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Hi Nick & All,
The BSLB was a fiasco from day one because, apparently no one on the=
=20
committee knew anything about trees. I saw similar symptoms that year in=20
Kentville (resin pegs but BSLB absent) and knew darn well that the=20
problem in PPP was insufficient water not BSLB. I wrote to the committee=20
several times, Nat. Res. Minister and never received any response.
Their over confidence was a consequence of incorrect interpretation=20
of experimental results due to field inexperience. Logs cut after=20
beetles were active were incubated in a lab and BSLB emerged. Case=20
proven they thought; hardly.
Insects may try to lay their eggs in healthy trees but they are=20
swamped with sap or resin. However if a tree is under water stress eggs=20
are not swamped.
Spruce that summer in Kentville could not ooze resin when cut; they=20
very slowly grew an almost solid resin horizontal peg when wounded (so=20
stiff it did not run down as usual). A healthy fast growing Spruce not=20
under water stress will practically squirt resin when wounded.
In like fashion, insects which bore into bark or wood do not=20
successfully attack healthy trees; contrary to Entomological lore. Cut a=20
healthy Ash on a warm calm day and within an hour (less if Ash cut a day=20
earlier are nearby) and it will be alive with small Ash weevils. And=20
within 24 hours will have many holes drilled. If under comparable=20
conditions a Spruce branch, tree or Pine tree is cut they rapidly=20
attract bark beetles in large numbers and on their heels Cleridae arrive=20
looking for supper.
And let it be noted that BSLB was "contained" in PPP until a good=20
wind (Juan ?) generated a juicy swath of windfalls along which BSLB=20
could migrate.
What is my point ? Problems along the lines of BSLB (improbably=20
suddenly becoming "aggressive" after decades of being lazy; flashing=20
light says "wrong wrong") would be more readily handled if the select=20
committee were more prepared to entertain information from non-committee=20
members.
Yt, DW, Kentville
------ Original Message ------
From: "Nick Hill" <fernhillns@gmail.com>
To: naturens@chebucto.ns.ca
Sent: 5/7/2018 10:35:50 AM
Subject: Re: Re[2]: [NatureNS] Dog-strangling vine in Nova Scotia: ANY=20
FURTHER RECORDS OF OCCURRENCE OF DOG-STR-VINE
>Hi Dave
>"Invasive" sets off people's fear alarm and this results often in=20
>unnecessary or disturbing intervention.
>
>We do need an ecological think tank that is in place and has academic=20
>credibility.
>We need a group that understands evolution and systems ecology more=20
>than taxonomy although all should be involved.
>It should logically come out of the Wildlife Division of DNR.=20
>Currently, CFIA is involved..DFO as it relates to fishery.
>
>Someone with an ecological bent gets a bit upset when we spasm to=20
>confront a pest like adelgid.
>I have witnessed the response over Brown Spruce Longhorn Beetle. Saw a=20
>lot of big tree felling and sanitization but not a lot of ecological=20
>thought, experiment, study or peer-reviewed write ups.
>
>I recall the roadside spray program for the ubiquitous ragweed. It was=20
>counter-productive and caused road edges to stay open and serve for the=20
>establishment of more ragweed from the seed bank.
>
>Nick
>
>
>
>On Mon, May 7, 2018 at 9:53 AM, David Patriquin=20
><David.Patriquin@dal.ca> wrote:
>>'Lot's of discussion about invasive species... but so far I have no=20
>>report on the occurrence of dog-strangling vine in NS (other than the=20
>>one I cited for the Port George area) which is what I wanted to=20
>>determine.. how common is it here?
>>
>>
>>
>>Also, I wondered if there is a group/gov agency which is actively=20
>>keeping track of invasives in NS
>>
>>
>>
>>'Any help on these appreciated
>>
>>
>>
>>-------------------------------------------------------------------------=
-------
>>From:naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> on=20
>>behalf of Nick Hill <fernhillns@gmail.com>
>>Sent: Saturday, May 5, 2018 4:37 PM
>>To:naturens@chebucto.ns.ca
>>Subject: Re: Re[2]: [NatureNS] Dog-strangling vine in Nova Scotia
>>
>>Calm...i lived in southeast Kentucky
>>We had kudzu vine that swallowed abandoned houses...crossex roads via=20
>>phone lines
>>Scary but before we call Jesus and Mary we notice it did not enter=20
>>intact woodland and was restricted to about 30m from the roaside.
