作物配植防病虫王玉堂把不同作物以间作、套种或混种的形式巧妙地安排在一起种植，可以收到“不施农药，胜施农药”的效果。（１）麦棉套种。由于小麦的屏障作用，不仅直接影响棉蚜迁人，而且棉田温度要比单作田低１℃，加上麦行天敌的作用，不用施药就可防治棉蚜。据观测... Crops with plant diseases and insect pests Wang Yutang different crops in intercropping, intercropping or intercropping in the form of cleverly arranged together to grow, you can receive “no pesticides, Sheng pesticides” effect. (1) Wheat and cotton intercropping. Because of the barrier effect of wheat, cotton aphid not only directly affects the immigration, but the temperature in cotton field is 1 ℃ lower than that in single cropping field. Combined with the natural enemy’s role, wheat aphid can be prevented without spraying. According to observation ...