The Rural Voice, 2003-12, Page 64BARKMAN FORESTRY
SERVICES
• Buyers of standing timber
• Tree marking and
woodlot management
Firewood.
large or small amounts.
Log length or split.
519-229-8685
BERNIE McGLYNN
LUMBER LTD.
BUYER OF HARDWOOD BUSHLOTS
Wholesaler - Hardwood Lumber
Box 385, R R 2,
Wmgham, Ont. NOG 2W0
BERNIE McGLYNN
Ph/Fax (519) 357-1430
1l
SAWMILL
R R. #5, Mildmay, Ont.
(519) 367.5789
st
64
64
Warren D. Moore
Forest Specialist
specializing !n:
* Woodlot Management
* Timber Marking and Marketing
* Tree Pruning, Tree Removal
* Tree Planting Services
Certified Managed Forest Plan Approver*
Provincial Tree Marker
V Blyth523-9855
/.
v. • Woodlot management
1't Choice
Forestry Consulting
•
•
planning �' q
Tree Marking and Advertising
Experienced in theory
as well as practical
Provincially Certified Tree Marker
Paisley
(519) 353-7185
UI�HIft
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60 THE RURAL VOICE
Woodlot Management
We're being invaded
Steve Bowers
is a forester
and forest
owner, a
member of
the Huron -
Perth
Chapter of
the Ontario
Woodlot
Association
and
Stewardship
Co-ordinator with the Huron
Stewardship Council.
Two "Alien Invaders" recently
discovered in southern Ontario are
causing significant concern for
foresters and woodlot owners. The
Emerald Ash Borer has attacked trees
in Windsor and adjacent forests in
Essex County. Another insect, the
Asian Long -Horned Beetle, was
discovered in north central Toronto in
September of this year. Both these
beetles are from Asia and in their
larval stages bore inside hardwood
trees potentially causing mortality of
otherwise healthy trees. Both were
likely introduced in wooden packing
material for machinery imported from
Asia.
As its name suggests, the Emerald
Ash borer is primarily a pest of ash
trees. Signs of infestation are
thinning of foliage and eventual tree
mortality, as well as one -eighth -inch
wide "D" shaped exit holes in the
bark through which adult beetles
have emerged. The adult beetles are
present from mid-May to early
August and are metallic green in
colour, a half-inch long and a
sixteenth of an inch wide. Recent ash
mortality throughout southern
Ontario resulting from drought
conditions over the past couple of
years has made many landowners
wonder if their trees are infested by
Emerald Ash Borer. To date, the
only confirmed Ontario infestations
are in Essex and Kent Counties.
The Asian Long -Horned Beetle,
recently discovered in Toronto,
attacks both hard and soft maple as
well as a number of other hardwood
species. The adult beetle is one to
one and a quarter inches long with
antennae that are two inches long.. It
creates circular exit holes
approximately one half inch in
diameter in infested trees. The beetle
is black with white spots and the
antennae are black and white. A
single beetle was also discovered in
Waterloo several years ago, but to
date no infestation has been found in
that area.
Adult beetles of both species can
fly (Emerald Ash Borer adults can fly
at least three miles) however
transporting infected logs or firewood
has significant potential to increase
their rate of spread. It is unlawful to
transport any insects or infected
wood material out of infested areas.
Potential impacts of these pests
are significant from both economic
and ecological perspectives. Ash and
maple are two of the primary groups
of forest species present in woodlots
in southern Ontario and form a major
portion of production of local
saw:nills. They are also commonly
planted in urban areas. Ironically,
ash has often been used to replace
elm trees lost to Dutch Elm Disease.
At present there is no control for
either of these pests except removal
and destruction of infested trees
which is being undertaken by
appropriate authorities for both
infestations. Also, as Essex County
has very little forest cover there has
been discussion of creating a
"firebreak", or a zone free of ash
trees to halt further spread of the ash
borer. Past introductions of alien
insect pests have typically resulted in
outbreaks along the leading edge of
the infestation. Through time
populations often collapse as their
natural parasites, diseases and pests
catch up to them and native species
learn to prey on them. Only time will
tell if control measures are successful
or, if not, what impact these pests
will have on our forests.
In the meantime woodlot owners
should monitor their woodlots, and
report any insects or symptoms that