What effect does the symptom of hickory pink mildew have? How to control pink mildew of hickory

Pink mildew on pecans is a secondary disease that usually develops from a fungal disease called pecan scab when nuts have previously been injured. The key to dealing with pecan powder mold is to solve the preliminary problem; if the pecan scab fungus is properly controlled, the use of pecan with pink mold can usually be avoided.

Symptoms of pecan pink mildew: initially, pink mold enters through cracks and cracks in pecans, exposing damaged tissue in the green hull. If the conditions are wet, the pink mold grows quickly and enters the inside of the pecan, destroying the nut and leaving a large amount of pink powder in its place. There is usually a rotten smell.

The management of pecan sore disease usually solves any problem of pink mold on pecans. Pecan sore is a common but very destructive disease that affects leaves, nuts and branches, especially in wet, humid environments. You may not be able to completely eliminate the disease, but you can reduce the presence of pathogens, thereby minimizing the risk of pecan powder mold.

If you are planting new hickory trees, always start with disease-resistant varieties. Your local cooperative promotion office can provide advice on the best varieties in your area. The plant hickory trees get the best ventilation there. Leave enough space between the trees. Similarly, thin and prune trees to maintain a healthy airflow. Keep the area clean. Remove debris from the ground around the tree because leaves, branches, nuts and other plant substances may contain pathogens. Dumping debris into the soil may help prevent infection. Implement the fungicide spray plan. Your local cooperative promotion office or knowledgeable greenhouse or nursery can help you determine the best product for your specific situation. Once the tree emerges from dormancy in early spring, the first spray treatment should be in the pre-pollination stage. Fungicides were re-applied two and four weeks later. At this point, spray once every three weeks for the rest of the growing season.

Read the label carefully and use appropriate tools to spray fungicides. Spray the trees thoroughly to form a film on the surface of all the leaves.