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Index of Subjects Thanks for the reply David. I loved your analogy of "wooden eskers". Great description! The dead tree was in a forest of maples, I would guess sugar maples, as there are a lot of maple syrup operations in this area. Thanks again for the reply! Cindy On Mon, Jan 18, 2010 at 1:48 PM, David & Alison Webster <dwebster@glinx.com> wrote: > Hi Cindy & All, Jan 18, 2010 > Those horizontal borings are 'exactly' the workings of some beetle; larval > or adult ? No doubt Chris or Dave M can narrow the field to species level. > Very curious and photogenic. I will go out on a twig and guess that it might > be a Bostrichidae. > > Those curious ridges are scars that arise when insect tunnels are covered > over by, I assume, cambial activity that is somehow stimulated by the > initial injury. I have never seen such elegant almost sine waves as these > but have seen less regular 'wooden eskers' in Poplar, Red Maple and White > Birch. Was this tree a Poplar ? > > Yt, Dave Webster, Kentville > ----- Original Message ----- From: "Cindy Creighton" > <cindycreighton@gmail.com> > To: <naturens@chebucto.ns.ca> > Sent: Monday, January 18, 2010 12:58 AM > Subject: [NatureNS] Horizontal Bore Holes in Dead Tree > > >> Hi All: >> >> We were in the woods today and came across this dead tree with unusual >> horizontal lines on it, which covered the entire trunk from top to >> bottom. I wonder if someone can tell me exactly what made these lines >> on a dead tree, or perhaps they were what killed the tree in the first >> place. There is a single "bore" hole near most of the horizontal >> lines. I was wondering if this could be the handiwork of a spruce >> budworm or something similar? The second picture shows the single >> hole next to the lines better. There is also a raised squiggly >> vertical line - wondering what this is too. Thanks for any help. >> >> Pic 1: >> http://www.pbase.com/cindycreighton/image/121184333/original.jpg >> >> Pic 2: >> http://www.pbase.com/cindycreighton/image/121184334/original.jpg >> >> Cindy Creighton >> Springhill, NS >> cindycreighton@gmail.com > > > -------------------------------------------------------------------------------- > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.432 / Virus Database: 270.14.145/2626 - Release Date: 01/16/10 > 07:35:00 > >
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