Arum italicum naturalized EVERYWHERE

I inherited arum italicum on a site where I work. It spreads by bulbils, so we have been careful with handling and clearing it. I have read everything I can find on it, including postings by the arum italicum “support group” in Portland, Oregon. It has made it difficult to establish new plants and it’s a concern with the young children who have just moved to the property full time. Any idea how to keep it in check?

I would try either 10% vinegar or a tea made from walnut leaves. This will at least stop it from going to seed.

This is not going to be effective because the foliage will appear to be dead, but the following spring the bulbs will re-sprout.

Dig, dig then dig some more.

Oh man that looks like a rough one to get rid of. I'm starting a dandelion reduction campaign and have just accepted that it will be a long multi-pronged approach that might have some take-aways for you.

For one, I’m using mechanical means to start. The two tools I’m using are the “Weasel weed popper” and the “Fiskars 4 prong weed puller.” Now, obviously tools like these will not get all the bulbs out of the ground, but they do give you the means to remove the plant without touching it (or bending over!) And some removal is better than none, since every one you remove will be one less plant propagating further. And after a few seasons of campaigning with an easy (albeit less through) tool, you would hopefully see results at an acceptable ratio of labor to progress.
Which might beat the hard but more thorough “digging and risking handling” solution.

A complimentary approach might be to first remove the plants as listed above, and then smother the area to prevent the remaining bulbs from coming up. Cardboard and wood chips are my free favorite solution there.

Another mechanical approach: Torching with a yard torch (not sure if the toxicity in these plants makes them non-torchable like poison ivy is.) It’s fun to kill-it-with-fire! But takes repeated effort since obviously the underground portion will re-sprout… but weaker over time as you repeat the process.

We had a dandelion problem for many years. The wife found out they were very nutritious so we started gathering them. Within a few years I had to stash a few out of her reach for the garden.  greens are quite good mixed in with collards and mustards...
Flowers make a very good country wine and I even enjoy the coffee we made from the roots.
Funny how things change.

I'm starting a dandelion reduction campaign

And yet, I run around collecting seed heads and dispersing them next spring (not really working, FYI, am I doing something wrong) in an attempt to grow MORE dandelions.

Not sure if the fiskers brand weed puller is the one I got at Costco, but I snapped the shaft of TWO of them, both in under ten minutes!  Keep your receipt.