In winter, it's crucial to implement proper care for pomegranate trees to minimize the risk of pests and diseases in the coming season. One of the most effective methods is to clean up overwintering pathogens and pests. This involves pruning the trees after they have shed their leaves but before new growth begins. Focus on removing root sprouts, leggy branches, overly dense branches, weak or thin branches, diseased or insect-infested branches, hanging or crossing branches, and overlapping ones. After pruning, treat the wounds with a wound sealant to create a protective layer that promotes healing and prevents pathogen infection.
During the spring bud and flowering stage, it's important to manage pests like aphids and thrips to prevent potential disease outbreaks. For insect control, you can mix 12ml of 33% Chlorine Emulsion with 1500 times water and spray both sides of the leaves. If worms persist within 3-5 days, apply 2.5% WP at 10g per 1500 times dilution. Repeat this every 7-10 days as needed. To address bacterial issues, use 10% World High Water Dispersible Granules diluted 3000 times or 20% propiconazole EC also at 3000 times dilution.
During the young fruit stage, focus on controlling diseases such as anthracnose, cotton bollworms, and scale insects. This period is critical for managing opiate disease, and 25% emulsifiable concentrate has proven highly effective. Before and after June 5th, spray the entire orchard with a mixture of forriflin, diflubenzuron, foliar fertilizer, and carbendazim to control the first generation of larvae. During flowering and fruit development, applying fruit Zhuang Ti Ling once helps protect blossoms, preserve fruit, and enhance the tree’s resistance.
As fruits begin to enlarge, it's time to prevent diseases like dry rot, soft rot, and sesame disease. A 200-fold Bordeaux mixture can be sprayed every two weeks to provide broad-spectrum protection. In cases of severe infection, consider using specialized fungicides such as bacteria, mancozeb, or carbendazim.
During fruit maturity, focus on preventing peach aphid and sesame disease. You can use 50% phoxim EC diluted 800 or 2000 times, and remove leaves around the fruit to prevent the spread of P. avenae. Additionally, spray 25% difenoconazole emulsion diluted 3000 times to protect the fruit surface from spots.
After harvesting, it's essential to manage leaf fall and dry rot. Clear all fallen leaves from the garden, and burn or bury diseased, rotten, or old fruit along with dead leaves to eliminate overwintering disease sources. Scrape affected branches and deep lesions, then cover them with a protective agent like tree maintenance general to promote recovery and prevent future infections.
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