Forest Health

A healthy forest is a productive forest

Maintaining a healthy forest is an important objective for most forestland owners. In this section, we provide resources to help answer questions about forest health, such as:

  • Are your trees healthy or not? How can you tell?
  • What are the most common tree health problems, and why do they occur?
  • How can you maintain healthy trees and prevent future problems?
For more information, please conact:
Oregon State University Extension Forest Health Specialist

Check out Forest Health in Oregon: State of the State 2022 conference presentations!
Interested in previous years? State of the State 2020 conference presentations! Want more? Read this blog post for a summary of the 2020 conference, "A healthy forest is no accident."

Check out Forest Health Summary for the Pacific Northwest Region 2022 Story Map created by USDA Forest Service: Forest Health Protection, Oregon Department of Forestry,
and Washington State Department of Natural Resources. 

FOREST HEALTH BY REGION

FOREST HEALTH RESOURCES

Sources KeyODF- Oregon Department of Forestry; USFS- USDA Forest Service; OSU- Oregon State University; FIDL- Forest Insect and Disease Leaflet (USFS); WSU- Washington State University; UC- University of California; NRC- Natural Resources Canada; CSU- Colorado State University; FP- Forest Pests Website; USDA APHIS- USDA APHIS; NAPPO- North American Plant Protection Organization

General Forest Health Information

Explore these links to find general forest health information and individual publication on specific diseases and insects.

Tree Specific Resources

Disease

General Disease Resources

Root Diseases

Rots and Decays

Foliage Diseases

Cankers

Rusts

Seedling Diseases

Insects

General Insect Resources

Bark Beetles

Wood Borers

Defoliators

Seed and Cone Insects

Shoot and Twig Insects

Sucking Insects

Mistletoes

Invasive Species

General Invasive Species

Diseases

Noxious weeds​​

Insects​

Vertebrate Damage

Abiotic Damage

Climate

 

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