HomeMy WebLinkAboutThe Rural Voice, 2004-03, Page 45Woodlot
Management
form new tissue in a new location, i.e.
put a new layer outside the wood
already present. This means that a
wound will always remain present in
the wood. For example, when a
maple tree is tapped to produce tnaple
syrup, the tree will cover the hole
over with a new layer of wood at the
outside of the tree, but the hole will
always remain present. Even 50 or
more years later, if the tree is sawn
into lumber, the hole will still be
there, assuming it hasn't disappeared
due to decay. Similarly, wounds to
the tree's stem from logging, animal
activities etc. will always result in
defects in logs sawn from the tree,
even if the injuries are covered over
by new layers of wood.
When trees are wounded, it
sometimes also results in
discolouration and decay. Dr. Shigo
discovered that trees react to
wounding by trying to isolate or
compartmentalize thty injured area.
Trees have internal barriers that resist
the spread of infections. In response
to injury, these barriers are strength-
ened, but differ in strength depending
on direction within the tree. Infection
is much less likely to spread into new
wood formed outside the injury than
it is to spread up or down the tree or
towards the centre of the tree. This
explains why some trees become
hollow, i.e. it is often the result of an
injury many years ago.
Tree species also influences the
strength of interior barriers, e.g. a
longer living, durable species such as
white oak has much stronger barriers
than species with shorter lives and
less decay resistance such as poplar.
Barrier strength also varies
depending on location within the tree.
The area around branch collars has
strong protection boundaries. Proper
pruning of branches at the branch
collar reduces the chance of decay
developing. Improper pruning flush
with the tree trunk that removes the
branch collar creates a larger wound,
bypasses the tree's protection
boundaries and significantly
increases the chance for major
defects to develop.
Side branch pruning is sometimes
carried out by woodlot owners to
improve the eventual quality and
GREAT LAKES
FOREST • PRODUCTS
• Buyers of standing timber & logs
• All woodlots paid in full before
logging begins
(519) 482-9762
Jake or Bob Hovius
"Our Money...Grows on Trees"
WINGHAM
FORESTRY SERVICE
R.R. #1, Wingham
Ontario NOG 2W0
TREE MARKING FOR TIMBER
SALES OR FUEL WOOD
CALL (519) 335-6768
MURRAY HALL -
FORESTRY TECHNICIAN
2004 GREY -BRUCE WOODLOT
fPCONFERENCE
"Forest
Foresight"
� g
Elmwood Community Centre
Saturday, March 27, 2004
9:00 A.M. - 3:30 P.M.
• View Displays (9:00 a.m. )
• Participate in Conference (9:30-3:30)
• Forest Inventory - doing your own
forest inventory
• Wetlands and Ponds
• Asian Long Horn Beetle & Emerald Ash Borer
• Tree Planting - which species and how
• A Landowner Perspective
Pre -registration Cost - $20.00 per person, payable to Grey -Bruce
Woodlot Conference (includes hot meal) Registration at the door
$25.00 includes hot meal
Sunday, March 28, 2004 - 1:00 p.m. - 4:00 p.m.
A field trip to expand on the practical side of a landowner conducting their own forest inventory.
Cost is $10.00. Admission is free for those who attend the Saturday
Conference or are a member of the Bruce County Woodlot Association
or Grey County Woodlot Association. Pre -registration is necessary.
For More Information or to register contact:
Saugeen Valley Conservation 519-364-1255 ext. 33 or jpenner@svca.on.ca
Those who wish to set up an exhibitor display, please contact Jim Penner
519-364-1255 ext. 33 or jpenner@svca.on.ca
The 2004 Grey -Bruce Woodlot Conference & Exhibition is hosted by;
BRUCE
RESOURCE,
NETWORtW)
Mk LI
Grey Saubie
Conservation
Authority
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Bruce County
Woodlot Association
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MARCH 2004 41