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棉花叶跳虫的为害,在我县棉区甚为普遍。在长江中游两岸的气候条件下,一般每年发生约12—13代不等;但代数发生的多寡又和当地大气温度的高低有着相互密切的关系。在我区夏季伏旱高温的情况下,其繁殖力极为旺盛,因而形成发生为害严重而且普遍的特点;又由于我区沿江滨湖平原地区均是大面积种植棉花,且地多人少,劳力不足,对叶跳虫的防治就很难做到及时和全面彻底。所以,在使用飞机防治其他单食性害虫的同时,来兼治叶跳虫是非常必要的。今年,在使用飞机防治红铃虫时,
Damaged cotton leaf spring insect, cotton area in my county is very common. Under the climatic conditions on both banks of the middle reaches of the Yangtze River, there are generally about 12 to 13 generations occurring each year. However, the occurrence of algebra is closely related to the local atmospheric temperature. Under the condition of summer drought and high temperature in my area, its fertility is extremely vigorous, thus causing the occurrence of serious and common pests. In addition, due to large area of cotton growing along the riverside and lakeshore plain in our district, , The control of leaf hopper is very difficult to achieve timely and thorough. Therefore, in the use of aircraft to control other pests, it is necessary to control leaf hoppers. This year, when using the aircraft to control pink bollworm,