Aquatic Plants on Sep 18, 2025
Submitter has sample
EDRR Status: Local expert notified
Description of specimen
Japanese knotweed, reed canary grass, blackberry bushes and policeman’s helmet
Commentary
Expert Reviewer
Carri Pirosko
Oregon Department of Agriculture's Noxious Weed Program. Josephine CWMA, Jackson CWMA, and Douglas CWMAs.
Yes, Coos County has an herbicide cost share program. https://www.co.coos.or.us/bc-weed/page/cost-share-program#:~:text=Coos%20County%20Herbicide%20Cost%2DShare,provide%20feedback%20through%20the%20survey.
I am going to share your report with Coos WA as well.
CoosWA has had a series of engaged noxious weed coordinators, here is one of them and her outreach. https://www.youtube.com/watch?v=rcNWPPDblZc
Coos WA has gotten some funding for policeman's helmet treatments from the Oregon State Weed Board. https://southcoastcwma.org/weed/policemans-helmet/
ODA has a new Japanese (and hybrid) knotweed biocontrol agents that are being monitored for effectiveness. https://www.facebook.com/ODANoxiousWeedProgram/videos/knotweed-biocontrol/2976553119088581/
I can be reached at: Carri Pirosko, OR Dept. of Agriculture, Noxious Weed Program 541-291-2680
Carri Pirosko
Sept. 22, 2025, 1:54 a.m.