2025 Weed Conference
General Information Everything You Need to Know About Weeds at This One Meeting!
The 75th annual Washington State Weed Conference provides information on all aspects of weed control and management. It's one of the largest meetings of its type and covers crops of all kinds, turf and ornamental, and vegetation management.
The Washington Vegetation Management Association believes it is important to cultivate the next generation of weed scientists. As an important means to that end, in 2024, we instituted a scholarship to assist those who are already on track for a career in weed science. This scholarship is also open to undergraduates.
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Over 40 Topics & Speakers
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15 Recertification Credits applied for from Washington and Oregon
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3 Concurrent Sessions
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Luncheon & Social Hour
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Trade Show
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Annual Weed Quiz with Cash Prizes
Agenda 3 Day Program
2025 Schedule
General Session
9:00 to 9:10 AM
Welcome to the Weed Conference
9:10 to 10:00 AM
Proper Use of Adjuvants to Improve Pesticide Performance and Reduce off Target Movement (Chemical Trespass)
Ian Crawford, Precision Laboratories
10:00 to 10:15 AM
Coffee Break
Sponsored by The Orion Companies
10:15 to 11:05 AM
Certified Pesticide Applicator Rule Changes and How They Affect Your License
Christina Zimmerman, WSDA
11:10 to Noon
Politics, Perception & Pesticides: What's Actually Changing (and What's Just Noise)
Billy Olesen, Washington State Pest Management Association
Noon to 1:30 PM
Lunch on Your Own
1:30 to 2:20 PM
Integrated Vegetation Management to Improve Access, Reliability, Cost, Habitat and Climate
Richard A. Jonstone, IVM Partners, Inc.
2:20 to 3:10 PM
Awards, Scholarships and Giveaways
3:10 to 4:00 PM
WSNWCB Update and Weed ID Quiz - Required for all afternoon credits
Mary Fee, Washington State Noxious Weed Control Board
4:00 to 4:15 PM
Afternoon Break - Sponsored by Corteva Agriscience
4:15 to 5:05 PM
TBD
TBD
Crop Session
8:00 to 8:40 AM
Russian Thistle and Smooth Scouringrush Biology and Management
Dr. Drew Lyon, Washington State University
8:45 to 9:25 AM
Managing Herbicide Resistance Through Reliance on Pre-Emergents
Dr. Shane Hansen, Simplot Grower Solutions
9:25 to 9:45 AM
Coffee Break
Sponsored by Alligare
9:50 to 10:30 AM
TBD
TBD
10:35 to 11:15 AM
In Sync with Nature: Using Integrated Pest Management to Control Environment Agriculture
Christopher Kaufman, Local Bounti
11:20 to Noon
Emerging Pests
Cassie Cichorz, Washington State Department of Agriculture
Noon to 1:30 PM
Lunch
Aquatics Session
1:35 to 2:15 PM
TBD
TBD
2:20 to 3:00 PM
Effectiveness of Florpyrauxifen-benzzyl for Invasive Milfoils in Washington State
Lauren Kuehne, Omfishient Consulting
3:00 to 3:20 PM
Afternoon Break
Sponsored by Envu
3:20 to 4:00 PM
TBD
TBD
4:05 to 4:45 PM
TBD
TBD
4:50 PM
Social Hour Sponsored by Wilbur-Ellis Company
Vegetation Management Session
8:00 to 8:40 AM
Alligare Premix & Tank Mix Products for Bare Ground Weed Control
Dr. George Beck, Alligare
8:45 to 9:25 AM
How to Control Your Weeds With The New Contract Herbicide Altify IVM
Jerry Ellis, Envu
9:25 to 9:45 AM
Coffee Break
Sponsored by Alligare
9:50 to 10:30 AM
Documentation and Record Keeping Using GPS Based As-applied Data
Ryan Kuster, Ag Enterprise Supply, Inc.
10:35 to 11:15 AM
Pesticides and the Public
Will Hatler, Corteva Agriscience
11:20 to Noon
Title TBD
Jon Storr, Nufarm
Noon to 1:30 PM
Luncheon
1:35 to 2:15 PM
Adjuvant Use Efficiency - How to get the most out of our chemistries
Joshua Williams, Loveland Products
2:20 to 3:00 PM
Grass Identification & Management
Lydia Fields, Wilbur-Ellis
3:00 to 3:20 PM
Afternoon Break
Sponsored by Envu
3:20 to 4:00 PM
TIMING is EVERYTHING!
