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Spring Snow Crabapple leaf issues? #876936

Asked July 12, 2024, 9:26 AM EDT

Hello! We live in Medina, MN and planted three Spring Snow Crabapple last fall. They all seem to have an issue with their leaves as seen in the photo. Any idea what we might be able to do? They flowered as expected and have had a lot of rain this season. Thank you!

Hennepin County Minnesota

Expert Response

An apple leaf disease called scab is very prevalent this year because conditions have been favorable for its development. Unfortunately, Spring Snow is very susceptible to this disease.

Learn more here:
https://yardandgarden.extension.iastate.edu/faq/my-spring-snow-crabapple-bloomed-beautifully-spring-has-recently-begun-lose-many-its-leaves-why

Careful leaf cleanup may reduce, but it will not prevent or eliminate future infection.

Fortunately, ornamental crabapples affected by scab usually recover and bloom normally the following spring.

The following publication discusses scab and how to deal with it. 

https://extension.umn.edu/plant-diseases/apple-scab#fungicides-to-protect-ornamental-crabapples-from-apple-scab-3652960
An Ask Extension Expert Replied July 12, 2024, 10:55 PM EDT

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