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Hi Paul & All, Aug 20, 2009
M. notatus quickly moves into Pine logs (the familiar Zig-Zag bug of =
log brows unless I am mistaken) and the natural equivalent; windthrows, =
dying trees and dead trees.
It might be present after the fact but would not be the cause of =
tree death.
I would suspect some period of extreme dry weather to have been the =
cause.
Yt, Dave Webster, Kentville
----- Original Message -----=20
From: Paul S. Boyer=20
To: naturens@chebucto.ns.ca=20
Sent: Thursday, August 20, 2009 9:53 AM
Subject: Re: [NatureNS] Jack Pine Die-back ???
Could this critter be a suspect? It is Monochamus notatus, who =
attacks pines and some other conifers. I saw him yesterday in =
Seabright, which is also on the coast of St. Margaret's Bay, Halifax RM.
http://idisk.mac.com/docbnj/Public/Monochamus_notatus.jpg
http://idisk.mac.com/docbnj/Public/Monochamus_notatus_close.jpg
=97 Paul Boyer
On 18 Aug 2009, at 9:11 AM, David&Jane Schlosberg wrote:
We were out for a walk in the Peggy's Cove area (the hills on the =
opposite side of the road, up from the parking lot where the skating =
rink is to be built). A large stand of pines there are dead, but there =
is some appparently healthy new growth.
-----Original Message-----
From: naturens-owner@chebucto.ns.ca =
[mailto:naturens-owner@chebucto.ns.ca]On Behalf Of Dusan Soudek
Sent: Monday, August 17, 2009 3:41 PM
To: NatureNS
Cc: Richmond Campbell; Beth McGee
Subject: [NatureNS] Jack Pine Die-back ???
Two days ago, while traversing the proposed Five Bridge Lakes =
Wilderness Area of the Chebucto Peninsula (HRM) by canoe, I noticed a =
large number of dead Jack Pines in the barrens and semi-barrens near =
Upper Five Bridge Lake. The dead trees show no signs of porcupine or any =
other damage, remain upright, and may have died a few years ago. All =
other tree species in the area (Tamarack, two spruce species, Paper =
Birch) appear to be healthy.
The dead Jack Pines are too high above the lake to have been =
negatively effected by a slight rise in the lake's level due to a new =
beaver dam at its outlet. They are solitary trees or in small clusters, =
and not part of a canopy, so it doesn't seem likely that they are being =
outcompeted by other tree species as part of a natural ecological =
succession.
Any other sightings of clusters of dead Jack Pines in the area? =
In the province? Any speculation on what may be happening here?
Dusan Soudek =20
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<DIV><FONT size=3D2 face=3DArial>Hi Paul &=20
All, &nb=
sp; =20
Aug 20, 2009</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial> M. notatus quickly =
moves into=20
Pine logs (the familiar Zig-Zag bug of log brows unless I am mistaken) =
and the=20
natural equivalent; windthrows, dying trees and dead trees.</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial></FONT> </DIV>
<DIV><FONT size=3D2 face=3DArial> It might be present =
after the=20
fact but would not be the cause of tree death.</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial></FONT> </DIV>
<DIV><FONT size=3D2 face=3DArial> I would suspect some =
period of=20
extreme dry weather to have been the cause.</FONT></DIV>
<DIV><FONT size=3D2 face=3DArial>Yt, Dave Webster, =
Kentville</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: =
black"><B>From:</B>=20
<A title=3Dpsboyer@eastlink.ca =
href=3D"mailto:psboyer@eastlink.ca">Paul S.=20
Boyer</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dnaturens@chebucto.ns.ca=20
href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, August 20, 2009 =
9:53=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [NatureNS] Jack =
Pine=20
Die-back ???</DIV>
<DIV><BR></DIV>Could this critter be a suspect? It is =
<I>Monochamus=20
notatus</I>, who attacks pines and some other conifers. I saw =
him=20
yesterday in Seabright, which is also on the coast of St. Margaret's =
Bay,=20
Halifax RM.
<DIV>
<DIV><BR></DIV>
<DIV><A=20
=
href=3D"http://idisk.mac.com/docbnj/Public/Monochamus_notatus.jpg">http:/=
/idisk.mac.com/docbnj/Public/Monochamus_notatus.jpg</A></DIV>
<DIV><A=20
=
href=3D"http://idisk.mac.com/docbnj/Public/Monochamus_notatus_close.jpg">=
http://idisk.mac.com/docbnj/Public/Monochamus_notatus_close.jpg</A></DIV>=
<DIV><BR></DIV>
<DIV>=97 Paul Boyer</DIV>
<DIV><BR>
<DIV>
<DIV>On 18 Aug 2009, at 9:11 AM, David&Jane Schlosberg =
wrote:</DIV><BR=20
class=3DApple-interchange-newline>
<BLOCKQUOTE type=3D"cite">
<DIV bgcolor=3D"#ffffff">
<DIV><SPAN class=3D312040813-18082009><FONT color=3D#0000ff size=3D2 =
face=3DArial>We=20
were out for a walk in the Peggy's Cove area (the hills on the =
opposite side=20
of the road, up from the par