A fungal disease called plum rust but there are very few fungicides available for use on edible plants now. Rake up all of the fallen leaves and get rid of them. Apply a Winter Wash. Next year, sprays of Copper Mixture from Vitax after flowering may help.
Gardening Expert: |
If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here
We will try to get back to you with an answer as soon as we can.
Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.
Shinjuku Gyoen National Garden
Tokyo, Japan
Monet's Garden, Giverny
Giverny, France
Longwood Gardens
Pennsylvania, USA
Saint Petersburg Botanical Garden
Saint Petersburg, Russia
Desert Botanical Garden
Phoenix, Arizona, USA
The New York Botanical Garden
New York, United States