【作者】 刘永生；

【Author】 Liu Yongsheng (Xiaogan college, Hubei, 432100)

【机构】 孝感学院昆虫教研室；

【摘要】 棉蚜(Aphis gossyppi Glover)在棉花苗期普遍发生且危害严重,由于棉产区多年来频繁使用化学农药防治棉蚜,使棉蚜抗药性增强,同时大量杀伤天敌,造成环境污染,致使棉蚜更加猖獗为害,对棉花产量影响很大。本试验是观察不同类型棉田棉蚜及其主要天敌的消长,以及天敌对棉蚜的控制效果,观察表明:棉田自然天敌对苗期棉蚜一般是可以控制其为害的;在生产活动中,要协调各项措施,尽量减少对天敌的影响,以提高其对棉蚜的自然控制能力。更多还原

【Abstract】 Aphis gossyppi Glover occurred universally and was harmful seriously during the period of cotton sprouts. Due to the several years constant using of chemical pesticide, Aphis gossyppi Glover’ s pesticide resistance became stronger. At the same time, pesticide killed a large number of natural enemy for them and led to the environment pollution. All of above caused the Aphis gossyppi Glover to go more rampant, and seriously influenced the production of cotton. The experiment is for observing Aphis gossyppi Glover and its main natural enemy’ s exist number in different types of cotton fields and also for checking the natural enemies effort of Aphis gossyppi Glover. The observation shows that the natural enemies are able to control.Aphis gossyppi Glover; We should try our best to coordinate the each methods and reduce the effert to natural enemies, so as to strengthen the natural ability of Aphis gossyppi Glover’s control.更多还原