棉尖象虫是象鼻虫中危害较重、比较难治的一种害虫。棉尖象分布较广,朝阳地区六个县都有发生。主要为害谷子、玉米、高粱、棉花,其次是小麦、花生、大麻和牧草等。成虫先集中于谷子、玉米、高粱上危害,把苗心咬成一串串圆孔,以后陆续向棉田较移,咬伤叶柄,使棉叶萎蔫下垂,咬食生长点和幼蕾,造成棉株断头,花蕾脱落。一棵苗上常有几头到五十几头群聚危害,损失十分严重。通过几年来防治实践,摸索害虫的发生规律和防治的方法,取得较好的防治效果。集中消灭刚出土的成虫,一般在六月中旬,将药 Cotton spike elephant worm is a weevil in the more endangered, more difficult to rule a pest. Cotton spikes like a wider distribution, Chaoyang region have occurred in all six counties. The main damage to millet, corn, sorghum, cotton, followed by wheat, peanuts, marijuana and pasture. Adults first focus on millet, corn, sorghum on the harm, the heart bites into a string of round holes, and later one after another move to the cotton field, bitten the petioles, so that cotton leaves wilted, biting growth points and young buds, resulting in cotton plants Broken head, buds fall off. A seedling on the head often to a few dozen head of the cluster damage, the loss is very serious. After several years of prevention and control practice, to explore the occurrence of pests and prevention methods, and achieve better control effect. Focus on the eradication of newly unearthed adults, usually in mid-June, will be medicine