Inland Empire Cooperative Weed Management Area

The Inland Empire Cooperative Weed Management Area (IECWMA)is located in the central portion of the Idaho Panhandle, covering an area of 4,665 square miles in Benewah, Kootenai and Shoshone Counties.

Our goals are:

  • Prevent the introduction, reproduction and spread of noxious weeds or invasive, exotic plants using early detection/rapid response (ED/RR).
  • Reduce the density of established noxious weeds to manageable levels through the most economical and effect methods of treatment, using the integrated pest management model.
  • Educate the landowner (whether public or private)about the importance of weed management, through presentations and programs, the media or internet.

Major weeds of importance are focused on through our weed control projects. Projects in the IECWMA range from

  • Riparian plant control of viper’s bugloss (blueweed) and Japanese and/or Bohemian knotweed in the Coeur d’Alene River Basin;
  • Open-range and right-of-way weed control of spotted knapweed, hawkweeds, rush skeletonweed and Dalmatian toadflax;
  • Mountainous, forested lands with weeds such as Canada thistle, tansy ragwort and hawkweeds Railways and non-cropland covered with leafy spurge.

Weed Superintendents

  • Benewah County
    • 376620 Hwy 95      
    • Desmet, Idaho 83824
    • Cell: 208-651-3247
    • Fax: 208-274-2101        
  • Shoshone County
    • Carol Young            
    • 700 Bank Street    
    • Wallace, Idaho 83873    
    • Office Phone: 208-753-5475        
    • Fax:208-753-1011    
    • Cell: 208-659-7075

County Contact Information

  • Kootenai County Extension Office
  • Benewah County Extension Office
    • Address: Courthouse (701 College Ave.)
    • St. Maries, ID  83861
    • Phone: (208) 245-2422
    • Fax: (208) 245-0604
    • Email:
    • Web Address:
  • Coeur d'Alene Extension Reservation Program
  • There is no Shoshone County Extension Office.

Contact Inland Empire Cooperative Weed Management Area

Bill Hargrave
Kootenai County Weed Superintendent
10905 Ramsey
Hayden, Idaho  83835
Phone: 208-446-1290
Fax: 208-446-1282


Service Area

Services provided in:
  • Benewah County, Idaho
  • Kootenai County, Idaho
  • Shoshone County, Idaho

To request additions or corrections to this entry email the Administrator
1 Introductory article was found for Inland Empire Cooperative Weed Management Area

pdf Inland Empire Cooperative Weed Management Area (IECWMA): Cost-share Grant End-of-Year Report 2009