Knowledgebase
Crab Apple Tree Wilt #876001
Asked July 05, 2024, 12:22 PM EDT
Hennepin County Minnesota
Expert Response
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/crabapple/leavesbrown.html
https://extension.umn.edu/plant-diseases/fire-blight
The plant disease clinic can give you a definate diagnosis for a fee.
https://pdc.umn.edu/