Knowledgebase
Sparse leaves on crabapple tree #874702
Asked June 25, 2024, 7:53 PM EDT
Washington County Minnesota
Expert Response
https://extension.umn.edu/plant-diseases/apple-scab
For other possible problems see the following: https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/crabapple/
Some general things to do:
1. Pull the mulch back 6-8 inches so it is not touching the tree trunk. Mulch touching tree trunks can dehydrate trees and provide a place for rodents and disease.
2. Water the tree well when there is no rain.