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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. What type of Private Applicator License do you need?

Private Applicator

Limited and Rancher Private Applicator

For Public Operator tests, contact the WSDA Spokane Office for testing options.

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>

Pesticide Applicator Internet Recertification Courses
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.

Recertification Webinars

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. Attendance at these meetings may be eligible for recertification credits. Contact the Weed Board for more information.