Susan Bird, Yakima County Noxious Weed Board
4:05 to 4:45 PM
What's Up with Washington Roadsides?
Ray Willard, WA State Dept. of Transportation
4:50 PM
Social Hour
Sponsored by Wilbur-Ellis Company
Turf & Ornamental Session
8:00 to 8:40 AM
Getting the Most Out of Your Turf Products
Tim Magney, Willbur-Ellis Co.
8:45 to 9:25 AM
TBD
TBD
9:25 to 9:45 AM
Coffee Break
Sponsored by Alligare
9:50 to 10:30 AM
Preemergent Programs and Tricks of the Trade
Michael Navarrete, CCA, Corteva Agriscience
10:35 to 11:15 AM
The Science of Control: Accurate ID, Smart Timing, Clear Expectations
Lydia Fields, Wilbur-Ellis
11:20 to Noon
Diagnosing Herbicide Damage on Ornamental Landscapes
Tim Kohlhauff, WSU
Noon to 1:30 PM
Luncheon
1:35 to 2:15 PM
TBD
TBD
2:20 to 3:00 PM
Using Electronic Product Control to Maximize Efficiency and Efficacy
Ryan Kuster, Ag Enterprise Supply, Inc.
3:00 to 3:20 PM
Afternoon Coffee Break
Sponsored by Envu
3:20 to 4:00 PM
TBD
TBD
4:05 to 4:45 PM
Adjuvant Use Efficiency - How to get the most out of chemistries
Joshue Williams, Loveland Products
4:50 PM
Social Hour
Sponsored by Wilbur-Ellis Company
General Session
8:00 to 8:10 AM
Officer and Board Election Results
8:10 to 9:00 AM
Title TBD
Mike Powers, TEEJET Technologies
9:05 to 9:55 AM
TBD
TBD
9:55 to 10:15 AM
Morning Break
Sponsored by Nufarm Americas
10:20 to 11:10 AM
Vegetation Management Panel Discussion/Round Table Herbicide Q&A
11:10 AM
Awarding of Door Prizes - Adjournment of Conference
2025 Featured Speaker Sessions Led By Industry Experts
Richard A. Johnstone
Rick serves as President and founder of the 501c3 non-profit corporation IVM Partners and is owner of VMES, LLC Vegetation Management Consulting. He directs vegetation management research and training under IVM Partners and is a liaison and advisor for federal, state and tribal land management agencies, electric and natural gas utilities, universities and conservationists. Under VMES he provides vegetation management consultation and is an expert witness in litigation. Rick served as System Forester for two electric utilities and is Past President of the Utility Arborist Association and a Registered Professional Forester with a BS degree in Forest Resources Management from West Verginia University. He has over 47 years' experience and is a technical advisor for restoring native pollinator and wildlife habitat using cost effective integrated vegetation management strategies.
More Speakers Coming Soon!
Sponsors & Exhibitors Thanks to Our Corporate Supporters!
Location & Hotel Where to Stay
Wenatchee Convention Center
121 N Wenatchee Ave
Wenatchee, WA 98801
These hotels are convenient to the Convention Center. Please specify you are with the Washington State Weed Association.
The Coast Wenatchee Center Hotel
$115 / night single
Red Lion Wenatchee
No special conference rate
Hilton Garden Inn
$115 / night single or double
Get Answers Frequently Asked Questions
Get Registered Online & In-Person Registration
Registration is Now Open!
Registration includes all meetings and workshops, Thursday luncheon, social hour, and abstract of material presented by various speakers.
Low-Cost Registration Fee
Before or on October 26: $200 / person
After October 26: $250 / person
Online Only Option: $150 / person
Mail / Fax
If you would rather register by mail or fax, please download our registration form PDF and mail payment to:
Washington Weed Conference
P.O. Box 5021
Benton City, WA 99320
or fax the form to (509) 288-4771
Please Note: Refunds are issued upon request up to one week prior to the first day of the conference. Requests after that date are non-refundable.