>>We do have a couple of plants that are 9f concern because they do get=20
>>into fairly intact ecosystems. I'd put glossy buckthorn at the top of=20
>>the list and then in terms of potential for harm given reports from=20
>>elsewhere, I'd be concerned about the spread of garlic mustard.
>>
>>Glossy? It's naturalized now and is part of swamps and early forest=20
>>succession. It's not the end of the world...its green it's a laxative=20
>>for birds and it fits into a red maple alder tudspuck sedge swamp with=20
>>no apparent diversity or community function effects.
>>
>>Fight clearcutting and our inability to get any marine protected areas=20
>>for the eastern shore because we don't want any impingement on=20
>>rockweed harvest or oil and gas development.
>>
>>Great name!
>>
>>On Sat, May 5, 2018, 1:21 PM David, <dwebster@glinx.com> wrote:
>>>Hi Dave P., Bev and all.
>>> What an unfortunate name to be saddled with. Just this side of
>>>'wanted dead or alive'. I wish to add to Bev's comments about the
>>>abundance of 'invasives'.
>>> As a general rule of thumb animals and plants eventually=20
>>>generate
>>>conditions which threaten their well being/survival. And those which
>>>prevail may do so by "invading" fresh territory which is not loaded=20
>>>with
>>>diseases or parasites.
>>> Consequently, if something is threatened the best recovery remedy=
=20
>>>may
>>>be to move a starter kit of it elsewhere. Before lighting long=20
>>>distance
>>>flame throwers think about this in general terms. What is the better
>>>choice 1) act to preserve a flora and fauna which is free of=20
>>>"invasive"
>>>species or 2) act to enable survival of species which may be=20
>>>endangered
>>>?
>>>Yt, DW. Kentville
>>>
>>>------ Original Message ------
>>>From: "Bev Wigney" <bkwigney@gmail.com>
>>>To: naturens@chebucto.ns.ca <mailto:naturens@chebucto.ns.ca>
>>>Sent: 5/5/2018 9:35:44 AM
>>>Subject: Re: [NatureNS] Dog-strangling vine in Nova Scotia
>>>
>>> >Bad news if Dog-strangling vine (DSV) is here as it is quite a=20
>>>scourge
>>> >in eastern Ontario. Everyone struggles to keep it out of their=20
>>>gardens
>>> >and it grows rampant on vacant properties or even in woodlands. I=20
>>>was
>>> >in Ontario all last summer and went for walks in several places=20
>>>around
>>> >Ottawa and found it growing profusely everywhere. Fred Schueler=20
>>>may
>>> >comment on the prevalence there and perhaps here as well. Another=20
>>>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=20
>>>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=20
>>>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=20
>>>Route
>>> >201 and in vacant land in Annapolis Royal. When I first moved here,=
=20
>>>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=20
>>>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,=20
>>>if
>>> >all of the particularly invasive, non-native plants (multiflora=20
>>>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=20
>>>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=E2=80=99s where it starts , then it went through our
>>> >>blackberry
>>> >>field and mostly killed it . now it=E2=80=99s in our woods
>>> >>
>>> >>
>>> >>So I am wondering how common it is now in NS - I would appreciate=20
>>>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/=20
>>><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=20
>>>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=20
>>>bean-shaped
>>> >>seed
>>> >>pods for to seven centimetres long and pink to dark purple=20
>>>star-shaped
>>> >>flowers
>>> >>
>>>
>
>
>
>--
>Dr. N.M.Hill
>Fern Hill Institute of Plant Conservation
>424 Bentley Road, Berwick, NS, B0P 1E0
>
>phone 902-698-0416
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Content-Type: text/html; charset=utf-8
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<html><head><style id=3D"css_styles" type=3D"text/css"><!--blockquote.cite=
