我国棉铃虫的抗药性及其治理对策王荫长李国清（南京农业大学植保系２１００９５）我国棉铃虫的抗药性自９０年代初开始急剧上升，到１９９２年很多菊酯类农药在北方棉区棉铃虫大暴发时已经无法控制其为害，致使当年受害面积达到４３０万ｈｍ２，减产皮棉３００万ｔ，第二... Resistance of Helicoverpa armigera in our country and its control strategy Wang Yinchang Li Guoqing (Plant Protection Department, Nanjing Agricultural University, 210095) The resistance of H. armigera in our country has risen sharply since the early 1990s. By 1992, many pyrethroid insecticides broke out in the northern cotton bollworm When it has been unable to control its damage, resulting in the victim area reached 4.3 million hm2, cut lint 3 million t, the second ...