What causes walnut husk rot?
What causes walnut husk rot? Please explain the causes and control methods. The main factor in walnut husk rot is that when air humidity is high, it can cause walnut anthracnose, and the lesions have pink raised bumps. When there are many lesions, they can merge into patches, showing as the fruit turning black and rotting or dropping early. Walnut husk rot control methods...
What causes walnut husk rot? Please explain the causes and control methods.The main factor in walnut husk rot is that when air humidity is high, it can cause walnut anthracnose, and the lesions have pink raised bumps. When there are many lesions, they can merge into patches, showing as the fruit turning black and rotting or dropping early.
Walnut husk rot control methods:
1. Remove diseased branches, diseased fruits and diseased leaves and burn them in a centralized manner. Strengthen tree management and improve ventilation and light conditions.
2. When the rainy season arrives, spray Bordeaux mixture once every 10-15 days to prevent the disease.
3. When the disease occurs, spray 40% thiram wettable powder at 800 times dilution, or 50% carbendazim wettable powder at 1000 times dilution, 75% chlorothalonil at 600 times dilution, 70% thiophanate at 800 times dilution, once every 15 days, for 2-3 consecutive sprays.
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