Marin Knotweed Action Team

Help stop the spread of Japanese knotw**d, one of the top ten most invasive plants in the world! It has been recently found in Marin and Sonoma County and we need your help.

Japanese knotw**d outcompetes native vegetation by emerging early, growing fast, and preventing seedling regeneration.

If you think you have seen Japanese knotw**d on your property, please do not try to dig it out or cut it back. Mechanical removal stimulates growth and risks spread. Report any sightings by contacting the Japanese Knotw**d Outreach Coordinator via email at [email protected] or by calling (415) 473-6070.

More information at https://ucanr.edu/sites/MarinKnotw**dActionTeam/

Fallopia japonica en el condado de Marin y Sonoma

• Es una de las 10 plantas más agresivas, destructivas e invasoras del mundo.
• Supera la vegetación nativa al brotar temprano, crece rápido, y evita el retoño de las plántulas.

Si crees que has visto al Fallopia japónica, ¡Por favor no lo jales o cortes! La extracción mecánica estimula el crecimiento y corre el riesgo de propagarlo. El material de Fallopia japonica debe colocarse en la basura, no en el contenedor de compost verde. Reporte donde has visto esta planta con la Coordinador de alcance de Fallopia japónica, Anna Dirkse a [email protected] o llamando al (415) 473-6070.

Interested in learning more about invasive plants and w**d management? Sign up for the California Invasive Plant Council's webinar on Thursday, June 25 at 1:30 - 3 pm by following this link: www.cal-ipc.org/wvn

This week is California Invasive Species Action Week! UC Agriculture and Natural Resources is hosting a series of free lunchtime webinar series this week, more information is at the link below.

Don't be part of the invasive w**d problem! Learn how to prevent spreading seed while hiking at a free webinar, 12 noon tomorrow. Get details and register here: https://ucanr.edu/sites/invasivelunch/2020_Invasive_Lunch/

This video of Japanese knotw**d overtaking roadsides in West Virginia is a sobering reminder of the importance of eradicating this incredibly invasive plant from West Marin.

On a trip I took from North Carolina back to Michigan yesterday, I was blown away by how much knotw**d is in West Virginia. I drove along WV 19 between Camp Creek and Oak Hill and saw knotw**d EVERYWHERE along the river and the road and the hillsides and yards... I almost had a panic attack.

Japanese knotw**d surveying in the San Geronimo Valley will occur in the coming weeks. Concerned that you might have Japanese knotw**d on your property? Request a survey via this link: https://ucanr.edu/survey/survey.cfm?surveynumber=25181

Check out the National Invasive Species Awareness Week page to learn more about other invasive plants and animals!

February 24 - 28, 2020 is National Invasive Species Awareness Week!

What are ? These are plants, animals, and pathogens that cause harm when they are found in areas where they did not originate, aka where they are not "native." Invasive species threats in Idaho include pests that threaten agriculture, forest pests that damage timber, diseases that threaten human and animal health, and noxious w**ds that displace native species. We'll talk this week about ways you can help prevent the spread of invasive species when visiting your public lands.

National Invasive Species Awareness Week ( ) aims to raise awareness and identify solutions to invasive species issues at local, state, tribal, regional, international, and national scales. For more information, check out the following resources:
-NISAW website: www.nisaw.org
-Invasive Species of Idaho website: http://invasivespecies.idaho.gov/
-"Native plant or not?" - USDA Forest Service webpage: www.fs.fed.us/learn/plants-animals

Interested in becoming a wildland w**d volunteer? Or just interested in learning more about local w**ds? California Invasive Plant Council is holding free trainings for volunteers, including a training in Santa Rosa on February 22nd where you can learn how to identify Japanese knotw**d.

Cal-IPC’s 2020 schedule of FREE training sessions for wildland w**d volunteers is now online! Join a network of volunteers and organizations fighting w**ds across the SF Bay Area. Feb 22: Santa Rosa, March 14: Napa, March 22: South Bay, June (TBD) Mount Diablo

https://www.cal-ipc.org/resources/volunteers/wildland-volunteer-network/

Interested in learning more about the Marin Knotw**d Action Team's work in the San Geronimo Valley? You can learn more by reading our 2019 update at https://ucanr.edu/update.

Can you spot the Japanese knotw**d plants hiding in this photo? Hint: There are two of them! Look in the comments for the answer.

This short video is a good reminder that we are all connected by our watershed.

In the case of Japanese knotw**d, being connected within a watershed also means that this invasive plant can spread rapidly, irregardless of property line boundaries.

What Is A Watershed? A shed that holds water? Nope. Everyone in the world lives in a watershed. Watch this short video to learn what a watershed really is.

Excited to be presenting our work on "Communicating the threat of Japanese knotw**d (Fallopia japonica) to private landowners along San Geronimo Creek" at the California Invasive Plant Council Symposium next week!