Ask a Question
Notify Me On Question Update
Email this Question
Apricots and peaches--what causes the reddish or purple-brown spots on new leaves, buds, shoots and fruit?
Rate This FAQ
It is called Coryneum Blight or "shot hole" disease. It is a fungus that infests during cool, wet springs. It first forms dark spots with brown centers on the leaves. These centers eventually fall out, leaving a "shot-hole" appearance. The fruit has rough, corky blemishes with a red ring around the spot. Control includes: keeping leaves and fruit dry from sprinkler spray, proper pruning, maintaining good tree vigor and a fall clean up of debris around the base of the tree. A fungicide maybe applied in the fall after all the leaves have fallen, again in the spring at pink bud stage, full bloom and when leaves begin to appear.
Reference: “Coryneum Blight of Stone Fruits”, at http://extension.usu.edu/plantpath/fruit_diseases/fd_coryneum_blight.htm
Submit Your Suggestion
Other Questions In This Topic
- Why is the timing of dormant spray important?
- I'm trying to identify the variety of peach my father has growing in his yard. It had a medium-sized fruit which ripened the first part of September, had exceptionally sweet yellow flesh, was a freestone variety with a red center around the pit. Can you help me?
- I live out in Magna and I was wondering if it's feasable and/or successful to attempt to grow a plum tree from a seed? When should I start?
- my pear trees leaves are drying up and falling off and now an oily sap is coming from trunk is this normal activity for prefall, if not what is problem?
- I have purchased a few acres in summit county at about 9500 feet elevation. The property is in the middle of a meadow, with no natural trees. I would like to plant some evergreen seedlings. Will they grow? I am wondering why the meadow would not already have these types of trees, if they would in fact grow there. Can you recommend the best type of tree for success, or am I better off saving my money? There are evergreens growing all around the meadow a few hundred yards away. Thanks.
- When should I spray my apple trees?
- My wife and I just planted an Autumn Blaze Maple at our home in Syracuse. Do you have any advice for caring for this particular tree? Both in the long term and short term?
- Mt aunt has a Italian plum tree. It is very old it has a lot of fruit on it all with little bumps on them. What is causing the little bumps and what is the regemine of what and when to spray if any?