西北农林科技大学：《农业昆虫学》课程教学课件（英文版，2012）Chapter 20 IPM of Vegetables

I IPM of Cruciferous Vegetables *Rational layout of various vegetables Avoid continuous cropping of single variety; Place seedling nursery of autumn vegetables far from cruciferous vegetables, reserving seed vegetables and peach orchards to decrease aphids;

™ Rational layout of various vegetables Avoid continuous cropping of single variety; Place seedling nursery of autumn vegetables far from cruciferous vegetables, reserving seed vegetables and peach orchards to decrease aphids; Ⅰ. IPM of Cruciferous Vegetables

I IPM of Cruciferous Vegetables *Adjust sowing time or choose early mature varieties: Escape peak of pest appearing; Seed treatment: Prevent soil pests and aphids of seedling period;

™ Adjust sowing time or choose early mature varieties: Escape peak of pest appearing; ™ Seed treatment: Prevent soil pests and aphids of seedling period; Ⅰ. IPM of Cruciferous Vegetables