{ margin-left: 5px; margin-right: 0px; padding-left: 10px; padding-right:0p=
x; border-left: 1px solid #cccccc }
blockquote.cite2 {margin-left: 5px; margin-right: 0px; padding-left: 10px;=
padding-right:0px; border-left: 1px solid #cccccc; margin-top: 3px; padding=
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body { font-family: Tahoma; font-size: 12pt; }--></style></head><body><di=
v>Hi Nick & All,</div><div>=C2=A0 =C2=A0 The BSLB was a fiasco from day =
one because, apparently no one on the committee knew anything about trees. =
I saw similar symptoms that year in Kentville (resin pegs but BSLB absent) =
and knew darn well that the problem in PPP was insufficient water not BSLB=
. I wrote to the committee several times, Nat. Res. Minister and never rece=
ived any response.=C2=A0</div><div>=C2=A0 =C2=A0 Their over confidence was=
a consequence of incorrect interpretation of experimental results due to fi=
eld inexperience. Logs cut after beetles were active were incubated in a la=
b and BSLB emerged. Case proven they thought; hardly.</div><div>=C2=A0 =C2=
=A0 Insects may try to lay their eggs in healthy trees but they are swamped =
with sap or resin. However if a tree is under water stress eggs are not sw=
amped.</div><div>=C2=A0 =C2=A0 Spruce that summer in Kentville could not oo=
ze resin when cut; they very slowly grew an almost solid resin horizontal p=
eg when wounded (so stiff it did not run down as usual). A healthy fast gro=
wing Spruce not under water stress will practically squirt resin when wound=
ed. =C2=A0=C2=A0</div><div>=C2=A0 =C2=A0 In like fashion, insects which bor=
e into bark or wood do not successfully attack healthy trees; contrary to E=
ntomological lore. Cut a healthy Ash on a warm calm day and within an hour=
(less if Ash cut a day earlier are nearby) and it will be alive with small=
Ash weevils. And within 24 hours will have many holes drilled. If under com=
parable conditions a Spruce branch, tree or Pine tree is cut they rapidly a=
ttract bark beetles in large numbers and on their heels Cleridae arrive loo=
king for supper. =C2=A0=C2=A0</div><div>=C2=A0 =C2=A0 And let it be noted t=
hat BSLB was "contained" in PPP until a good wind (Juan ?) generated a juic=
y swath of windfalls along which BSLB could migrate.</div><div>=C2=A0 =C2=
=A0 What is my point ? Problems along the lines of BSLB (improbably suddenl=
y becoming "aggressive" after decades of being lazy; flashing light says "w=
rong wrong")=C2=A0would be more readily handled if the select committee wer=
e more prepared to entertain information from non-committee members.=C2=A0<=
/div><div>Yt, DW, Kentville</div>
<div><br /></div>
<div>------ Original Message ------</div>
<div>From: "Nick Hill" <<a href=3D"mailto:fernhillns@gmail.com">fernhill=
ns@gmail.com</a>></div>
<div>To: <a href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca=
</a></div>
<div>Sent: 5/7/2018 10:35:50 AM</div>
<div>Subject: Re: Re[2]: [NatureNS] Dog-strangling vine in Nova Scotia: ANY =
FURTHER RECORDS OF OCCURRENCE OF DOG-STR-VINE</div><div><br /></div>
<div id=3D"x8ef5af2f8710483"><blockquote cite=3D"CAOK1_GZiQarQoesRRGwCs9VFv=
aoAjS--sZ6Ev2pU4U0kuTpRzw@mail.gmail.com" type=3D"cite" class=3D"cite2">
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"">Hi Dave</div><div=
class=3D"gmail_default" style=3D"">"Invasive" sets off people's fear alarm=
and this results often in unnecessary or disturbing intervention.</div><div =
class=3D"gmail_default" style=3D""><br /></div><div class=3D"gmail_default=
" style=3D"">We do need an ecological think tank that is in place and has a=
cademic credibility.</div><div class=3D"gmail_default" style=3D"">We need a =
group that understands evolution and systems ecology more than taxonomy al=
though all should be involved.</div><div class=3D"gmail_default" style=3D""=
>It should logically come out of the Wildlife Division of DNR. Currently, C=
