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<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt; color: #000000;">Back in the 1990s I asked about Italian arum as an invader in the Mid-Atlantic. Few seemed concerned at the time. So much for "early detection, rapid response". Sorry that it is still a problem.</span></div>
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<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt; color: #000000;">Faith Campbell</span></div>
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In a message dated 3/1/2021 9:16:26 AM Eastern Standard Time, ialm@erols.com writes:
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<p class="yiv7574841539MsoNormal"><span style="font-size: 14.0pt; font-family: sans-serif;">Just a reminder. Dig out when the soil is still wet after a rain for much better success. Marc</span></p>
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<p class="yiv7574841539MsoNormal"><strong>From:</strong> MAIPC <maipc-bounces@lists.maipc.org> <strong>On Behalf Of </strong>Randall, Johnny<br clear="none"><strong>Sent:</strong> Monday, March 01, 2021 8:54 AM<br clear="none"><strong>To:</strong> Jil Swearingen <jilswearingen@gmail.com>; Ruth Douglas <cvilleruth@gmail.com><br clear="none"><strong>Cc:</strong> MAIPC Listserve <MAIPC@lists.maipc.org><br clear="none"><strong>Subject:</strong> Re: [MAIPC] Italian Arum</p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 14.0pt;">Ruth: Jil is unfortunately correct! We haven’t found a herbicide treatment that works very well. </span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 14.0pt;">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. </span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 14.0pt;">Johnny </span></p>
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<p class="yiv7574841539MsoNormal"><strong>From:</strong> MAIPC <<a href="mailto:maipc-bounces@lists.maipc.org" shape="rect" target="_blank" rel="noreferrer noopener">maipc-bounces@lists.maipc.org</a>> <strong>On Behalf Of </strong>Jil Swearingen<br clear="none"><strong>Sent:</strong> Monday, March 1, 2021 8:43 AM<br clear="none"><strong>To:</strong> Ruth Douglas <<a href="mailto:cvilleruth@gmail.com" shape="rect" target="_blank" rel="noreferrer noopener">cvilleruth@gmail.com</a>><br clear="none"><strong>Cc:</strong> MAIPC Listserve <<a href="mailto:MAIPC@lists.maipc.org" shape="rect" target="_blank" rel="noreferrer noopener">MAIPC@lists.maipc.org</a>><br clear="none"><strong>Subject:</strong> Re: [MAIPC] Italian Arum</p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 12.0pt;">Ruth,</span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 12.0pt;">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.</span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 12.0pt;">Here's a good fact sheet from the State of Washington.</span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 12.0pt;"><a href="https://www.nwcb.wa.gov/weeds/italian-arum" shape="rect" target="_blank" rel="noreferrer noopener">https://www.nwcb.wa.gov/weeds/italian-arum</a></span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 12.0pt;">Thanks,</span></p>
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<p class="yiv7574841539MsoNormal"><span style="font-size: 12.0pt;">Jil</span></p>
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<p class="yiv7574841539MsoNormal">On Mon, Mar 1, 2021 at 8:33 AM Ruth Douglas <<a href="mailto:cvilleruth@gmail.com" shape="rect" target="_blank" rel="noreferrer noopener">cvilleruth@gmail.com</a>> wrote:</p>
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<p class="yiv7574841539MsoNormal">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 (<a href="http://mdinvasives.org/iotm/nov-2015/" shape="rect" target="_blank" rel="noreferrer noopener">http://mdinvasives.org/iotm/nov-2015/</a>) and it's discouraging about how to get rid of it.</p>
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<p class="yiv7574841539MsoNormal">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?</p>
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<p class="yiv7574841539MsoNormal">Any advice is welcome.</p>
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<p class="yiv7574841539MsoNormal">Thanks.</p>
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<p class="yiv7574841539MsoNormal">Ruth Douglas</p>
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<p class="yiv7574841539MsoNormal">Charlottesville, VA</p>
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