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Index of Subjects Bad news if Dog-strangling vine (DSV) is here as it is quite a scourge in eastern Ontario. Everyone struggles to keep it out of their gardens and it grows rampant on vacant properties or even in woodlands. I was in Ontario all last summer and went for walks in several places around Ottawa and found it growing profusely everywhere. Fred Schueler may comment on the prevalence there and perhaps here as well. Another up and comer I saw there spreading out from what might have been its Ground Zero in an abandoned industrial park was Tartarian Maple. *sigh* As for invasive plants, I haven't found that there is much concern over them here in NS although maybe there is a department that records such things. I did try to find out about this a few years ago after taking note of an incredible acreage which was just covered with a non-native vine -- Wisteria sinensis. I made mention of it here on NatureNS at the time (summer 2013). It grows rampantly all over the woods at this property, but also along the roadside and actually up over the powerlines - smothering everything in its path. I've seen it spreading out from there, but it seems that is not considered problematic. At the time, I did some readng up on it and discovered that just about everywhere, it is considered a serious invasive. Reminds me of the Japanese Knotweed around here -- growing along Route 201 and in vacant land in Annapolis Royal. When I first moved here, a neighbour offered to give me some roots of his "bamboo". He used to chop it down and toss it into a ravine on his own property and now it's growing down there. I see a lot of it around Bridgetown next to the river too. It seems to be everywhere. However, I don't think there is much concern. The truth is, here around Annapolis Royal, if all of the particularly invasive, non-native plants (multiflora roses, goutweed, tansy, knotweed, phragmites, wisteria, etc..) ever disappeared overnight, their absence would leave something of a wasteland. I suspect European and Asiatic plants probably outnumber natives by about 2 to 1. I've found that to be the case with snails and slugs and to some extent with insects as well, by the way. No doubt, many of these plants came with the settlers and seem to have done quite well over the centuries. Definitely has an impact on the ecology of the area -- less native plant hosts for our native insects -- and so on. Bev Wigney Round Hill On 5/5/18, David Patriquin <David.Patriquin@dal.ca> wrote: > Some discussion about Dog-strangling vine (Cynanchum rossicum & Cynanchum > louiseae) came up in a discussion forum on Woods and Waters Nova Scotia; I > had not heard of it before in NS and cannot find it in any lists of invasive > plants for NS. > > > From the discussion forum, from a resident in the Port George area: > > "...can see out my window where it starts . my next door neighbours bush is > blanketed . from the tops of his mature spruce to the ground....the vines > next door , that’s where it starts , then it went through our blackberry > field and mostly killed it . now it’s in our woods > > > So I am wondering how common it is now in NS - I would appreciate any > comments, observations from NatureNS folks > > > Another question - is there a group or gov agency in NS that is actively > keeping track of invasive plants? > > > At http://www.invasivespeciescentre.ca/ its distribution is cited as " in > parts of Ontario, southern Quebec and several American states" > > > Short description > > Dog-strangling vine is found in parts of Ontario, southern Quebec and > several American states. This plant grows aggressively by wrapping itself > around tress and other plants, and can grow up to two metres high. This > forms dense stands that overwhelm and crowd out native plants and young > trees, preventing forest regeneration. The plant produces bean-shaped seed > pods for to seven centimetres long and pink to dark purple star-shaped > flowers >
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