Forest & Grassland Health

Graphic of the states in Region 1 and 4

Northern Region 1 and

Intermountain Region 4









  • To facilitate stewardship, protection, and management of forested ecosystems by promoting forest health to federal, state, and private resource partners and customers in Idaho, Montana, Utah, Nevada, western Wyoming, and North and South Dakota.

  • To help people understand the effects various agents have on their forests, the alternatives they have to influence those effects, and ways that treatments can be integrated to meet multiple objectives. 

Region 1 and Region 4 FHP Strategic Plan 2015-2019


  • Forest Health Monitoring and Assessment
  • Forest Insect and Disease Services
  • Non-native Species or Invasive Species Management
  • Forest Health Education
  • Pesticide Use and Coordination


Forest Root Diseases Across the United States

Graphic of the US states with 11 color photos that showcase the most damaging forest fungi

Root diseases have long term impacts on the forested ecosystems.  They kill trees, decay wood, slow tree growth, predispose trees to other mortality agents.  This report highlights the biology, ecology, management options and future direction of the major root diseases found across the United States.

Forest Health Portal Mapping and Reporting

View insect and disease information and survey results through our new national portal.

Black insect on leaves


REVISED Using MCH to Protect Trees and Stands from Douglas-Fir Beetle

Paper briefly describes anti-aggregation pheromone(MCH) and how to use the material to protect live trees from infestations.

Improving Rangeland Health Through Biological Controls

Field instructors and students collecting insects

A Southern Idaho biological program that provides opportunities for local students to try out a career in natural resources.


Protecting Whitebark Pine from Mountain Pine Beetle using SPLAT

Poster with photos showing SPLAT application on whitebark pine trees.

Recently Forest Service Research and FHP staff tested using SPLAT Verbenone applications to protect Whitebark Pine from Mountain Pine Beetle. Click to view & print poster.

State Forest Health Highlights

Each state provides a yearly snapshot of the forest health issues and concerns.