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农一师垦区80年代中后期,棉铃虫发生轻微,进入90年代,尤其是1992年以后,棉铃虫为害逐年加重,近两年回升速度很快。这是因为当前有许多对棉铃虫种群发展的有利因素:棉花品种及生长状况,棉花面积大及棉花茬地冬翻面积小的矛盾,蜜源和棉花生育期,大气候和小气候等。正因为有了上述因素,所以在农一师垦区若遇暖春,越冬代羽化进度快,后期高温配合适当降雨的年份,在当前棉田这种生态状况下,2、3代或者3、4代棉铃虫均可以严重发生。当前棉铃虫的防治对策是:运期早播和促棉早熟;诱杀1、2代成虫;积极开展预测预报工作;加强对棉铃虫的防治工作。
In the mid and late 1980s, the bollworm occurred slightly in the agricultural reclamation area and entered the 1990s. Especially after 1992, the damage of cotton bollworm increased year by year. The recovery rate in the past two years was very fast. This is because there are many favorable factors for the development of the cotton bollworm population: cotton varieties and growth conditions, cotton area and large area of cotton stubble contradictions, contraceptive growth of honey and cotton, the climate and microclimate. It is because of these factors, so in the agricultural division of a reclamation area in case of warm spring, overwintering on behalf of the emergence of fast progress, the late high temperature with appropriate rainfall in the current cotton fields in this ecological situation, the second generation or third generation Cotton bollworm can occur seriously. The current control measures of cotton bollworm are: early sowing and promoting cotton precocity; trapping the first and second generations of adults; actively carry out forecasting and forecasting work; and strengthen the prevention and control of cotton bollworm.