Hi Brie,
Thanks for your report! Arum can be a very difficult plant to control, as it spreads from roots and can be difficult to kill with herbicides. The best way to handle a small infestation is by carefully digging out the roots and throwing them in your municipal waste. It's also important to prevent plants from producing berries! Seeds can be moved around by wildlife and will start new infestations. Learn more about control options here: https://solvepestproblems.oregonstate.edu/weeds/italian-arum#:~:text=Dig%20out%20individual%20plants%20and,not%20compost%20this%20invasive%20plant.

Thanks for your report and good luck!

-Sarah Hamilton
Native & Invasive Plant Specialist
Marion SWCD

Sarah Hamilton
April 25, 2023, 1:35 a.m.