1.Sowing seedling stages Major pests: Soil pests;mites;aphids. Control methods: >Rational crop rotation; >Choosing resistant and sturdy varieties; Deeply plowing soil; Irrigating in winter and destroying weeds in spring;
Major pests: Soil pests; mites; aphids. Control methods: ¾Rational crop rotation; ¾Choosing resistant and sturdy varieties; ¾Deeply plowing soil; ¾Irrigating in winter and destroying weeds in spring; 1. Sowing & seedling stages
1.Sowing seedling stages >Seed insecticide treatment: Control soil pests:use 50%Phoxim EC or 40%Isofenphos_methyl EC to treat seeds on the basis of 0.2%-0.3%size compared to seed size. 防治地下害虫：50%辛硫磷EC或40%甲基异硫磷EC拌种，用药 量为种子量的0.2%0.3%
¾ Seed insecticide treatment: Control soil pests: use 50% Phoxim EC or 40% Isofenphos_methyl EC to treat seeds on the basis of 0.2%-0.3% size compared to seed size. 防治地下害虫：50%辛硫磷EC或40%甲基异硫磷EC拌种，用药 量为种子量的0.2%-0.3%。 1. Sowing & seedling stages
1.Sowing seedling stages >Seed insecticide treatment: Control aphids and mites:use systematic insecticides to treat seeds.This method can also control ground pests at the same time. 防治蚜虫和螨类：内吸性杀虫剂进行拌种，并可同时兼治地下害虫。 >Spraying insecticides
¾ Seed insecticide treatment: Control aphids and mites: use systematic insecticides to treat seeds. This method can also control ground pests at the same time. 防治蚜虫和螨类：内吸性杀虫剂进行拌种，并可同时兼治地下害虫。 ¾ Spraying insecticides 1. Sowing & seedling stages
2.Returning green shooting stages Major pests: Mites;armyworm;stem maggot; Control methods: Spraying insecticides; Protecting natural enemies
Major pests: Mites; armyworm; stem maggot; Control methods: Spraying insecticides; Protecting natural enemies. 2. Returning green & shooting stages
3.Booting heading stages Major pests: Wheat midges;aphids;sawflies. Control methods: Spraying insecticides; Protecting natural enemies
Major pests: Wheat midges; aphids; sawflies. Control methods: Spraying insecticides; Protecting natural enemies. 3. Booting & heading stages