I.IPM of Cotton Planting trapping crops Sowing one row of rape at the interval of each 8-12 rows of cotton,Vegetable aphids on the rapes can trap ladybirds and other natural enemies of cotton aphids which can feed on cotton aphids. 在棉田每隔8-12行种植1行甘蓝型油菜，在繁殖菜蚜的同时招引 繁殖瓢虫等天敌，使天敌有充分的活动空间和食料。‹Planting trapping crops Sowing one row of rape at the interval of each 8-12 rows of cotton, Vegetable aphids on the rapes can trap ladybirds and other natural enemies of cotton aphids which can feed on cotton aphids. 在棉田每隔8-12行种植1行甘蓝型油菜，在繁殖菜蚜的同时招引、 繁殖瓢虫等天敌，使天敌有充分的活动空间和食料。 Ⅰ. IPM of Cotton IPM of Cotton