County Weed Board

The Columbia County Weed Board, located in the County Extension Office, provides information and resources concerning weeds within Columbia County. Regular board meetings are the 4th Wednesday night at 7:00 p.m. of each month.

Weed Board Director, Rachel Hutchens

Board Members include

  • Rick Turner, President
  • David McKinley, Vice President
  • Bill Warren, Secretary
  • Josh Bowen, Member
  • Matt Talbott, Member


Fall 2017 Yellow Starthistle Program

The Weed Board is offering a Spring 2017 Yellow Starthistle Cost Sharing Program to aid in the control of the Class “B” weed Yellow Starthistle. The Weed Board is accepting applications from September 5th through September 25, 2017 for chemical control. Print applications and information on this program using the links below. Be sure to include a color map with your application and turn it into the Weed Board office anytime during the Columbia County Extension office hours. Rachel will be at the Weed Board Office Monday, Tuesday and Thursday from 8:30 a.m. to 12:00 and 1:00 to  4:30 p.m, and Wednesday from 8:00 a.m. to 3:00 p.m.You can also email completed applications and maps to or mail them to 137 E Main Street, Dayton WA  99328.

The program information including prices of chemical and aerial application are shown as links below.

2017 FALL YST App Revised

2017 Fall YST Letter Revised

As always, do not hesitate to call with any questions or to make an appointment. The office number is (509) 382-9760.

Applications and Program Guidelines are also available to print from this site. Please see the links below

The Yellow starthistle cost share program is opened for applications in the fall and in the spring. The total Acres sprayed in both the Fall 2017 and Spring 2018 programs are combined and cost shared at a rate per acre set by the Weed Board. For more information or questions please call Rachel Hutchens at the Weed Board Office.

Rachel Hutchens, Columbia County Weed Board Coordinator
Call: (509) 382-9760

Reimbursement programs

Mediterranean Sage

Mediterranean sage is a designated as a Class A weed by the Washington State Noxious Weed Control Board. It is an aggressive species that is not palatable and out-competes desirable forage plants in dry pastures and range-lands. Mediterranean sage reproduces by seed and acts like a tumbleweed to disperse its seeds.

The Columbia County Weed Board offers a cost share program for the control of Mediterranean sage in Columbia County. Please see the application for chemical control of Mediterranean sage below:

2016 cost share applications-med sage

Mediterranean sage 1                      Mediterranean sage 2

          Blooming Mediterranean sage                         Dense stand of Mediterranean sage rosettes


Class B Designated Weeds

The Weed Board also offers cost sharing for two other Class B weeds other than Yellow Starthistle. Those weeds are Japanese/Bohemian Knotweed and Leafy Spurge.

Knotweed     leafy spurge

Reimbursement for the control of Japanese/Bohemian knotweed and Leafy spurge in 2014 is as follows:

  1. 100% of herbicide cost the first treatment year.
  2. 75% of herbicide cost where treatment is needed the second season.
  3. In year 3 and following years, herbicide cost share will be evaluated on a case by case basis.
  4. Owners/operator is responsible for 100% of application costs for all years.