Upper Payette Cooperative Weed Management Areaupdated: June 2015

The Upper Payette Cooperative Weed Management Area (UPCWMA) was developed to advance the effective treatment and coordinate control on a watershed scale. The UPCWMA has developed common management objectives, set realistic management priorities, and identified priority weed species.
The goals of the UPCWMA are:

  • Prevent the introduction, reproduction and spread of noxious weeds and invasive exotic  plants;
  • Reduce the extent and density of established noxious weeds to levels that are acceptable;
  • Implement the most economical and effective control methods for target weeds;
  • Implement an integrated management system using appropriate methods of treatment and control;
  • Educate the public as to the importance of proper weed management and get the needed media coverage to show what is being done.

The UPCWMA includes portions of Valley, Boise, and  Gem Counties.

The primary weeds of concern in the area include Whitetop, Leafy Spurge, Spotted Knapweed,Yellow Starthistle, Scotch Thistle, Canada Thistle,  Rush Skeletonweed, Dalmation Toadflax and  Yellow Toadflax.

Weed Superintendents

  • Valley County
    • Curtis Bennett     
    • cbennett@co.valley.id.us
    • PO Box 1350           
    • Cascade, Idaho 83611     
    • Office Phone: 208-382-7195       
    • Cell: 208-271-6247
  • Gem County
    • Jake Wyant           
    • gcwc@qwestoffice.net
    • 125 E. Dion           
    • Emmett, Idaho 83617
    • Office Phone: 208-365-4201       
    • Fax: 208-365-2690     

County Contact Information   

  • Boise/Gem County Extension Office
  • Valley County Extension Office

Contact Upper Payette Cooperative Weed Management Area

Mike Bottoms, Executive Board Representative
Boise County Weed Superintendent
PO Box 309
Horseshoe Bend, Idaho  83629
Phone: 208-793-2447
Cell Phone: 208-870-1044
Fax: 208-793-2501


Service Area

Services provided in:
  • Boise County, Idaho
  • Gem County, Idaho
  • Valley County, Idaho

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

pdf Upper Payette Cooperative Weed Management Area: 2009 End of Year Report