Wheat smut smut is a fungal disease, which mainly damages the stems, leaves and ears of wheat, and is called a devastating disease. The bacteria usually overwinter in the soil and manure with the diseased plant residues. In the initial stage of wheat infection, striped streoids parallel to the veins appear, causing leaf shrinkage, which is most pronounced during the jointing of wheat to the booting stage. The plants are dwarfed and severely distorted, and the bulging part gradually turns black and cracks. Dispel black powder. Infected plants were short and the number of tillers increased. Lighter ears were curled up within the inner sheath. Most of them were not strong. Even if they were seeded, the seeds were small and shrunk. In severe cases, they died before heading. The prevalence of wheat smut smut is related to the soil temperature during germination. If the soil temperature during emergence is high (20°C), it is suitable for invading bacteria. Secondly, it is related to the soil water holding capacity during jointing stage. Generally, the dry and barren land masses are heavier than the damp soil masses. From March to early April of this year, many areas in our province have continuous drought and low rainfall, and the temperature is appropriate, which is conducive to the occurrence and prevalence of smut. In addition, the difference in disease resistance between the varieties is also more obvious, generally speaking, the weak spring varieties are more severe than the half winter varieties. The key measure to prevent wheat smut smut is dressing. Use 2.5% Shiloh suspension seed coating agent 100-200 ml, add 0.5 kg of water, mix with 50 kg of wheat seed, or use 2% enemy Dan Dan seed coating agent 200-300 ml per 100 kg of wheat seed to coat. At the same time as chemical control, we must also adopt correct cultivation and management measures, such as deep plowing, appropriate sowing, suitable sowing depth, and reasonable fertilization, and also use disease-resistant and disease-resistant varieties. Athletic Tape,Elastic Sports Tape,Athletic Medical Tape,Waterproof Athletic Tape Henan Anbang Medical Supplies Co., Ltd. , https://www.anbangmedical.com
Control of wheat stalk smut can not be ignored
After the wheat entered the jointing period, it received a telephone call from a number of farmers, reflecting abnormalities in their own wheat fields. The wheat plants were short and the "coal beds" appeared on the leaves and stems, as if covered by coal ash. After the diagnosis in the field, experts in the science and technology institutes judged that the culprit was wheat smut smut (syn. Umai, black cockroach).