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棉花蕾铃期的害虫种类很多,有棉蚜、红蜘蛛、小卷叶虫、盲椿象、红铃虫、金钢钻、棉铃虫、叶跳虫、小造桥虫及斜纹夜蛾等十余种;而且发生为害期长,从棉花现蕾到棉花吐絮都发生为害。有的隐蔽蛀食蕾铃,有的食害棉叶,有的暴食叶片、花蕾,也有的潜伏在根际为害(如根蚜,根天牛)棉株。总之,为害情况复杂,程度相当严重,受害棉田轻的则减产二、三成,严重的垮杆成灾,全部无收。目前防治棉虫的药剂,有棉油皂、666、石灰硫磺合剂、滴滴涕、敌百虫、1605、1059、3911、退得完、安索及伊克丁等十多种。这些农药使用技术性较强,广大棉农还不能全面掌握使用,因而在
There are many kinds of pests in boll boll stage, such as cotton aphid, red spider, small leaf roller, blind stink bug, pink bollworm, diamond, bollworm, leaf hopper, Species; and the occurrence of a long period of harm, from cotton buds cotton boll all happen harm. Some hidden eaten buds bell, and some food damage cotton leaves, some gluttony leaves, buds, and some lurking in the rhizosphere damage (such as root aphid, root day cattle) cotton plants. In short, the damage situation is complicated and the degree is rather serious. The light damage to the cotton fields reduces the output by 20% to 30%. The serious collapse and disaster all come to nothing. The current control of cotton insects, cotton oil soap, 666, lime sulfur mixture, DDT, trichlorfon, 1605,1059,3911, withdrew, Ansuo and Ictudin and so on more than 10 kinds. The use of these pesticides is strong, the vast number of farmers can not fully grasp the use, and thus