Wheat seed (soil) transmission and underground pests are one of the important factors affecting the high yield of wheat in our province. Carrying out autumn-seeded wheat seed treatment is a key measure to effectively control seed (soil) transmission and underground pests, and is an important measure to promote wheat seedlings to grow seedlings and achieve zero growth of pesticide use. At present, the autumn is on the way, all localities should fully strengthen the propaganda and service guidance of autumn-sown wheat seed treatment, vigorously promote efficient, safe and effective seed treatment technology, and strive to improve the coverage of seed treatment, laying the foundation for high-yield and stable production of summer grain in the coming year.
First, the choice of pharmaceuticals should be scientific. According to the characteristics of local wheat species (soil) and the occurrence of underground pests, all localities should scientifically and rationally choose experimental and demonstration, efficient and safe way to seed coating agents. In the disease-producing areas such as sheath blight and smut, it is possible to mix seed (coating) with tebuconazole, difenoconazole, diphenyl ether, flavonoid nitrile, rust rust and thiram. The total eclipse area can be seeded (coated) with silicillin or difenoconazole. In the area where the wheat root rot occurs, seed dressing (coating) is carried out using a drug such as flavonoids. The underground pest-infested area can be seeded (coated) with imidacloprid or thiamethoxam. Seed (soil) disease and underground pests may be mixed with phenyl ether, thiazole, imidacloprid, imiprazole, benzophenone, etc. (coating); or phoxim, imidacloprid Mix seed dressing (coating) with tebuconazole.
Second, the dosage should be reasonable. It is necessary to strictly control the amount and concentration of the seed treatment agent, and not to increase or decrease the dose and concentration. 6% tebuconazole FS 5 mL, water 200 mL seed dressing (coating) 10 kg wheat; 3% difenoconazole FS 20 mL, water 180 mL seed dressing (coating) 10 kg wheat; 4.8% Phenyl ether·Fluoridin nitrile FS 20 mL plus water 180 mL seed dressing (coating) 10 kg wheat; 12.5% ​​thiabendazole SC 20～30 mL water 100-120 mL, seed dressing (coating) 10 kg wheat Kind, then piled up for 10 to 12 hours, dried and sown. 25 g/L fludioxon FS 20 mL water 180 mL, mixed with wheat 10 kg; 60% imidacloprid FS 20 mL water 180 mL seed dressing (coating) 10 kg wheat; 30% thiamethoxam FS 20 mL Seed dressing (coating) 10 kg of water for 180 mL; 27% diphenyl ether · thief FS 20 mL for seed dressing (coating) 10 kg of wheat; 31.9% of ethiazole and imidacloprid FS 40 mL of water for 200 mL seed dressing (coating) 10 kg of wheat; 2.3% isopropylidazole · benzene · Benzene FS 60 g for water 150 mL seed dressing (coating) 10 kg of wheat; or use insecticide and sterilization Mix seed dressing (coating), optionally with 40% phoxim EC 50 g or 60% imidacloprid FS 20 mL plus 6% tebuconazole FS 5 mL for water (180 mL) seed dressing (coating) 10 kg. Excessive use and over-range use are strictly prohibited to prevent phytotoxic events.
The third is to use the method to be standardized. It is necessary to ensure that the seed coating agent (seed dressing agent) is evenly covered on the surface of the seed to improve the coating (seed dressing) effect; it is necessary to vigorously promote special equipment dressing (coating) to improve the quality of seed treatment; It was broadcast on the same day. Seed coating agents (seed dressings) that have not been tested in the local area shall not be promoted and applied, and unqualified seed coating products shall not be used to ensure the safety of medicines and the safety of crop emergence.
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