Forest & Grassland Health

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. We work under the State and Private Forestry organization of the USDA Forest Service and are part of the National Forest Health Protection Program. We assist with forest health issues particularly related to forest and range disturbance agents that include native and non-native insects, pathogens, and invasive plants. We primarily assist Federal and tribal land managers directly and cooperate with State Forest Health specialists who assist primarily state and private land managers. 

Our specialists include entomologists, plant pathologists, pesticide specialists, GIS specialists, aerial survey specialists, and biological technicians located in four field offices: Boise, Idaho; Coeur d’Alene, Idaho; Missoula, Montana; and Ogden, Utah. See map for field office locations and respective service areas.

Technical Assistance

  • Detect, monitor, evaluate, and report potentially damaging forest diseases and insects
  • Site visits, training, workshops, presentations, and publications tailored to meet various audiences
  • Develop effective management strategies for forest insects and diseases
  • Integrate and monitor biological control for invasive weed management
  • Pesticide and pheromone use and coordination
  • Participate in forest planning and implementation efforts

Financial Assistance

  • Insect and disease suppression, prevention and/or restoration projects technology for management of forest insects and diseases and invasive weeds
  • Developing or applying new technology for management of forest insects and diseases and invasive weeds

Image of the Field Office locations


Key Resources

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. A national report, Major Forest Insect and Disease Conditions in the United States, is produced annually.

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

Identification and Management Guides

Need help with identification or management of a forest insect or disease in the Northern and Intermountain Regions? Check out these identification and management guides:

Publications and Reports

Search for publications by Region 1 and Region 4 Forest Health Protection.

Aerial Insect and Disease Detection

The Forest Health Protection Aviation Program conducts annual forest insect and disease detection surveys using aerial sketchmapping techniques across approximately 80 million forested acres of all land ownerships in the Northern and Intermountain Regions. The regional surveys have slightly more details than the national data sets.  The data from these surveys are used in forest insect and disease condition reports and are available at:

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 addfiles that are specific to the Northern and Intermountain Regions, training documents and videos, as well as guidance and interpretation assistance of FVS model outputs.