In recent years, due to climate anomalies, adjustment of cultivation methods and cross-regional operations of agricultural machinery, wheat sheath blight, root rot, stem-based rot, smut, total erosion and other species transmission, soil-borne diseases and underground Pests have increased in species and increased in degree in some areas. The implementation of wheat seed treatment is an important measure to effectively control seed transmission, soil-borne diseases and underground pests, promote wheat seedlings and seedlings, and achieve pesticide reduction. At present, the autumn is about to be broadcasted. All localities should strengthen the propaganda and technical guidance of seed treatment, vigorously promote safe and efficient seed treatment technology, and strive to improve the coverage of seed treatment, laying the foundation for the harvest of summer grain and high yield.
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1 Seed Pharmacy Treatment Technology
The first is to properly carry out seed treatment. According to the local wheat seed transmission, soil-borne diseases and the occurrence characteristics of underground pests, scientifically choose the pesticides, suitable doses and correct methods for seed treatment. Diseases such as sheath blight, smut, smut, etc.: 6% tebuconazole FS 5 mL, 200 mL water or seed dressing 10 kg wheat seeds; or 30% diphenyl ether ring 15 mL of azole FS, 150 mL of water or seeded with 10 kg of wheat; or 4.8% of phenyl ether·Fluoridin FS 0.5-1.5 g plus water 200 mL mixed with 10 kg of wheat; or choose rust rust · Fumei bis Dressing with pesticides. Total eclipse area: 12.5% ​​thiamethoxam SC 20～30 mL to 50 mL to 75 mL of water, 10 kg of wheat seeds, then piled for 10-12 h, dried and sown; or 30 g/ L-phenylene ether cyclic FS is seeded (coating) according to the ratio of 1:167-200. Wheat root rot disease area: 2.5% of flavonoids FS 3.75 ~ 5 g can be mixed with wheat seeds 100 kg; or 15% more · Fu according to the drug type 1:60 ~ 80 seed coating. Underground pest occurrence area: It is necessary to adhere to the combination of pesticide dressing and poisonous soil method and poison bait method to improve the control effect. 60% imidacloprid FS 20 mL, 150-200 mL water can be used to coat 10 kg of wheat. Seed (soil) disease and underground pests mixed area: 27% phenyl ether · thief FS 20 mL can be used to mix 250 mL of water with 10 kg of wheat, or 31.9% of ethiazole · imidacloprid FS 40 mL for water 200 mL of wheat seeds mixed with 10 kg, or 2.3% imiprazole · benzo· Benzene FS 25 mL for 75 mL of water mixed with 10 kg of wheat; or mixed with insecticide and fungicide for seed dressing or coating, optional 40 % phoxim EC 50 g or 60% imidacloprid FS 20 mL plus 6% tebuconazole FS 5 mL; water 200 mL mixed with 10 kg of wheat seeds to achieve both pest and disease treatment.
The second is to ensure that seed treatment is safe and efficient. It is necessary to strictly control the amount and concentration of the seed treatment agent. Do not increase or decrease the dose and concentration arbitrarily. Pay particular attention to the dosage and concentration of the tebuconazole seed coating agent. It is strictly forbidden to use excessive or over-range to prevent the occurrence of phytotoxic events. . It is necessary to ensure that the seed treatment agent is evenly covered on the surface of the seed to improve the effect of seed dressing (coating); it is necessary to vigorously demonstrate the promotion of special equipment seed dressing (coating) to improve the quality of seed treatment; to be ready for use (package), and to broadcast on the same day. . Seed treatment chemicals that have not been tested in the local area shall not be promoted and promoted, and unqualified seed coating agents shall not be used to ensure drug safety and crop emergence safety.
2 Practically strengthen service guidance
Carrying out the treatment of autumn sowing seeds is one of the key measures to move the prevention and control points forward and achieve pesticide reduction and control. At present, the autumn wheat planting in the province is about to kick off. All localities should fully understand their importance, deploy early and act quickly to ensure that all prevention and control measures are implemented.
The first is to strengthen publicity and launch. It is necessary to make full use of radio, television, newspapers, clear paper, mobile phone text messages, WeChat and other channels to carry out the significance of autumn seeding agent treatment and the importance of doing disease prevention and control work in autumn and winter, and popularize the seed treatment technology of autumn crop seeds. Let the grassroots cadres and peasants take the initiative to invest in the autumn seed dressing (coating) work to improve the initiative and consciousness of seed drug treatment. According to the characteristics of local pests and diseases and the need for prevention and control of pests and diseases in autumn and winter, strengthen the demand scheduling of prevention and control materials to ensure that the prevention and control materials are not out of stock and continue to be kept.
The second is to increase technical guidance. In the critical period of autumn sowing treatment, it is necessary to organize technicians to go deep into the production line, especially in areas where seed transmission, soil-borne diseases and underground pests are heavier and the technology penetration rate is low, and guide farmers to scientifically carry out autumn seed crop seed treatment. , reduce white species to the field. It is necessary to strengthen the guidance of safe drug use for professional agricultural service organizations such as professional service organizations, family farms, and scale growers to ensure the safety of drug use and ensure the steady and orderly development of seed treatment. Through the issuance of technical materials, training courses, and on-site training sessions, “face-to-face†and “hands-on†popularize seed processing technologies, do everything possible to improve the technology in place, and strive to improve the level of seed processing.
The third is to strengthen the construction of demonstration zones. Seed chemical treatment technology is an important measure to achieve the reduction of pesticide use. All localities should increase the experimental demonstration of new pesticides and new technologies for seed treatment according to local conditions, and actively select products and technologies suitable for local use. It is necessary to establish a demonstration area for autumn sowing seeds at different levels, demonstrate the promotion of new pesticide treatment, display safe and effective prevention and control technology, enable farmers to see and learn, promote the balanced development of large-scale work, and strive for wheat smut and all In areas with high disease threats such as eclipse and root rot, the coverage rate of autumn sowing seeds in the blight and underground pest re-emergence areas increased by 10 percentage points compared with the previous year.
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