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Latest Guide to Common Rice Disease Prevention and Control Techniques
1. Rice blast. Rice blast, also known as rice fever, can be divided according to the damage period and plant part into seedling blast, leaf blast, neck blast, branch blast, grain blast, and so on. Seedling blast: the base is grayish black, the upper part turns brown, curls and dies; when humidity is high, the diseased part produces a large amount of grayish black mold.
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What are the latest control measures for potato late blight?
Potato late blight, also known as blight, is a widespread and serious epidemic disease. It occurs in all areas where potatoes are grown. When late blight epidemics occur in susceptible varieties, field yield losses can reach 20%-50%, and storage losses range from 5%-10% in mild cases to
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What are the latest control measures for wheat fusarium head blight?
Wheat fusarium head blight is also known as wheat ear blight, rotten wheat head, and red wheat head. It mainly causes seedling blight, ear rot, stem base rot, and stalk rot, and can damage the plant from the seedling stage to heading. Among these, ear rot has the most serious impact. Symptom classification 1. Seedling rot Is caused by seed-borne bacteria or infection by diseased residues in the soil
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Latest Symptom Identification and Control Measures for Wheat Take-All Disease
Wheat take-all disease is a quarantine fungal disease of wheat. It causes severe damage and spreads quickly. The pathogen generally survives in the soil for more than 7 years. Affected by factors such as environment and variety, the degree and scope of the disease increase to varying extents, and it can reduce wheat yield by 20%-35%. In severely affected fields, yield is reduced by nearly half or even total crop failure. It is a devastating disease of wheat, known as the "cancer" of wheat.
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Latest Control Methods and Precautions for Wheat Sharp Eyespot
Wheat sharp eyespot can infect wheat at different growth stages. After wheat emerges, the pathogen that oversummers in the soil infects the underground stems and basal leaf sheaths of the wheat seedlings. After wheat turns green, light brown oval or diamond-shaped lesions appear on the basal leaf sheaths of the affected wheat seedlings,
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Latest Causes and Control Measures of Wheat Root Rot
It occurs in all wheat-growing countries; in China it mainly occurs in Northeast China, Northwest China, North China, Inner Mongolia and other regions, and in recent years it has continued to expand, with cases also found in the wheat-growing areas of Guangdong and Fujian. The symptoms are similar to those of root drowning disease. After the underground roots are infected by the pathogen, it first spreads from the fibrous roots to the branch roots and then
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Latest Corn Pest and Disease Prevention and Control Techniques: A Step-by-Step Guide
During the production process, corn is often harmed by various pests and diseases, causing severe yield reductions. For example, in years when northern corn leaf blight is epidemic, yields can be reduced by 15-30% due to the disease, and severely affected fields can lose more than 50%; damage from the Asian corn borer typically reduces corn yields by about 10%, and in severe years by about 30%.
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How to prevent and control northern corn leaf blight? A detailed explanation of the latest control measures
Northern corn leaf blight is one of the main diseases of corn, mainly damaging the leaves, and in severe cases also harming the leaf sheaths and husk leaves. After the plant is infected, it starts from the bottom leaves and gradually spreads upward; on the same leaf, large and small spots can occur together, or multiple lesions can merge with each other.
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Latest Technical Methods Tutorial for the Prevention and Control of Rice Seedling Blight
Rice seedling blight is one of the most important diseases of dry-raised rice seedlings. Its main causes are excessively low temperatures, excessive day-night temperature differences, alkaline soil, insufficient light leading to weak and spindly seedlings, and excessive seeding rates. The main field symptoms are wilting of seedlings after emergence, easy breaking when pulled
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Symptoms and Control Methods of Maize Rough Dwarf Disease
Maize rough dwarf disease is a viral disease of maize caused by Maize rough dwarf virus. Maize rough dwarf virus belongs to the plant reovirus group and is a spherical virus with double-stranded RNA and a double-layered capsid. It is transmitted by the small brown planthopper (Laodelphax striatellus) in a persistent manner. Maize rough dwarf disease is an important disease prevalent in the maize production areas of northern China.
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