Walnut ulcer disease is an important disease that damages walnut stems and fruits. Liao nuclear No. 3, Qingxiang and other varieties of fruit are heavier, entering the fruit in July, the number of diseased fruit until the harvest continued to increase. Prevention and control measures Walnut ulcer disease should be focused on the branches and fruits. For the diseased branches, the emphasis is on strengthening cultivation and management, increasing tree vigor, and strengthening disease resistance. 1. Build the garden in a suitable place. The thickness of the newly-developed orchard soil layer is required to be more than 1 meter, and the soil quality should be loose. It should not be planted in the clay mass and high groundwater table. 2. Add organic fertilizer. For every kilogram of green fruit produced, 3 kg of organic fertilizer is applied, suitable for application of phosphorus and potassium fertilizers. 3. Watering timely, timely drainage. The frozen water and the water before germination should be poured and drenched. The water should be properly watered in June and the water should be drained in time during the rainy season. 4. Timely trim. Pruning is carried out in the no-infestation period before the fall leaves fall or in the spring after germination, the tree structure is adjusted, the tree vigor is restored, and the disease resistance is improved. For fruits, the emphasis is on preventing infection by pathogens. The key to prevention and control is the female flower formation period, after flowering, and then spray once every 15 days. 60% Baitai 1500 times liquid, 10% Shige 2000 times liquid, and 40% Fuxing 4000 times liquid are used as the medicine. The above-mentioned medicaments can protect the fruits and make the shoots free from infection by pathogens, and also have a good killing effect on invading germs. Greenhouse Dutch Buckets,Dutch Bucket,Tomato Dutch Bucket,Plastic Dutch Bucket JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.greenhousehydroponic.com