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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: "kalbmatt" <kalbmatt@email.msn.com>
  • Date: Mon, 26 Mar 2001 16:06:02 -0600 (CST)

Looks like arum italicum.  In Portland  OR Zone 7-8 it can be invasive, but
removal of seedheads has been helpful to prevent spreading.   I still have
mats of it several yards across.  Some dranunculus act the same.
----- Original Message -----
From: Marge Talt <mtalt@clark.net>
To: Multiple recipients of list AROID-L <aroid-l@mobot.org>
Sent: Monday, March 26, 2001 7:33 AM
Subject: Arum italicum as an invasive weed? ID and advice needed.


> 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:
>
> http://mtalt.hort.net/arum-tmp/arum-as-weed.html
>
> 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
>
> Marge Talt, zone 7 Maryland
> mtalt@clark.net
> Editor:  Gardening in Shade
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>





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