Hello - thank you for your attention to harmful invasive species. English Ivy is listed by the Oregon State Weed Board as a B listed weed. It is very widespread in the area, and no longer cost effective for the state or others to attempt to control. However, it is ultimately the landowner's responsibility to manage invasive species.
It can be controlled mechanically. scrape or cut the root connections from the ground as you roll up thick mats of the ivy. If there is a large vine climbing a tree, cut the ivy trunk, and let the upper vine wither and die. Once it's dead and somewhat dried out, you can pull it off its base more easily. the roots in soil must be dug out or treated with herbicide.
This website describes herbicidal control measures
https://pnwhandbooks.org/weed/problem-weeds/ivy-common-english-hedera-helix

Beth Thiel
May 13, 2024, 5:34 a.m.