Method for controlling pests and weeds during wheat autumn sowing

1. Do a good job of variety layout and planting at the right time. The wheat variety is mainly Mianyang 31, and the hilly shallow mountain area is matched with Chuanmai 107 and Miannong 30. Appropriate sowing: The middle and high mountain areas start from the cold dew, and the seeds are planted before the frost falls; the “frost drop” in the shallow mountain areas is planted.

2, pesticide dressing. If uncoated wheat seeds are used, seed dressing must be carried out. Seed dressing method: 50 kg with 15% triazodone wettable powder 75 g or 20% triazolone EC 75 ml, or 0.02% of the seed amount. The seed of the fruit (active ingredient) is seeded. Dry mix, wet mix can be, the seed dressing should be even, the mixed seed is broadcasted on the same day.

3. Chemical weeding . Wheat can be treated before sowing, with 50% acetochlor EC 50 ml + 10% bensulfuron-methyl WP 8 g per acre, sprayed with water before germination.

4. Prevent underground pests. Underground pests have been increasing in recent years, causing great losses to the emergence of wheat, rapeseed and potato tubers. Heavier plots occur, wheat can be mixed with 50% phoxim according to the seed amount of 0.2%, first mixed with phoxim, piled up and dried, then mixed with triadimefon. Potato and rapeseed land can be treated with soil . Before sowing, use 50% phoxim emulsifiable concentrate of 250-300 ml per acre to 30-40 kg of water, spray evenly on the ground, and then plow the tillage, which can effectively prevent cockroaches and cockroaches. Waiting for underground pests.