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
- What causes holes in the trunk of my aspen tree?
- We moved two Moab two years ago. My husband wants to grow a nut tree on the southwest side of our house that is just bare dirt and gravel now. We also want a shade tree (no fruits or nuts) in our front yard that faces South/Southeast to give our house shade. I am originally from Utah County and I miss my trees! Is there anything comparable that would grow here in the clay?
- We have clover infesting our grass. Each clover plant has these pod-like objects, that when picked or brushed up against causes white larva-like and red seeds to hop or pop off. The red seeds stick to skin and clothing and is irritating to the skin. The clovers also have little yellow flowers that sprout. How do we get rid of these clovers so we might play and use our lawn again. How do you keep them from coming back?
- I want to replace a sickly globe willow tree in my front, south-facing, sloping lawn. There are underground utility (water, gas, sewer) and irrigation lines running through the area. What trees would work best in this area?
- I live in Riverton, and have areas in my lawn that are brown and sparse. I planted the lawn from seed, a Kentucky bluegrass blend I bought from a nursery, at least 10 years ago. It grows well in cooler weather, but by summer it looks dead in patches and is stiff, not soft lawn for the kids to play on. I would like to put down some patch seed, but don't know what kind to use and how is the best way to plant. Do I have to take out the old lawn or can I just sprinkle it on and cover with a little bit of soil. Also, is there any way to control the wide leaf weed that grows throughout my lawn as well as the entire neighborhood?
- When is the best time to plant my grass in the spring? And how much fertilizer should I put on if any?
- 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?
- We planted a new yard with several pine trees this last Fall - including sub-alpine, a young cedar, douglas fir, and a couple of sequioa .... along with the traditional small conifer bushes. With the recent wind and the sensitivies of the sub-alpines and sequoia I wanted to be sure that I fertilized, etc., a needed (watered them a little today due to strong winds).