From Bayshore News “The Emerald Ash Borer continues to migrate north, now the infestation is reported in Kincardine. Officials say they have received confirmation that the destructive bug has reached the community.
In a news release, town officials
say the response plan will address the removal of infected trees on
municipal land that may present a hazard to public safety or
This is not the first report of EAB in Grey Bruce but does show
that it is becoming more prevalant in the area. Whilst previously
efforts were made to 'control' the spresd of the pest by removing all
ash trees under municipal areas is has become evident that the spread
CANNOT BE STOPPED and that the removal of trees is simply for safety
and liability purposes. Also efforts were made when they were first
found in southern Ontario to restrict the movement of firewood and
lumber from infected areas to non infected areas, such restrictions
still exist but in that the 'control
area' now encompasses all of Ontario north to Sudbury and beyond
it is not a consideration for the average landowner in Grey Bruce.
In that this insect has been a problem in many northern states for
many years there is quite a bit of information available but there
are NO METHODS TO CONTROL it. I have been unable to find any
information as to if it effects young regrowth saplings except that
“the female lays numerous eggs in bark crevices and between layers
of bark” so presumably until the tree is mature enough for such
crevices exist they will not lay their eggs in then. However it is
noted that they will kill a tree “before it is mature enough to
produce seed” so long term they could eradicate the ash tree in
As a landowner with 1000s of ash trees in my bush and millions
more on surrounding properties what can I do about it all? Nothing
except keep my head up when working or hiking in the bush. I will be
trying to select ash trees, particularly those showing signs of
dieback, for firewood rather than other species and leaving the
Maple, Cherry and other unaffected trees to fill in but given the
amount of ash regrowth it will be beyond my lifetime before it makes
any significant impact in my bush.
All that said here is a little information from various sites
giving details on the Emerald Ash Borer:-
The adult emerald ash borer emerges May - July and the female lays
numerous eggs in bark crevices and between layers of bark.
The eggs hatch in 7-10 days into larvae which bore into the tree
where they chew the inner bark and phloem creating winding galleries
as they feed. This cuts off the flow of water and nutrients in the
tree, thereby causing the tree's dieback and death.
Signs & Symptoms of EAB
The most visible sign of infestation is crown dieback. Branches at
the top of the crown will die and more branches will die in
subsequent years. As the tree declines, ‘suckers’, or new young
branches, will sprout from the base of the tree and on the trunk.
The bark may also split vertically and woodpeckers may feed on the
beetle leaving visible damage on the bark. Successful treatments with
insecticides are limited but continue to be studied. All ash trees
near any new infestation will most likely become infested and die.
Adult beetles emerging from trees will leave a unique “D”
shaped exit hole. This is a small 1/8 inch diameter distinctly “D”
shaped hole that may appear anywhere on the trunk or upper branches.
link for some good pictures of the life cycle of the EAB and some
of the damage it does.
As of today, most of the areas
currently regulated to control Emerald Ash Borer (EAB) in Ontario
and Quebec are now consolidated into one large regulated area. This
will enable authorities to better protect Canada's forests by
focusing on preventing EAB from spreading into new parts of Canada.
It is prohibited to move firewood of all species, as well as
ash trees, ash nursery stock or ash wood (including wood chips, wood
packaging or dunnage), out of this area without written permission
from the Canadian Food Inspection Agency (CFIA). These materials
could be infested and spread EAB. Moving these materials from the
regulated area without permission could lead to fines and/or
Infested ash trees become extremely porous and are at risk of
breaking or falling, posing a danger to residents, adjacent
buildings, vehicles and property. For landowners, businesses or
municipalities who have prized ash trees, the inoculation treatment
is a natural, biological compound called TreeAzin which degrades
naturally in the tree tissues.
for the treatment vary according to the tree size as well as
outside conditions such as temperature, wind speed and the level of
humidity. Prices can vary between $100 - $500. The
process must be done between June and mid-August and must be repeated
every 2 years for full effectiveness.
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