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棉铃虫是世界性的大害虫,是棉花稳产高产的最大障碍。国内外植保专家为了防治棉铃虫,遏制棉花减产,进行了大量的实验和研究,取得了很大进展,但寻找防治棉铃虫的最好方法是植保工作的大课题。 德州是产棉大市,产量最高的年份产籽棉43.5万吨,棉花生产曾为促进我市经济发展发挥过重要作用,是农民奔小康的重要途径。然而,近年来,棉铃虫肆虐,已严重阻碍了我市农村经济的发展。我市棉花常年因棉铃虫造成的危害减产二三成;1992—1993年特大暴发时减产达四成以上。棉农入不敷出,种棉积极性严重挫伤,面积逐年减少,产量最低的年份仅产籽棉1.42万吨,严重困扰了德州经济。
Cotton bollworm is a world-class pest and is the biggest obstacle to cotton’s steady and high yield. In order to prevent and cure the cotton bollworm and stop the cotton yield reduction, domestic and international experts in plant protection have carried out a great deal of experiments and research, and great progress has been made. However, the best way to find and control the cotton bollworm is to solve the problem of plant protection. Texas is a cotton-producing market with the highest output of 435,000 tons of seed cotton annually. Cotton production played an important role in promoting the economic development of our city and an important way for farmers to run toward the well-to-do society. However, in recent years, the epidemic of cotton bollworm has seriously hindered the development of the rural economy in our city. Cotton in our city perennial due to the harm caused by the bollworm cut 20%; 1992-1993 outbreak reached 40% or more. Cotton farmers make ends meet, cotton serious enthusiasm bruises, area decreased year by year, the lowest yield of only 14,200 tons of seed cotton seed production, seriously disturbing the Texas economy.