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Re: Arum italicum as an invasive weed? ID and advice needed.

  • To: Multiple recipients of list AROID-L <aroid-l@mobot.org>
  • Subject: Re: Arum italicum as an invasive weed? ID and advice needed.
  • From: jim singer <jsinger@igc.org>
  • Date: Mon, 26 Mar 2001 18:38:38 -0600 (CST)

not much help, marge, but confirmation that one person's accent plant is 
another's invasive weed. the pond apple, which is native to the everglades, 
has been declared a noxious weed in northern australia; likewise the 
austrailian pine has been declared a noxious weed in the everglades. i 
suspect this sort of thing happens with greater frequency than we realize.

At 09:32 AM 3/26/01 -0600, Marge Talt wrote:
>Hi all,
>I received email from a gardener in Oregon who had read my article on
>Arum italicum and wrote saying that it had become a weed on her farm,
>invading the garden and herb beds.  Since my one clump has not
>expanded all that much in years and doesn't set seed regularly, I
>replied wondering whether she could have another plant - and sent
>links to various Arum images on the web.
>She responded with two images of her problem plant, which I have put
>up on the web at:
>It sure looks like Arum italicum to me, but I've never read anything
>about this becoming an invasive weed.  Out of my depth here, so I
>turn to all you Aroid gurus to help me help this person out.
>Would you-all be so kind as to look at the images and let me know
>whether this looks like it actually is Arum italicum.  If not, what
>is it?  And, further is there any action that can be taken to curb
>it, other than removing seed heads?  She says it's spreading
>everywhere and the tubers are very deep; she's tried digging them
>out, but finds she's just cutting off stems below ground.  She says
>there are too many to really be able to dig them out (if it is A.
>italicum, I should be so lucky as to have this problem!).  She also
>says they have tried "various methods" of eradication with no
>luck...I am assuming some kind of herbicide, but do not know exactly
>what methods she has tried.
>Any assistance will be much appreciated.
>Marge Talt, zone 7 Maryland
>Editor:  Gardening in Shade
>Current Article: Online Nurseries 2001 - Weird Dude's Plant Zoo
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