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
- My euonymus has a white powdery film on the leaves, what is it?
- I live in South Jordan. 4 1/2 years ago I started watering my yard with gray water (irrigation) due to the cost of water. Since that time I have lost 6 red twig dogwoods, 7 blue arctic willows,3 spireas, a pine tree and a Japanese maple. Everything else does not look good (other trees, bushes and perennials). In the spring it all starts out green but by June everything has brown edges on yellowing leaves and the trees have several dead branches. Could the gray water be the culprit? Everything was at least 6 years old, lush, and healthy until I changed my water. I am afraid I will lose everything else this summer if I don't find a cure for this. I could you use some answers. Thank you.
- Leaves on my maple tree have turned yellow, but the veins are green. Is this an iron problem?
- My blue spruce shrubs are turning brown and look like they are dying. What is wrong?
- How do I prevent aspen sprouts from coming up in my lawn?
- Can you suggest some hardy perennials for my landscape?
- I have large steep slop in my backyard. I would like to plant a ground cover from seed. Is this possible. If so what kind would be best to keep weeds and bay, grow quickly and look appealing? I was wonder if Vinca Major or St johns wart would work? Thanks for your time Milt
- We live in West Jordan in an area with very clay soil. We would like to plant some low-lying evergreen shrubs in a narrow strip between our RV pad and a short vinyl fence. Do you have any plant recommendations that will work in our soil and don't require a lot of maintenence?