Is this fire blight? - Ask Extension
I’m trying to identify the disease my crabapple has and options for management (if any). It is a very mature tree and the fungus is throughout the e...
Knowledgebase
Is this fire blight? #869403
Asked May 21, 2024, 9:15 AM EDT
I’m trying to identify the disease my crabapple has and options for management (if any). It is a very mature tree and the fungus is throughout the enter tree.
Hennepin County Minnesota
Expert Response
It is possible. I'm not seeing the shepherd's crook appearance of branches as would be typical of fireblight. Also, typically, a few branches are infected first, and I'm not seeing that. Read here:
https://extension.umn.edu/plant-diseases/fire-blight
There are many other diseases and insects which could be affecting your tree. If the tree is quite old, it could be reaching the end of its natural life span. Here is a good diagnostic page:
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/crabapple/
If the tree is important to you, you could have a certified arborist look on site for a definitive analysis:
https://www.treesaregood.org/findanarborist/findanarborist
https://extension.umn.edu/plant-diseases/fire-blight
There are many other diseases and insects which could be affecting your tree. If the tree is quite old, it could be reaching the end of its natural life span. Here is a good diagnostic page:
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/crabapple/
If the tree is important to you, you could have a certified arborist look on site for a definitive analysis:
https://www.treesaregood.org/findanarborist/findanarborist
