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Forest Health

Forest Health Condition Reports and Forest Health Highlights

Forest condition reports are developed in collaboration with state partners and provide updates on the status of major forest pests within the Northern and Intermountain Region by state. Learn more about Major Forest Insect and Disease Conditions in the United States.

For more information on forest health conditions in your state, select the links below:

Guides 

Aerial Insect and Disease Detection Survey Data

The Forest Health Protection Aviation Program conducts annual forest insect and disease detection surveys using aerial sketch mapping techniques across approximately 80 million forested acres of all land ownerships in the Northern and Intermountain Regions. The regional data has slightly more details than the national data sets. For more information on the regional aerial insect and disease program, data and maps select the link below.

Forest Vegetation Simulator Models

The Forest Vegetation Simulator (FVS) is a forest growth simulation model. It simulates forest vegetation change in response to natural succession, disturbances, and management.  Forest Health Protection staff can provide add files that are specific to the Northern and Intermountain Regions, training documents and videos, as well as guidance and interpretation assistance of FVS model outputs.

Reports and Publications

Note: These reports, tools, and publication links will open on the Pinyon Public website.

Regional Reports

Reports documenting regionally specific models, pest events, and pilot projects.

Tools and Brochures

Management guides for many of the tree insect and diseases that are in the Northern and Intermountain Region. Supplemental brochures are also available. 

Biological Control

Reports documenting regional biological control activities.

Forest and Grassland Health Protection Program

Forest Health Protection in the Northern (Region 1) and Intermountain (Region 4) Regions provides technical and financial assistance for all land ownerships within these regions. 

Other Links of Interest

Last updated April 7th, 2025