Ask a Question
Notify Me On Question Update
Email this Question
What is causing the holes in my peach and cherry trees?
Rate This FAQ
It sounds like the disease is shot-hole, or Coryneum blight (Wilsonomyces carpophilus). This fungus attacks apricots, peaches and nectarines. Classic symptoms include gummy resin-like material on buds and stems that have been infected. The leaves develop red spots or initial infections that expand into lesions. Eventually, the lesions abscise and fall out creating a shot hole appearance, which is what you are seeing. Lesions can form on buds, stems, and fruit. This pathogen spreads in moist wet conditions.
Homeowner control of this disease is primarily based on cultural management. Prune out all diseased wood in early spring. Continue pruning visible infections during the growing season, but only when the weather is dry to prevent spread. Use a 10% bleach solution to disinfest the pruners after each cut. Remove all infected branches from the property. This will reduce the amount of spores available for infection. Irrigate at ground level to avoid wetting the leaves and branches. This helps to reduce the spread of spores. Limit the amount of nitrogen applied to the tree. Rapid growth promotes fungal development.
If necessary, captan is a contact fungicide that is available for homeowners and can be applied during the growing season starting in spring. Multiple applications may be necessary. Read the label carefully for application instructions.
Submit Your Suggestion
Other Questions In This Topic
- Is it workable to grow scrub oak from acorns, and if so, I'd appreciate direction. I live near Foothill Drive in SLC.
- I have about an acre of commercial property that I want to control all vegetation. Is there a good ground sterilizer on the market? Where can I purchase it?
- How is the best way to kill morning glory weeds in a new lawn?
- I moved into my house, from out of state, with a yard full of weeds (dandelions, morning glories, etc.) When would be a good time to treat them? Before or after winter hits? Any suggestions of products to use? Thanks!
- I have rings in my lawn that are about two feet wide. I suspect they are fairy ring, but the description for fairy ring doesn't quite fit. The inside of the circle is not lush and green, it looks the same as the rest of the lawn. There is just a semi-dead cirle surrounding good lawn. Do you have any help for me.
- What do the numbers on the fertilizer package mean?
- Why do lilacs do so well?
- we would like to plant a cherry tree in our backyard for the fruit and the shade. what would be the proper kind to purchase,we like sweet cherries.