Preventing wheat smut from scratching

Wheat smut, also known as "gray bag" disease. The mycelium of the disease is lurking in the seed embryo. The germination of the mycelium starts after the sowing of wheat. It develops to the growth point of the seedling and grows upward with the development of the wheat plant. When the wheat heads, the mycelium enters the flower organ and destroys everything in the flower plant. As a result, the wheat husks become ash-packed and not strong. The diseased plant is earlier than the healthy wheat plant, and when the wheat is heading and flowering, the mycelium (black powder) spreads with the wind to the Jianjian flower plant, and it is latent in the embryo as the seed develops and becomes the next year. Source of infection. Seed carrier is the only way to spread the disease. Strict treatment of seeds before sowing is the key to prevent this disease.
Cold soaking in the sun in the sunny day at about 6 o'clock in the morning, the wheat seeds are soaked in cold water for 5 hours, 12 o'clock noon to remove and dried in the sun under thin booths, cool in the afternoon and store closed. Seeds should be suntanned on bamboo mats, not on cement floors, asphalt pavements, and stone slabs to avoid damaging embryos and affecting germination and emergence.
Lime seed soaked in fresh lime 1 kg, with a small amount of cold water to open, plus 100 kg of cold water soaking, take the clear liquid soaked seed 50 - 60 kg (seeds to maintain the water layer 8-10 cm), over 36- - After 48 hours, remove the seeds and rinse the cadres with water. Seed after drying. Note: Do not stir during soaking so as not to damage the lime film on the seeds and reduce the sterilization effect.
Triadimefon dressing Triadimefon dressing, in addition to the prevention and treatment of "grey bag" disease, but also kill a variety of seed-borne pathogens, disease prevention effect of more than 90%. The specific method is: dry mix, take 15% Triadin 20 grams, mix 10 kg of wheat, mix well; wet mix, take 15% Triadin 100 grams, add 3 kg of water to dissolve, spray mix 50 kg of wheat seeds, while spraying Mix well and reach uniformity.

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