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Introduction to Pesticide Resistance: Pesticide Recertification Course

Pesticide resistance is rapidly becoming a major obstacle in sustainable pest management.

Left unchecked, pesticide resistance can lead to increased costs, crop losses, and the risk of pest outbreaks.

Understanding and managing this challenge is essential for anyone working in pest management today.

Course Overview

This self-paced, 1-hour online course offers a comprehensive introduction to the topic of pesticide resistance, an issue that increasingly jeopardizes effective pest management strategies worldwide.

Designed for licensed pesticide applicators, consultants, and landscapers, this course covers the foundational concepts necessary to recognize, understand, and manage resistance in a practical, field-based context.

By exploring the mechanisms of pesticide resistance and its impact on pest populations, you will be equipped with the tools needed to implement effective pest control strategies while mitigating resistance.

Whether you are looking to renew your certification or expand your knowledge, this course provides a solid foundation for improving your pest management practices.

You will also earn one (1) continuing education unit (CEU) from the Oregon Department of Agriculture upon successful completion.

Key Benefits of Taking This Course

  • Stay Current and Certified: Earn 1 continuing education unit (CEU) certified by the Oregon Department of Agriculture.
  • Enhance Professional Skills: Improve your understanding of pesticide modes of action and resistance mechanisms to make informed decisions in pest control.
  • Real-World Application: Learn practical strategies that can be directly applied to your professional work, optimizing pest management approaches and extending the efficacy of pesticides.
  • Career Advancement: Improve your professional skills, making you a valuable resource for sustainable pest management in agriculture and landscaping.

Learning Objectives

By the end of this course, you will be able to:

  • Define “pesticide” and “pest,” with examples of different pesticides and their targets.
  • Understand the mode of action (MoA) and site of action of pesticides to determine how they disrupt pest biological processes.
  • Discuss how pesticides within the same group share properties, MoA, or site of action.
  • Clearly define “pesticide resistance” and differentiate it from tolerance and applicator error.
  • Recognize the importance of genetic variation in the development of resistance and how selection pressure favors resistant biotypes.
  • Distinguish between target-site and non-target-site mechanisms of resistance, and understand the concepts of cross-resistance and multiple resistance.

Pesticide Resistance Series

This course is the second in a four-course series on Pesticide Resistance.

This course was funded by the EPA’s Pesticide Environmental Stewardship Program (PESP))

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This course was developed by the Oregon IPM Center in the College of Agricultural Sciences.

OSU College of Ag and IPM Center logos

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This course is 100% online. Available on January 15, 2025.
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1 hour
location
Online
price (2)
$35
35
Additional Information:
1 CORE ODA pesticide credit.

Instructors

Dr. Silvia I. Rondon
Silvia I. Rondon is the Director of the Oregon IPM Center at Oregon State University (OSU) and a Professor and Extension Entomology Specialist in the Department of Crop & Soil Science. She has served as Interim Director of OSU’s Hermiston Agricultural Research and Extension Center. Silvia earned her B.A. and M.S. in Entomology from the Agraria University in Lima, Peru, and her Ph.D. in Crop Sciences with a major in Entomology and IPM, from the University of Illinois at Urbana-Champaign. In 2002, she worked as a Postdoctoral Associate in the Horticulture Department at the University of Florida and joined OSU in 2005. Her role encompasses research and extension, where she led the Irrigated Agricultural Entomology Program, securing over $35 million in private, state, and federal funding. Silvia’s expertise centers on IPM, focusing on insect ecology, insect distribution, population dynamics, insect-plant interactions, and biological and chemical control. She has collaborated with multiple commodity groups, including potatoes, grass seed, wheat, and high-value vegetables such as onions, sweet corn, hemp, and carrots. Her prolific work includes over 131 peer-reviewed scientific and extension papers, 13 book chapters, 158 non-peer-reviewed publications, abstracts, and reports; and numerous presentations, totaling over 311 across international, national, and regional platforms; and 174 invited extension presentations. 
Thomas A. Jima
Thomas A. Jima is Integrated Pest Management (IPM) Educator at Oregon State University – Oregon IPM Center. He holds an M.S. in Plant Biology with a specialization in Plant Pathology, an M.S. in Entomology, along with a B.S. in Plant Sciences. With over 10 years of international experience, Thomas has worked as a specialist advisor in agricultural development, research, project management, capacity building, and clientele management, with a strong focus on Plant Protection and IPM.
Dr. Aaron Becerra-Alvarez
Dr. Aaron Becerra-Alvarez is an Assistant Professor of Weed Science in the Department of Horticulture at Oregon State University. His research and extension program aims to understand the plant-management-environment interactions and how we can use that knowledge to develop integrated weed management plans in the field, and improve integrated weed management knowledge among practitioners. 

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