Land Plants - invasive

Italian Arum (Arum italicum) on Dec 18, 2021

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

Multiple plants found in my back yard (see photo).

Commentary

Hi Jason. You may have success with herbicide treatments if timed properly and with the right formulation. Please contact your local OSU Extension office for herbicide recommendations.

If that is the full extent of the patch, you may have good luck with just digging it out and placing in a trash bag. Be sure to get all the root fragments that you can. Some follow up may be needed.

Coordinator Western Invasives Network
March 23, 2022, 6:26 a.m.

Remedy

Italian arum can be difficult to eradicate once established. Make sure to wear gloves and long sleeves and pants when removing it, as its sap can cause skin irritation. Do not compost or put in your yard debris, as this can lead to spreading of tubers which can grow into new plants. Home control methods can include carefully digging out the tuber and any daughter tubers and disposing in the trash. Cutting and disposing of the berries in the trash can help prevent spreading to new sites. Herbicide trials are still inconclusive, please contact your local Soil and Water Conservation District if you are interested in chemical control.

Resources

Washington State Noxious Weed Board info on Italian Arum

Location

In my back yard.

Expert Reviewer

Coordinator Western Invasives Network
Western Invasives Network

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