September 10, 2021 23:43 Updated Follow If you have a tree that is showing signs of distress, insect damage or disease, your best sources of information are DNR's Division of Entomology (http://www.in.gov/dnr/entomolo/) and Purdue University's Diagnostic Lab (http://www.ppdl.purdue.edu/ppdl/). Related articles I want to fish and hunt; look for mushrooms; camp; hike on a coal mine. Who do I need to contact? Need Help? Have problems? Who do I call? What Agency? I want to construct a pond but don't know where to start, who should I contact? Are Indiana's forestlands disappearing? How much does it cost to register plate my vehicle?