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Coronavirus COVID-19

COVID-19 Advisory: WSU Extension is working to keep our communities safe. All Extension programming is being provided virtually, postponed, or canceled. Effective March 16, 2020, WSU Extension county offices and WSU Research & Extension Centers will be closed to the public. We are available via email, phone, and webconference.

Pesticide License Recertification Credit Classes

Program Contact: Nils Johnson, Extension Coordinator
(509) 684-2588 •

WSU Stevens County Extension 2019

Pesticide License Re-certification Event


Details Related to this Event

Each of the two evenings of our Pesticide Recertification event are stand-alone.  By WSDA rules (not ours) attendees are required to attend all three sessions on each evening to receive any credits for that evening.  Each 50-minute session will provide one pesticide credit, so a total of three credits for each of the two evenings (a total if six if you attend both evenings).

No preregistration is necessary and there is no fee to attend.

We’re located just west of the round-about that’s on the south end of Colville in the same parking lot as Grocery Outlet.  The physical address of our facility is 986 S. Main, Suite D, Colville WA.


Agenda for Tuesday December 3rd, 2019

3:00 – 3:50 Topic:   Herbicide Resistance: Implications for Weed Management in Wheat

Presented by Dr. Drew Lyon, WSU Professor, Endowed Chair Small Grains Extension and Research, Weed Science


Herbicide resistance threatens the sustainability of cropping systems in the PNW. This presentation will discuss how herbicide-resistant weeds develop, the history of herbicide resistance, and the current status of herbicide resistance in the PNW. It will also explain how wheat growers can use integrated weed management practices to manage weeds and slow the development of herbicide-resistant weeds.



4:00 – 4:50 Topic: Pesticide Safety

Presented by Dr. Iris Mayes, University of Idaho Extension Educator, Horticulture & Small Farms


In this workshop, we will we will review the top ten actions you can take to prevent chemical exposure while working with pesticides. Please bring some of your own ideas to share. We will discuss work-day and post-work habits to keep you and your family healthy with a few compelling stories from the field.



5:00 – 5:50 Topic:  Integrated Weed Control in Cereal Grain Production

Presented by Aaron Esser, Area Extension Agronomist, WSU Adams/Lincoln Area Extension


This talk will focus on both grassy and broadleaf weed control using chemical and cultural controls in cereal grain systems.  It will use real examples from the WSU Wilke Research and Extension Farm were we have a very intensive weed control system throughout the complete cropping system that included using broadleaf crops such as canola as a valuable tool to combat weed pressure and minimize the potential for herbicide resistance. Aaron will cover the Clearfield wheat system, the CoAxium wheat system, and the traditional system during this presentation.

Agenda for Tuesday December 10th, 2019

3:00 – 3:50 Topic: Pesticide Update

Presented by Joel Fields, Wilbur-Ellis Company


This presentation will talk about new pesticides, label changes and give an update on glyphosate in the news. Pesticides discussed will include Roundup, Esplanade 200SC, Esplanade EZ, and Cheetah Pro.


4:00 – 4:50 Topic: Adjuvants for Better Pesticide Performance

Presented by Joel Fields, Wilbur-Ellis Company


This presentation will discuss using adjuvants to get the most out of the pesticides you use. Water quality, deposition, drift management will all be explained.  Adjuvants presented will include Syl-Tac EA, Crosshair, Climb. Bronc Max, Rainier EA and Efficax.



5:00 – 5:50 Topic:  Weeds that Tend to Invade Hay Crops

Presented by Cindy Jennings, Stevens County Weed Board


This presentation will focus on identification of Noxious Weeds in our area that are likely to invade hay fields. Included will be identification of Class A and B designate, including Class B and C Select Weeds.  This session will end with a quiz to help attendees evaluate their own weed identification prowess!