Sulfur Cinquefoil

Plant Overview–

Sulfur cinquefoil has plagued Asotin county for decades and is among the worst offenders in the western United States. Boasting a pale, sulfur-yellow, 5-petaled  flower this perennial member of the rose family will invade gravelly and poor nutrient soils as easily as it will dense grass stands and pastures. Unpalatable to cattle and most grazing animals, sulfur cinquefoil can dominate pastures if left unchecked resulting in greatly reduced production capacity. Reproducing primarily by seed though also by root this species is a class “B Selected” noxious weed in Asotin county which is to say that it is abundant in the county and containment on a site by site basis is the primary goal. These characteristics along with its versatility and capacity to thrive in widely varying conditions grants this species its rightfully earned priority status in our area.

Cost-Sharing Details–

*NOTICE* Funding has ended for the 2018 Cost-Share Programs. Funding is expected to begin again in 2019 for the Cost-Share Programs.


Benefit- The ACNWCB offers a 1:1 dollar matching rate up to a $500 expense by the weed board per landowner (e.g. ACNWCB contributes $500, landowner contiributes $500)  for the treatment of sulfure cinquefoil. Expenses beyond this $500 ACNWCB cost-share limit will be the responsibility of the landowner. Treatments/projects are not limited to $1000, however, the landowner will be fully responsible for expenses beyond this amount.

Work will be done on a first-come first-serve basis until funds are exhausted or environmental conditions prohibit treatment.

How to Apply–

Complete and submit both forms below and coordinate with the Program Coordinator for mapping of your treatment area. Be sure to agree to and e-sign the “Herbicide Application and Cost-Share Contract” on this page!

Herbicide Application and Cost-Share Contract

[swiftsign swift_form_id=”1283″]
I, [swift_name size=”medium”], as the landowner or individual assigned as manager of the property, agree to the following terms set forth by the Asotin County Noxious Weed Control Board:

Initial:[swift_initials] I will be responsible for the costs of all off target herbicide damage from aerial or ground application by providing sufficient maps of desired application area and/or coordinating directly (in person) with the applicator and/or program coordinator for the Asotin County Noxious Weed Control Board (damage caused by malfunction of spray equipment or pilot error is the applicator’s responsibility.)

Initial:[swift_initials] I acknowledge that due to flight variables the pilot will not give notice to me before the aerial application occurs.

Initial:[swift_initials] I will inform the applicator of any necessary concerns or information including but not limited to: boundaries, sensitive plants, crops, animals or management areas, potential sensitive adjacent property cropping rotations or any additional item the owner or manager deems to be a necessary concern. The landowner or individual appointed as manger of the property will not hold the applicator responsible in regard to grievances that are not expressly communicated as necessary concerns.

Initial:[swift_initials] I will hold harmless, indemnify and defend Asotin County and the Asotin Couny Noxious Weed Control Board, its officers, officials, employees and agents from and against any and all claims, actions, suits, liability, loss, expenses, damages and judgements of any nature whatsoever including reasonable costs and attorney’s fees in defense therof, for injury, sickness, disability or death to persons or damage to property or business caused by or arising out of Landowner/Operator/Applicator’s acts, errors or omissions.


I agree to the terms of the Herbicide Application and Cost-Share Contract above