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

From: "kalbmatt" kalbmatt at email.msn.com> on 2001.03.26 at 22:06:02(6084) 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. +More ----- Original Message ----- To: Multiple recipients of list AROID-L 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 > ----------------------------------------------- > 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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