Washington State University

Extension Forestry

Invasive Forest Weed Control Field Practicum

June 2, 2018 – Kent

*This class is now full*

Please see our Classes and Events page for other opportunities to take this and other classes.


Got weeds?

Invasive forest weeds cause economic and environmental damage

Is ivy pulling down your trees? Are blackberries taking over your newly planted trees? Do you have stubborn holly in your understory? Are dreaded species like knotweed and Scotch broom popping up on your property? Invasive weeds not only inhibit the growth of or even kill your trees, they cause significant ecological harm by taking over ecosystems, crowding out native species, degrading wildlife habitat, and increasing erosion. Controlling these noxious invaders is a challenging but essential task for landowners.

At this field practicum, you will learn to identify and control some of the most common invasive weeds that cause economic and environmental damage in forests, such as blackberries, knotweed, reed canary grass, butterfly bush, Scotch broom, tansy ragwort, and more. The practicum will cover both chemical and non-chemical control options.

Field-based, hands-on learning

This practicum is completely field based and centered around hands-on learning. After safety briefings, you will don protective gear (provided) to watch demonstrations and then do hands-on practicing of multiple control techniques, such as hand-pulling, root digging, wrenching, foliar sprays, cut stump treatments, and stem injection. You will learn about how to use herbicides safely and effectively, including what products to use for specific weeds and where to get those products, how to read a label, proper safety equipment, avoiding environmental damage, pesticide laws, tank mixing, calibrating a sprayer for the proper application rate, and clean-up.


Saturday June 2, 2018
9:00 a.m. – 4:00 p.m.
Gates open at 8:00 a.m.


29224 Thomas Rd SE
Kent, WA 98042


Pre-registration is required!
Individual Registration

  • $15/person before May 19th Save $10!
  • $25/person May 19th until registration closes at 5:00 PM May 31st

Couple Registration (same household/ownership)

  • $25/couple before May 19th Save $10!
  • $35/couple May 19th until registration closes at 5:00 PM May 31st

Student and Master Gardener discounts are available (call 206-263-1128 for details). To be eligible for a refund, cancellations must be received by 5:00 PM May 18th, and refunds may be subject to a $5.00 administrative fee.

Pre-Registration is Required

Space is limited and is first come, first served. Registration must be received no later than 5 p.m. Thursday May 31st.

This class is now full


Important Additional Information:

  • For safety during activities, you MUST wear long pants, long-sleeve shirts, and sturdy, close-toed footwear. Anyone not dressed appropriately will not be permitted to participate.
  • Each sessions will be located in different areas at the site. Please be prepared to do some walking along trails and forest roads, including some uneven (and possibly muddy) areas. Also be prepared to work in brushy areas during activities
  • Restrooms and a hand-wash station will be available on site.
  • Coffee and very light refreshments will be available in the morning only before the sessions start. Please bring your own sack lunch, snacks and water bottle.

Program Sponsors

This program is funded by the Washington State University Western Extension Risk Management Education Center, the USDA National Institute of Food and Agriculture (NIFA), and King Conservation District. This material is based upon work supported by USDA/NIFA under Award Number 2015-49200-24225.

Western Extension Risk Management Education Logo


King Conservation District Logo

All Are Welcome

Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Reasonable accommodations will be made for persons with disabilities and special needs who contact Kelsey Ketcheson at 206-263-1128 or at least two weeks prior to the event.

Extension Forestry, 600 128th St SE Everett WA 98208, 425-357-6017, Contact Us
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