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邯郸市1981年开始复播棉种植试验，随着夏播棉的大面积种植，农田生态环境发生改变，棉铃虫Helicoverpaarmigera（Hubner）的种群消长规律及危害特点也发生了明显的变化，导致近年来棉铃虫持续猖撅发生危害。为了弄清棉铃虫在新的栽培条件下其种群消长规律及危害特点，为本生态
In 1981, Handan started the planted cotton replanting experiment. With the planting of summer sowing cotton, the ecological environment of farmland changed. The population dynamics and damage characteristics of Helicoverpa armigera (Hubner) also changed obviously, Helicoverpa armigera sustained rampant harm. In order to understand the cotton bollworm in the new cultivation conditions of its population growth and damage characteristics of the characteristics of ecological