近年来,随着农业生产结构调整,麦棉套种面积增加,大秋作物面积减少,小地老虎由危害秋作物春苗转向棉苗,棉田发生普遍严重。1976～1987年,采用糖液诱蛾预测预报的方法,获得了连续11年的气候资料,掌握了小地老虎的发生规律,为大面积防治提出了可靠的依据。棉花苗期,在当地小地老虎共有两个蛾量高峰期,第一蛾峰平均出现在8月4日, In recent years, along with the adjustment of agricultural production structure, the area of ​​wheat-cotton intercropping increases and the area of ​​large autumn crops decreases. The small-to-medium-sized tiger turns from the spring crop that endangered autumn crops to the cotton seedling, and the occurrence of cotton fields is generally serious. From 1976 to 1987, using the method of forecasting the entrapment of sugar liquid, we obtained the climatic data for eleven consecutive years, grasped the law of occurrence of the small tiger, and laid a solid foundation for the prevention and control of the large area. At the seedling stage of cotton, there are two moth peak in the local small tiger, the first moth peak appeared on August 4 on average,