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


Douglas-fir Tussock Moth Story Map-Missoula 2019

DFTM Story Map-Missoula 2019

508 Accessible DFTM Report 20-03

Aerial Detection Survey Maps

Small image of the ADS user maps

2019 Aerial Survey Maps

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2019 Pest Update: Top kill in western larch

a brochure with a photo of western larch with dead and fading tops

Top kill in western larch casued by wood-boring moth.

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.