The most common pest control is root rot and cruciferous diseases. Methods: Seedbed field rotation, drug control: after sowing, the roots were watered once every 65 days, 438+00 days and 20 days, and the dosage was 3-4 times that of spraying (50 grams per mu). The most common pests are Plutella xylostella and aphids, and the biological pesticide "Green Wave" 800- 1000 times liquid Kung Fu EC is used.