[MAIPC] Italian Arum

[Jil Swearingen]

Johnny,

That's a great idea! Tell us more about the size of the mesh screen you've
found to work best for filtering out the tubers.

Jil

On Mon, Mar 1, 2021 at 8:53 AM Randall, Johnny <jrandall at email.unc.edu>
wrote:

> Ruth: Jil is unfortunately correct! We haven’t found a herbicide treatment
> that works very well.
>
>
>
> I recommend building a screening frame with the proper hardware cloth
> dimension for trapping tubers, but allowing soil to sift through. (I’m
> building some of these now for Ficaria verna diggings….) The only thing
> you’re putting in the trash is vegetation and not heavy soil.
>
>
>
> Johnny
>
>
>
> *From:* MAIPC <maipc-bounces at lists.maipc.org> *On Behalf Of *Jil
> Swearingen
> *Sent:* Monday, March 1, 2021 8:43 AM
> *To:* Ruth Douglas <cvilleruth at gmail.com>
> *Cc:* MAIPC Listserve <MAIPC at lists.maipc.org>
> *Subject:* Re: [MAIPC] Italian Arum
>
>
>
> Ruth,
>
>
>
> That plant is a monster. Italian arum is or was at the national arboretum
> (that's where I first got to know it about a decade ago). It's very hard to
> get rid of. It's best to dig plants up - you have to get ALL the
> underground tubers and bag and dispose of the material in a landfill. You
> could leave it in the bags for a while to let it rot before disposal. It
> would be best to remove most of the soil in the area where the plants are,
> if that's a possibility. That would help ensure removal of all tubers.
>
>
>
> Here's a good fact sheet from the State of Washington.
>
> https://www.nwcb.wa.gov/weeds/italian-arum
>
>
>
> Thanks,
>
>
>
> Jil
>
>
>
>
>
> On Mon, Mar 1, 2021 at 8:33 AM Ruth Douglas <cvilleruth at gmail.com> wrote:
>
> Help! A well-meaning person or persons planted Italian arum (Arum
> italicum) an unknown number of years ago at my church, and it's been
> spreading. I've seen the Maryland info on this plant (
> http://mdinvasives.org/iotm/nov-2015/) and  it's discouraging about how
> to get rid of it.
>
>
>
> However, no mention is made of tarping or laying black plastic on areas
> where it is spreading. Has anyone tried this, and if so, with what success?
> I know its underground structures can be fairly deep, but does that
> preclude use of this technique?
>
>
>
> Any advice is welcome.
>
>
>
> Thanks.
>
>
>
> Ruth Douglas
>
> Charlottesville, VA
>
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