Crabapple tree disease identification assistance - Ask Extension
Help please, trying to figure out what has infected most/all the leaves on our crabapple! I've tried comparing to images online but multiple disease ...
Knowledgebase
Crabapple tree disease identification assistance #869600
Asked May 22, 2024, 11:40 AM EDT
Help please, trying to figure out what has infected most/all the leaves on our crabapple! I've tried comparing to images online but multiple disease kind of seem similar. I think I've seen it on previous years but never to this extent. Trying to figure out if I need to do something about it or remove the tree, mostly worried about causing problems for our edible apples nearby. I've attached images
Hennepin County Minnesota
Expert Response
Good Morning Tony,
Thank you for contacting the U of M Extension Service.
From viewing your photos, I believe it could be apple scab: https://extension.umn.edu/plant-diseases/apple-scab
This information explains how to manage apple scab. If you read through the life cycle of apple scab, it is on point. You indicated you had it in the past and it was not as bad. This explains how the fungus grows and spreads.
Good Luck!
