棉蚜(Aphis gossypii Glover)是我省棉区主要害虫之一,年发生20代以上,以成蚜和若蚜两种虫态为害棉苗嫩头和生长点,使棉株生长缓慢,晚熟减产。特别是近年来由于菊酯类农药的大剂量单一使用,棉蚜抗药性明显增大,抗性棉蚜种群数量逐年扩大,使得部分菊酯类农药出现失效的现象。而 Cotton aphid (Aphis gossypii Glover) is one of the main pests in the cotton area of ​​our province. It occurs more than 20 generations annually and infects the tender shoots and growth points of the cotton buds with aphids and aphids, causing the cotton plants to grow slowly and yield late . Especially in recent years due to single use of high-dose pyrethroid pesticides, cotton aphid significantly increased resistance, the population of resistant cotton aphids year by year expansion, making part of the phenomenon of pyrethroid pesticides failure. and