The audience for this course is urban pesticide applicators, Master Gardeners and other state extension educators.

Students will learn to calculate pesticide applications using real equipment calibration examples.

By the end of the series, you will be able to:
•       Calculate basic pesticide math.
•       Calibrate yourself to your equipment.
•       Calculate pesticide applications.

These courses are built for a desktop computer.

For more information, please contact Kimberly Tate University of Idaho Extension, Associate Sr. Instructor by email at

A chemigation license is required for both private applicators and professional applicators if you plan to chemigate with any type of fertilizer or pesticide.  This module will prepare you for the Idaho State Department of Agriculture Chemigation Exam.  It is recommended that you read the Idaho Chemigation Training Manual in addition to watching this module.  Some exam questions will also be based on information in the Idaho Pesticide Applicator Training Manual.

You should expect to spend about 60 minutes in this course. Several topics covered are: Idaho’s laws, rules and requirements; sources of water back flow; back flow prevention; chemical injectors and tanks; field topography, soils, and chemical leaching; pesticide label requirements; and calculating field size and application rates. When you are finished listening to the course, you will be able to print a certificate with your name and date completed.

If you have questions related to this course, please email:, Extension Pesticide Coordinator, University of Idaho Pest Management Program.

You can visit our website at

Idaho Master Gardener (MG) Pesticide Safety Education Course Site houses the university Pesticide Policy module and the Idaho MG Handbook chapter 9 Using Pesticide Safely module. The Idaho MG will learn the university pesticide policy instructions and how it relates to making pesticide recommendations, plus learn basic pesticide safety practices. For more information contact: Kimberly Tate, Associate Extension Sr. Instructor for the University of Idaho Extension Pest Management Program at

The audience for this course is: Individuals who are preparing to test for the Idaho pesticide applicators certification, private applicators and professional applicators who want to test for the Law and Safety category.

By taking this course, students will learn: To prepare individuals who are testing for the Idaho Private Applicator and Professional Applicator Law and Safety certifications.

For more information please contact: Ronda Hirnyck

The fee for this course is $35. To purchase and enroll in the course, click the following button:

The 2023 Pesticide Pre-License Course is only available to those who have pre-registered with the University of Idaho Extension  This course is designed to be both live with instructors and work on your own, at your own pace.  The course will help you learn core pesticide safety practices and prepare you for the Idaho State Department of Agriculture (ISDA) pesticide exams; Private Applicator (RU), Professional Applicator: Law and Safety (LS); Agricultural Herbicide (AH); Agricultural Insecticide (AI); Ornamental Herbicide (OH); Ornamental Insecticide (OI); General Pest (GP); Right of Way (RW); and Chemigation (CH).

This is a four-day class (Monday-Thursday) with instructors for 5 hours each day.  On Friday, the fifth day, the instructors will be available to answer questions.  Each person enrolled in this course will be provided handouts for class activities, including practice math problems.  Additionally, this course provides access to the 12 University of Idaho online instructional modules that supplement the class discussions.