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研究和实践证明,把某种作物与棉花间作、套种或混种,往往可以控制或减轻某些害虫的发生,从而收到“不施农药,胜施农药”的效果。 1.麦棉套种这种配植方法对控制棉花苗期蚜虫十分有利。麦套棉由于小麦的屏障作用,不仅直接影响棉蚜迁入,而且棉田温度要比单作田低1℃左右,再加上麦行天敌的作用,苗蚜不用施药防治即可控制为害。据山东省1988年4处试验点观察,全年不治虫,单作棉田平均减产
Research and practice have proved that intercropping, interplanting or interplanting a certain crop with cotton often can control or reduce the occurrence of some pests and thus receive the effect of not using pesticides and winning pesticides. 1. Wheat Interplanting This method of planting cotton aphids control of the seedling is very favorable. Wheat wheat cotton barrier effect, not only directly affect the cotton aphid immigration, and the cotton field temperature is lower than the single field about 1 ℃, coupled with the role of the wheat line natural enemies, seedling aphids can be controlled without pesticide damage control. According to Shandong Province in 1988 observed at the 4 test points, pest-free throughout the year, an average reduction of cotton production