2019 Columbia Gorge Invasive Species and Exotic Pest Workshop


Thank you for attending the 2019 Invasive Species and Exotic Pest Workshop!

In order to continue to improve this event, we kindly ask our attendees to complete a short survey about this year’s Invasive Species and Exotic Pest Workshop.

2019 ISEP Workshop Survey


If you were unable to attend this year’s event, please see the presentations below.


Riparian Restoration and Beyond – John Richard Goetz III

Spotted Lanternfly – Sven-Erik Spichiger

Post Fire Vegetation Management Eagle Creek Fire – Chris Aldassy

Decontamination 101 & Aquatic Invasive Species Management – Brianna Widner & Jesse Schultz

Pesticide Research Updates – Kaci Buhl

Development and Persistence of Soil Legacy Effects of Scotch Broom and Implications for Reforestation – Sara Grove


In partnership with United States Department of Agriculture’s Animal and Plant Health Inspection Service, the Columbia Gorge Cooperative Weed Management Area, the Washington Invasive Species Council, and Washington State University Extension will be co-hosting the 8th Annual Columbia Gorge Invasive Species and Exotic Pest Workshop!

This excellent opportunity is designed to provide information on invasive species management to land managers and the interested public. We will focus on identification and control methods for the Spotted Lanternfly (Lycorma delicatula) and Flowering Rush (Butomus umbellatus) in the morning. After lunch, we will put your weed identification skills to the test with a fun, interactive weed quiz through the game-based platform, Kahoot!. Later in the day, we will hear the latest news on regional pesticide research updates and the Eagle Creek Fire containment zone. We are excited to be hosting at Skamania County’s Hegewald Center once again!

See event agenda below or download the PDF.

Credit Information

  • Oregon Department of Agriculture (ODA) = 7 Pesticide Recertification Credits
  • Washington State Department of Agriculture (WSDA) = 7 Pesticide Recertification Credits
  • International Society of Aboriculture (ISA) = 4.25 Certified Arborist Continuing Education Units (CEUs)

2019 Invasive Species and Exotic Pest Workshop

Thursday, February 28th, 2019, 8:00am – 4:30pm

Hegewald Center, 710 SW Rock Creek Drive, Stevenson, WA, 98648


8:00 – 8:30 Networking

8:30 – 8:40 Welcome

Hannah Brause (Washington State University)

8:40 – 9:30 Riparian Restoration and Beyond: Strategies for Effective Stewardship

John Richard Goetz III (Clean Water Services)

9:30 – 10:20 Spotted Lanternfly – New pest on the Horizon

Sven-Erik Spichiger (Washington State Department of Agriculture)

10:20 – 10:30 Break

10:30 – 11:00 EDRR in the Eagle Creek Burn Area

Chris Aldassy (East Multnomah Soil and Water Conservation District)

11:00 – 12:00 Flowering Rush Distribution and Control Options in the Columbia River

Jennifer Andreas (Washington State University Extension)

12:00 – 1:00 Lunch

1:00 – 1:05 CWMA Coordinator Introduction

Courtney Gattuso (Clackamas Soil and Water Conservation District)

1:05 – 1:30 Weed quiz

Marty Hudson (Klickitat County)

1:30 – 2:30 Pesticide Research Updates

Kaci Buhl (Oregon State University)

2:30 – 2:45 Break

2:45 – 3:35 Decontamination 101 & Aquatic Invasive Species Management

Brianna Widner (Washington Invasive Species Council) & Jesse Schultz (Washington Department of Fish and Wildlife)

3:35 – 4:25 Development and persistence of soil legacy effects of Scotch broom and implications for reforestation

Sara Grove (University of California Santa Cruz)

4:30 Wrap Up


Please note:

  • Lunch will NOT be provided at the event, so please bring a lunch or plan on eating at one of Stevenson’s local restaurants during the break. 

  • On the day of the event, please park behind the Hegewald Center near the Skamania County Fairgrounds; parking is not allowed in the front of the building.
  • There will be no refunds issued due to inclement weather. Attendees can receive refunds up to one week prior to the event date.


Questions? Email the CWMA Coordinator at columbiagorgecwma@gmail.com