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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 Licensing & Credits

Program Contact: Trevor Lane, County Director/Associate Professor
509-775-5225 x1116 •

How to Prepare for an Exam

There are two ways to prepare for WSDA (Washington State Department of Agriculture) pesticide exams although a combination of the two methods is highly recommended. You may obtain and study the corresponding Washington State University (WSU) exam study manual or you may attend a pre-license training course. WSU conducts statewide pre-license shortcourses in English each winter. Go to their website to determine availability of courses in your area. Brochures on these courses are mailed annually to all WSDA pesticide license holders.

To begin studying for the exam order your own study manuals through WSU Publications. You can also order the study manuals by downloading the WSU Pesticides Study Material Order Form, and either mail or fax the form with payment to WSU Publications. Limited and Rancher Private Applicator Licenses Fact Sheet

For Public Operator tests, the WSDA Spokane Office conducts testing sessions the first Wednesday of each month.

Search for a Pesticide License >
WSDA Pesticide Exams administered at the WSU Ferry County Extension office:

  • Private Applicator
  • Limited Private Applicator
  • Rancher Private Applicator

Recertification Credits


The WSU Ferry County Extension office offers a variety of ways for you to earn credits towards your pesticide re-certification. In collaboration with the Ferry County Noxious Weed Control Board, workshops are held throughout the year, including “Hands on Calibration” held at various locations throughout Ferry County each April in conjunction with Ferry County Pride Month. Weed Identification classes are occasionally held in the fall or winter. Most workshops offer 3 credits. WSU offers pre-license training and recertification courses throughout Washington State. Find out what courses are available. Course Calendar>

Ferry County Noxious Weed Control Board Meetings

Meetings are the 1st Wednesday of each month at various locations throughout Ferry County. For the next meeting date and location, contact the Weed Board Office at (509) 775-5225 x1111. Each meeting earns 1 credit.

Video Recertification

Call the WSU Ferry County Extension office to schedule a time to come and watch videos on a wide variety of topics, such as Calibration, Ground Squirrel Management, or A Balanced Approach to Noxious Weeds. Each hour of video earns 1 credit.

Internet Course

You can also earn credits by taking an Internet Course. Pre-license and recertification internet course modules are available for people in Washington and in other states. Pre-license modules are self-study courses that can be used in conjunction with study manuals to prepare for state pesticide exams. Internet recertification modules provide one state recertification credit and take approximately 50 minutes to complete.