Insecticide Resistance Study in Spodoptera exigua (Hübner) Ⅰ. Detecting the Resistance in a General Survey

Abstract

Following the establish of a susceptible strain of beet armyworm BAW, Spodoptera exigua) in Taiwan Agricultural Research Institute, the insecticide resistance of field-collected BAW had been determined. In the susceptible strain, methomyl and synthetic pyrethroid were the most effective insecticides followed by organophosphorus insecticides, while carbofuran and cartap were not effective.由本省北、中及南部地區青葱上所採集之甜菜夜蛾與省農試所培養之感性品系，比較三類主要殺蟲劑之敏感度發現，甜菜夜蛾對合成除蟲菊精劑最為敏感，而對納乃得之感度也極高，有機磷劑之藥效落於其後，與納乃得同屬氨基甲酸鹽之加保扶效果更次之，而本省蔬菜上常用之培丹則完全無藥效。