used for the treatment of Borer. About 1966 use parathion emulsion and parathion -666 mixed powder. 1964-1965 Haiyan in Zhejiang