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1.麦棉套种。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,苗蚜不用施药即可控制。
1. Wheat and cotton intercropping Because of the barrier effect of wheat, 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 wheat line natural enemies, seedling aphids can be controlled without the application of pesticides.