The Causes and Treatment Methods of Grape (T-J) Disease
Comprehensively analyzing the causes and treatment methods of grape (T-J) disease, covering the knowledge of flowers and plants. Here is a comprehensive introduction.
The Causes and Treatment Methods of Grape (T-J) Disease
Grape orchards with low terrain, heavy soil texture, high air humidity, unreasonable pruning, poor ventilation, excessive application of nitrogen fertilizer, and extensive field management measures can lead to low resistance in grape plants, easily causing the widespread occurrence of (T-J) disease. Control agents such as prochloraz manganese, prochloraz, bromopol, difenoconazole, tebuconazole, and flusilazole can be selected for prevention and treatment, and diseased leaves should be removed.
Causes of Grape (T-J) Disease
Heavy rain, dew, and fog during the grape growing period provide favorable climatic conditions for the formation and spread of pathogen spores. The optimal germination temperature for spores is 28-32 degrees Celsius. Conidia cannot germinate in environments below 9 degrees or above 45 degrees Celsius.
Grape orchards with low terrain, heavy soil texture, high air humidity, unreasonable pruning, poor ventilation, excessive application of nitrogen fertilizer, and extensive field management measures can lead to low resistance in grape plants, easily causing the widespread occurrence of (T-J) disease.
Symptoms of Grape (T-J) Disease
When the disease occurs in nearly mature fruits, light brown, water-soaked circular spots form on the surface, which gradually expand to dark brown, circular sunken lesions. In high humidity conditions, pink sticky fluid may seep out, affecting the rachis, petioles, and fruiting branches.
Treatment of Grape (T-J) Disease
If (T-J) disease is not treated in time or diseased leaves are not removed, it can turn into sour rot. Triazole and strobilurin fungicides have dual preventive effects. Control agents such as prochloraz manganese, prochloraz, bromopol, difenoconazole, tebuconazole, and flusilazole can be selected for prevention and treatment.
Prevention Methods for Grape (T-J) Disease
1. Choose disease-resistant varieties
Different grape varieties have varying resistance to (T-J) disease. Generally, thin-skinned varieties are easily affected, early-maturing varieties are less affected, and late-maturing varieties are more severely affected.
2. Remove pathogen sources
During grape maintenance, keep the orchard clean to reduce the number of pathogens. When pruning and shaping, focus on removing diseased shoots and僵diseased fruits, and clean up fallen and withered leaves, removing them from the orchard for集中 deep burial or incineration.
3. Strengthen fertilizer and water management
Grapes are suitable for planting in loose, well-drained soil. Ditches should be dug during planting to reduce waterlogging in the rainy season and lower field humidity. Avoid excessive application of nitrogen fertilizer during the growing period and apply an appropriate amount of phosphorus and potassium fertilizers to enhance disease resistance.
The above content introduces the causes and treatment methods of grape (T-J) disease for green plant enthusiasts to refer to, hoping to solve your problems in green plant and flower management.