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

From: jim singer jsinger at igc.org> on 2001.03.27 at 00:38:38(6089) 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. +More 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: > >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 >----------------------------------------------- >Current Article: Online Nurseries 2001 - Weird Dude's Plant Zoo >http://www.suite101.com/welcome.cfm/shade_gardening >------------------------------------------------ >Complete Index of Articles by Category and Date >http://mtalt.hort.net/article-index.html >------------------------------------------------ >All Suite101.com garden topics : >http://www.suite101.com/topics.cfm/635

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