FIA is involved..DFO as it relates to fishery.</div><div class=3D"gmail_def=
ault" style=3D""><br /></div><div class=3D"gmail_default" style=3D"">Someon=
e with an ecological bent gets a bit upset when we spasm to confront a pest =
like adelgid.</div><div class=3D"gmail_default" style=3D"">I have witnesse=
d the response over Brown Spruce Longhorn Beetle. Saw a lot of big tree fel=
ling and sanitization but not a lot of ecological thought, experiment, stud=
y or peer-reviewed write ups.=C2=A0</div><div class=3D"gmail_default" style=
=3D""><br /></div><div class=3D"gmail_default" style=3D"">I recall the road=
side spray program for the ubiquitous ragweed. It was counter-productive an=
d caused road edges to stay open and serve for the establishment of more ra=
gweed from the seed bank.=C2=A0</div><div class=3D"gmail_default" style=3D"=
"><br /></div><div class=3D"gmail_default" style=3D"">Nick</div><div class=
=3D"gmail_default" style=3D""><br /></div><div class=3D"gmail_default" styl=
e=3D""><br /></div></div><div class=3D"gmail_extra"><br /><div class=3D"gma=
il_quote">On Mon, May 7, 2018 at 9:53 AM, David Patriquin <span dir=3D"ltr"=
><David.Patriquin@dal.ca&g=
t;</span> wrote:<br /><blockquote class=3D"gmail_quote" style=3D"margin:0 0 =
0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr">
<div id=3D"m_5648554139458583328divtagdefaultwrapper" style=3D"font-size:12=
pt;color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif,Helvetica,Emoj=
iFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmo=
ji,"Segoe UI Symbol","Android Emoji",EmojiSymbols" dir=
=3D"ltr">
<p style=3D"margin-top:0;margin-bottom:0">'Lot's of discussion about invasi=
ve species... but so far I have no report on the occurrence of dog-strangli=
ng vine in NS (other than the one I=C2=A0 cited for the Port George area) w=
hich is what I wanted to determine.. how
common is it here?</p>
<p style=3D"margin-top:0;margin-bottom:0"><br />
</p>
<p style=3D"margin-top:0;margin-bottom:0">Also, I wondered=C2=A0if there is =
a group/gov agency which is actively keeping track of invasives in NS</p>
<p style=3D"margin-top:0;margin-bottom:0"><br />
</p>
<p style=3D"margin-top:0;margin-bottom:0">'Any help on these appreciated</p=
>
<br />
<br />
<div style=3D"color:rgb(0,0,0)">
<hr style=3D"display:inline-block;width:98%" />
<div id=3D"m_5648554139458583328divRplyFwdMsg" dir=3D"ltr"><font face=3D"Ca=
libri, sans-serif" style=3D"font-size:11pt" color=3D"#000000"><b>From:</b>=
<a href=3D"mailto:naturens-owner@chebucto.ns.ca">naturens-owner@chebucto.ns=
.ca</a> <<a href=3D"mailto:naturens-owner@chebucto.ns.ca">naturens-owner=
@chebucto.ns.ca</a><wbr>> on behalf of Nick Hill <<a href=3D"mailto:f=
ernhillns@gmail.com">fernhillns@gmail.com</a>><br />
<b>Sent:</b> Saturday, May 5, 2018 4:37 PM<br />
<b>To:</b> <a href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.=
ca</a><br />
<b>Subject:</b> Re: Re[2]: [NatureNS] Dog-strangling vine in Nova Scotia</w=
br></font>
<div>=C2=A0</div>
</div>
<div>
<div dir=3D"auto">Calm...i lived in southeast Kentucky
<div dir=3D"auto">We had kudzu vine=C2=A0 that swallowed abandoned houses..=
.crossex roads via phone lines</div>
<div dir=3D"auto">Scary but before we call Jesus and Mary we notice it did=
not enter intact woodland and was restricted to about 30m from the roaside.=
</div>
<div dir=3D"auto">We do have a couple of plants that are 9f concern because =
they do get into fairly intact ecosystems. I'd put glossy buckthorn at the =
top of the list and then in terms of potential for harm given reports from =
elsewhere, I'd be concerned about
the spread of garlic mustard.</div>
<div dir=3D"auto"><br />
</div>
<div dir=3D"auto">Glossy? It's naturalized now and is part of swamps and ea=
rly forest succession. It's not the end of the world...its green it's a lax=
ative for birds and it fits into a red maple alder tudspuck sedge swamp wit=
