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为了探索棉虫综合治理新途径,减轻农药污染保护农业生态环境,1984—1989年,在射阳县对麦套移栽棉田进行了6月底前不治棉蚜,用棉蚜繁殖培养天敌控制中、后期害虫的对比试验、示范。结果表明,前期不用药防治棉蚜,对棉花的生长发育和产量均无显著影响;在前期棉蚜及中后期害虫重发生的年份,由于天敌的补偿增产效应获明显增产。同时减少用药3—5遍,试验的经济、生态和社会效益良好。
In order to explore a new approach to the comprehensive management of cotton insects and reduce pesticide pollution to protect agricultural ecological environment, 1984-1989, in Sheyang County, transplanting of wheat in wheat transplanting cotton before the end of June without treatment of cotton aphids, cotton aphids breeding and control of natural enemies, Late pest contrast test, demonstration. The results showed that no prevention and treatment of aphids in early stage had no significant effect on the growth and yield of cotton. In the early stage of aphids and pest re-emergence in middle and late stages, the yield increase of natural enemies was obviously increased due to compensatory increase of yield. At the same time reduce the medication 3-5 times, the test of economic, ecological and social benefits are good.