Cold, Wet Spring Causes Trouble for Minn. Trees
Our cold, wet spring is contributing to a disease spreading in Minnesota trees.
Anthracnose disease affects popular shade trees, causing new green leaves to turn brown and fall.
Plant pathologist Michelle Grabowski of the University of Minnesota's extension school says, "it's caused by several different fungi. They're are several different trees including ash, maple and oak that are showing symptoms of disease."
Grabowski says the disease has been reported in several other states in the region including Ohio, Illinois and Wisconsin. Now, she says it is starting to affect trees in our state.
Rainbow Tree Care company reports a 50% increase in calls for anthracnose this year compared to previous years. They and similar companies offer fungicidal treatments, among other solutions.
Arborists warn that anthracnose could be confused for emerald ash borer. So before having a tree chopped down, you're advised to call an arborist for an assessment.
If anthracnose is the culprit, Grabowski says leaves will re-grow and the tree should survive.