h no apparent diversity or community
function effects.</div>
<div dir=3D"auto"><br />
</div>
<div dir=3D"auto">Fight clearcutting and our inability to get any marine pr=
otected areas for the eastern shore because we don't want any impingement o=
n rockweed harvest or oil and gas development.</div>
<div dir=3D"auto"><br />
</div>
<div dir=3D"auto">Great name!</div>
</div>
<br />
<div class=3D"m_5648554139458583328x_gmail_quote">
<div dir=3D"ltr">On Sat, May 5, 2018, 1:21 PM David, <<a href=3D"mailto:=
dwebster@glinx.com" id=3D"m_5648554139458583328LPlnk603761" class=3D"m_5648=
554139458583328OWAAutoLink">dwebster@glinx.com</a>> wrote:<br />
</div>
<blockquote class=3D"m_5648554139458583328x_gmail_quote" style=3D"margin:0=
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Dave P., Bev and all.<br />
=C2=A0 =C2=A0 =C2=A0What an unfortunate name to be saddled with. Just this=
side of <br />
'wanted dead or alive'. I wish to add to Bev's comments about the <br />
abundance of 'invasives'.<br />
=C2=A0 =C2=A0 =C2=A0As a general rule of thumb animals and plants eventuall=
y generate <br />
conditions which threaten their well being/survival. And those which <br />
prevail may do so by "invading" fresh territory which is not loaded with <b=
r />
diseases or parasites.<br />
=C2=A0 =C2=A0 Consequently, if something is threatened the best recovery re=
medy may <br />
be to move a starter kit of it elsewhere. Before lighting long distance <br =
/>
flame throwers think about this in general terms. What is the better <br />
choice 1) act to preserve a flora and fauna which is free of "invasive" <br =
/>
species or 2) act to enable survival of species which may be endangered <br =
/>
?<br />
Yt, DW. Kentville<br />
<br />
------ Original Message ------<br />
From: "Bev Wigney" <<a href=3D"mailto:bkwigney@gmail.com" rel=3D"norefer=
rer" id=3D"m_5648554139458583328LPlnk680117" class=3D"m_5648554139458583328=
OWAAutoLink">bkwigney@gmail.com</a>><br />
To: <a href=3D"mailto:naturens@chebucto.ns.ca" rel=3D"noreferrer" id=3D"m_5=
648554139458583328LPlnk65403" class=3D"m_5648554139458583328OWAAutoLink">
naturens@chebucto.ns.ca</a><br />
Sent: 5/5/2018 9:35:44 AM<br />
Subject: Re: [NatureNS] Dog-strangling vine in Nova Scotia<br />
<br />
>Bad news if Dog-strangling vine (DSV) is here as it is quite a scourge<=
br />
>in eastern Ontario. Everyone struggles to keep it out of their gardens<=
br />
>and it grows rampant on vacant properties or even in woodlands.=C2=A0 I =
was<br />
>in Ontario all last summer and went for walks in several places around<=
br />
>Ottawa and found it growing profusely everywhere.=C2=A0 =C2=A0Fred Schu=
eler may<br />
>comment on the prevalence there and perhaps here as well.=C2=A0 Another =
up<br />
>and comer I saw there spreading out from what might have been its<br />
>Ground Zero in an abandoned industrial park was Tartarian Maple.<br />
>*sigh*<br />
><br />
>As for invasive plants, I haven't found that there is much concern<br /=
>
>over them here in NS although maybe there is a department that records<=
br />
>such things.=C2=A0 I did try to find out about this a few years ago aft=
er<br />
>taking note of an incredible acreage which was just covered with a<br /=
>
>non-native vine -- Wisteria sinensis.=C2=A0 I made mention of it here o=
n<br />
>NatureNS at the time (summer 2013).=C2=A0 It grows rampantly all over t=
he<br />
>woods at this property, but also along the roadside and actually up<br=
/>
>over the powerlines - smothering everything in its path.=C2=A0 I've see=
n it<br />
>spreading out from there, but it seems that is not considered<br />
>problematic.=C2=A0 At the time, I did some readng up on it and discover=
ed<br />
>that just about everywhere, it is considered a serious invasive.<br />
>Reminds me of the Japanese Knotweed around here -- growing along Route<=
br />
>201 and in vacant land in Annapolis Royal.=C2=A0 When I first moved her=
