Our serviceberry tree has started to develop yellow leaves. Started out as just a few leaves, but seems to be speeding up. Over the weekend several branches yellowed. Tree bloomed normally in spring and has a lot of berries. It’s about 15 years old.
Hennepin County Minnesota
It could be caused by several things: root rot, too much water, too little water when there is no rain or stem girdling.
Is there anything we can do to help it? Should we be concerned that the tree will die if we do nothing?
It is possible to excavate very gently around the base of the tree and look for rot. Monitoring the amount of water the tree is getting by checking soil moisture before watering will rule that out. I would also check to make sure a rodent hasn’t been gnawing in the bark and girdling it. Hiring an arborist to look at the tree can be helpful.