Find Forest Health Help

For sick forest trees, contact a DNR forest health specialist or forester.

For sick yard trees, contact a certified arborist or visit the University of Wisconsin-Madison Extension's Ask Your Gardening Question page.

Forest health news and reports

Sick tree diagnostics

What's Wrong With My Deciduous Tree? [exit DNR] – University of Minnesota
What's Wrong With My Conifer? [exit DNR] – University of Minnesota
Plant Disease Diagnostics Clinic [exit DNR] – University of Wisconsin-Madison

Insect identification

What Insect Is This? - University of Minnesota
Insect Identification - University of Wisconsin - Madison
BugGuide.Net

Tree identification

Tree identification

Guidelines

Fact Sheets