e, a<br />
>neighbour offered to give me some roots of his "bamboo".=C2=A0 He used=
to<br />
>chop it down and toss it into a ravine on his own property and now<br /=
>
>it's growing down there.=C2=A0 I see a lot of it around Bridgetown next =
to<br />
>the river too.=C2=A0 It seems to be everywhere.=C2=A0 =C2=A0However, I=
don't think<br />
>there is much concern.=C2=A0 The truth is, here around Annapolis Royal, =
if<br />
>all of the particularly invasive, non-native plants (multiflora roses,<=
br />
>goutweed, tansy, knotweed, phragmites, wisteria,=C2=A0 etc..) ever<br /=
>
>disappeared overnight, their absence would leave something of a<br />
>wasteland.=C2=A0 I suspect European and Asiatic plants probably outnumb=
er<br />
>natives by about 2 to 1.=C2=A0 I've found that to be the case with snai=
ls<br />
>and slugs and=C2=A0 to some extent with insects as well, by the way.=C2=
=A0 No<br />
>doubt, many of these plants came with the settlers and seem to have<br=
/>
>done quite well over the centuries. Definitely has an impact on the<br=
/>
>ecology of the area -- less native plant hosts for our native insects<b=
r />
>-- and so on.<br />
><br />
>Bev Wigney<br />
>Round Hill<br />
><br />
>On 5/5/18, David Patriquin <<a href=3D"mailto:David.Patriquin@dal.ca=
" rel=3D"noreferrer" id=3D"m_5648554139458583328LPlnk540113" class=3D"m_564=
8554139458583328OWAAutoLink">David.Patriquin@dal.ca</a>> wrote:<br />
>>Some discussion about Dog-strangling vine (Cynanchum rossicum & =
<br />
>>Cynanchum<br />
>>louiseae) came up in a discussion forum on Woods and Waters Nova <b=
r />
>>Scotia; I<br />
>>had not heard of it before in NS and cannot find it in any lists of =
<br />
>>invasive<br />
>>plants for NS.<br />
>><br />
>><br />
>>From the discussion forum, from a resident in the Port George area:=
<br />
>><br />
>>"...can see out my window where it starts . my next door neighbours =
<br />
>>bush is<br />
>>blanketed . from the tops of his mature spruce to the ground....the =
<br />
>>vines<br />
>>next door , that=E2=80=99s where it starts , then it went through o=
ur <br />
>>blackberry<br />
>>field and mostly killed it . now it=E2=80=99s in our woods<br />
>><br />
>><br />
>>So I am wondering how common it is now in NS - I would appreciate a=
ny<br />
>>comments, observations from NatureNS folks<br />
>><br />
>><br />
>>Another question - is there a group or gov agency in NS that is <br =
/>
>>actively<br />
>>keeping track of invasive plants?<br />
>><br />
>><br />
>>At <a href=3D"http://www.invasivespeciescentre.ca/" rel=3D"noreferr=
er noreferrer" id=3D"m_5648554139458583328LPlnk70617" class=3D"m_5648554139=
458583328OWAAutoLink">
http://www.<wbr>invasivespeciescentre.ca/</wbr></a> its distribution is cit=
ed as " <br />
>>in<br />
>>parts of Ontario, southern Quebec and several American states"<br /=
>
>><br />
>><br />
>>Short description<br />
>><br />
>>Dog-strangling vine is found in parts of Ontario, southern Quebec a=
nd<br />
>>several American states. This plant grows aggressively by wrapping=
<br />
>>itself<br />
>>around tress and other plants, and can grow up to two metres high.=
<br />
>>This<br />
>>forms dense stands that overwhelm and crowd out native plants and <=
br />
>>young<br />
>>trees, preventing forest regeneration. The plant produces bean-shap=
ed <br />
>>seed<br />
>>pods for to seven centimetres long and pink to dark purple star-sha=
ped<br />
>>flowers<br />
>><br />
<br />
</blockquote>
</div>
</div>
</div>
</div>
</div>
</blockquote></div><br /><br clear=3D"all" /><div><br /></div>-- <br /><div =
class=3D"gmail_signature" data-smartmail=3D"gmail_signature">Dr. N.M.Hill<=
br />Fern Hill Institute of Plant Conservation<br />424 Bentley Road, Berwi=
ck, NS, B0P 1E0<br /><br />phone 902-698-0416</div>
</div>
</blockquote></div>
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