地老虎是棉花苗期的主要害虫之一、一般以第一代幼虫危害棉苗。棉田遭地老虎危害，经常会造成严重缺苗断垄，甚至毁种重播或改种。棉苗移栽时，地老虎已处于高龄期，食量大，危害重。按常规采用有机磷农药防治效果欠佳；用吹响丹基施，因棉苗尚未活棵不利根系吸收，难以发挥药? To the tiger is one of the main pests of cotton seedling, the first generation of larvae generally harm cotton seedlings. The cotton fields are endangered by the tigers, which often result in serious shortage of seedlings and even destruction of seed replanting or replanting. Cotton seedlings transplanted to the tiger has been in advanced age, food intake, endangering heavy. According to the conventional use of organophosphorus pesticide ineffective to control; with blowing sounded Danjishi, because cotton seedling has not been adversely affected by root absorption, it is difficult to play medicine?