Forest Insects and Diseases

Insects and diseases pose two of the most serious threats to a tree’s health. As soon as any abnormality is discovered in a tree’s appearance, measures should be taken to diagnose the problem.

Insects and diseases pose two of the most serious threats to your tree's health. As soon as you notice any abnormality in your tree's appearance, you must begin a careful analysis to gain an understanding of the problem. By examining the specific symptoms of damage and understanding their causes, you can make a reasonable diagnosis of the problem and select the proper treatment. If you are uncertain about the type of insect or disease, or do not know how to treat them, contact your local CSFS forester to conduct a homesite assessment of the trees on your property.

For more information, visit the CSFS Common Forest Insects and Diseases webpage.

For specific information about mountain pine beetle, visit the CSFS Mountain Pine Beetle webpage.