Noxious Weed Control

Weed Advisory Board

Dave Wattenbarger, Chair
Ben Nystrom
Larry Copeland
Patrick Gardiner
Tim Dillon
Erv Madson
Phil Allegretti
Ty Iverson

Thank you gentlemen for your time and cooperation!

It's war again ... against weeds
Spring time is almost here. Don't forget to manage your weeds. If you need help call Dave at the Extension Office, (208) 267-5341, or send him an email to

The Neighborhood Cooperative Weed Program is taking applications. You can pick up one at the U of I office behind the courthouse. This is a fantastic program where qualified applicants can receive reimbursement for chemicals purchased up to $500, depending on funding received from the Idaho Department of Agriculture. This year we will also be reimbursing for pasture seed after weeds have been controlled. Applications must be returned by March 31st.

In 2017, 31 landowners treated over 1000 acres in Boundary County, receiving $10,000 in reimbursements for herbicides purchased.A total of $20,893 of in-kind was contributed by private landowners to this project.

The Boundary County Weed Department is also very active in the use of Bio Control of noxious weeds. In 2017 the department released over 1600 agents on 10 separate sites. Private landowners released an additional 600 cyphos on their property for the control of spotted knapweed. A viable nursery site has been established at the deep creek resort area. A total of 80 acres were treated using bio control at a cost of $0 thanks to the Nez Perce Tribe. A new insectory was set up on Katka for Knapweed agents.

Let us help you with your weed concerns!

Spray Rentals Price Sheet

(Prices do not include sales tax)






3   $5.00
Backpack 3   $5.00
Backpack 3   $5.00
Backpack 3   $5.00




Electric 15' boom jet


Slip-Tank, Slide-in

60 Electric, 10' boom $20.00
3-point hitch 55 Electric, 10' boom $20.00
Slip-Tank, Slide-in 60 Gas, boomless $20.00

Slip-Tank, Slide-in

100 Gas, 200' hose $20.00

Slip-Tank, Slide-in

300 Gas, 21' boom $50.00

Boundary County is committed to the control of the spread of noxious weeds, which are plant species not native to the area and which cause harmful effects on native flora and fauna. Since 1994, 64 of these plant species have been designated as noxious weeds by Idaho law; several of which exist in Boundary County. Noxious weeds cost Idaho farmers over $200 million per year in crop losses, an amount which would be greater if not for the expenditure of over $50 million each year in noxious weed suppression. In addition, noxious weeds adversely impact wildlife habitat and recreational areas.

While Boundary County does spray and utilize other methods to control and contain noxious weeds on public property and rights of way, it is the responsibility of each property owner to ensure that noxious weeds are controlled on their land. The Boundary County weed superintendent can be of great help in assisting property owners determine the most efficient and effective method of controlling noxious weeds, and in helping property owners identify noxious weeds.

If a property owner fails to take steps necessary to contain, eradicate or control noxious weeds, Idaho law allows the county, at the discretion of County Commissioners upon advice from the weed superintendent, to take those steps deemed necessary at the property owner's expense; if these expenses aren't met, a lien will be placed on the property, which could lead to foreclosure.

To find out what weeds are listed as noxious in Idaho and Boundary County, use the "Noxious Weed of Boundary County" link in the upper right hand corner to find out more about some of the more prevalent noxious weeds found in Boundary County, including photos and methods of control. Full list of weeds is under "Noxious Weed List"

If you do not wish to have herbicides sprayed on county-owned rights of way adjacent to your property, click the "No Spray Agreement" link in the upper right hand corner for a printable form, which should be submitted to the Weed Control Superintendent. These forms must be filled out each year.


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