Columbia County Weed Board is open to serve you, our doors will remain closed to the public as needed and communication will be conducted by phone, email, and texts.
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 third Tuesday of the month. Regular board meetings are held at 137 East Main Street, Dayton WA 99328. Board meetings are not held during the months of July and August.
Weed Board Coordinator, Naedene Shearer
Board Members include:
- Josh Bowen, Chairman
- Clayton McKinley, Vice Chairman
- Bill Warren, Secretary
- Rick Turner, Director
- Matt Talbott, Director
WSU PESTICIDE PRE-LICENSE REVIEW WEBINARS
WSU is offering two types of Pesticide Pre-License Review Webinars
Webinars for Private Applicators
• Select one of these dates: June 29, July 27, or August 31
• To take exams, you need to register with WSDA for their regular session or with your County Extension (if they are open for appointments).
Webinars for All Other License Types
• Webinar topic options: 1) Laws & Safety or Dealer Manager exams, 2) Weed Management exams, and 3) Insect & Plant Disease exams.
• Webinar dates are July 7, 8 or August 11, 12
• These webinar offerings include a testing session July 9 or August 13 in Olympia, Spokane, and Yakima.
• Before registering for the webinar: write down the license type and the exams you need. These questions are part of the webinar registration. The website above has a link to an exam selection checklist.
o License types: Private Applicator, Public Operator, Commercial Applicator, Commercial Operator, Private-Commercial Applicator, Dealer Manager
o Exam examples: Private Applicator, Laws & Safety, Agriculture Weed, Right of Way Weed, Turf & Ornamental Weed, Agricultural Insect & Disease, Ornamental Insect & Disease
For more information and to register, visit our webinar website:
Make sure you review the study materials before the webinar.
Poison hemlock can be deadly toxic to both people and animals. This toxic, noxious weed is thick around Columbia County and is still young and the leaves are at a basal rosette stage which is the best time to treat poison hemlock.
Poison hemlock is an invasive species that rapidly colonizes streambanks, vacant lots, roadsides, pastures, and meadows, especially where the soil is moist, out competing native plants and desirable species. It is a biennial plant, which means that it typically lives for two years. The first year it forms a basal rosette of leaves. The second year, it develops flowering stems and produces about a thousand seeds per plant.
Small patches of poison hemlock can be carefully dug up, making sure to remove the taproot. Always wear protective clothing and gloves to prevent accidental exposure to the plant’s toxic juices. Do not cut or mow the plants as they will only resprout. Dispose of plants in the trash. Toxins will remain potent in dried plant material. Never put pulled plants in the compost or leave them where livestock might eat them. There are a number of herbicides available for controlling poison hemlock in larger infestations. Always read and follow the label instructions before applying any herbicide product.
Plant grasses and other desirable vegetation to provide competition and help prevent further weed establishment at the site.
For additional information, contact the Columbia County Noxious Weed Board.
Information and photo: WA State Noxious Weed Control Board http://www.nwcb.wa.gov