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<div dir="ltr" data-setdir="false"><div dir="ltr" data-setdir="false"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">To All,</span></div><div dir="ltr" data-setdir="false"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">Thought I would send a couple thoughts for scheduled tree pruning to the forum,</span></div><div dir="ltr" data-setdir="false"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">This may not help but here it is...</span></div><div dir="ltr" data-setdir="false"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA"><br></span></div><div><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">In regards to tree pruning, is a schedule an accurate way of determining
the proper way to look after one of our natural heritage assets.</span></div>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">It seems we look after our trees completely different from our other
assets. We inspect our roads, we inspect our play ground equipment, and we
inspect our buildings and so on and make the necessary repairs or preventative maintenance
as needed. With trees we seem to have the need to just send crews out to prune. Do our crews have the knowledge, do our crews care enough, and do our
crews have enough experience? If you use a contractor, we use the low bid. Will
these contractors send us their best to prune, highly unlikely? They send their
cheapest crew so they can cover the low bid. </span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">Structural pruning is what I would call “subjective to the individual
doing the work”. Pruning a tree every 5, 7 years just because it is part of the
rotation can have devastating effects on trees. Remember “the best thing you
can do to a tree is prune it, the worst thing you can do to a tree is prune it”.</span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">Boulevard trees are subjected to a multitude of deceases, hardships, and
pests. Salt, heat, vehicle damage, lack of habitat, lack of nutrients, lack of
soils and the list can go on. It’s a wonder we have trees at all these days.
Add to this the unnecessary pruning and you now have a tree that may not survive
or at best be under constant stress.</span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">Extensive structural pruning in warmer climates may be beneficial to
some trees. Longer growing seasons and better habitats will afford the tree
better conditions to heal quicker without putting stress on the tree. Ed Gilman,
a well known expert in structural pruning will not hesitate to remove more than
50% of a tree to prune it for proper structure. My opinion is that this may be ok for a tree in Florida where the growing season is almost 12 months of the year,
but will it work in Ontario where we only have 6 to 7 months of a growing
season. Will 50% be too much for a tree to handle here and will it take longer
to heal? This may leave it exposed to deceases and pests for a longer period of
time with wounds leading to cavities and weakened structures.</span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">When we look at pruning schedules, what do we want? Structural pruning? 2.5
to 3 meters over the sidewalk? 4 to 6 meters over the road for safe vehicle passage?
How big will branches be when removed? No larger than 8 to 10 cm? No main trunk
cuts? Do you thin out the Tree? Do you do reduction cuts? Do you have to climb
each tree? Is each cut made from the ground? What is your budget? How many
trees do you have to do?</span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">What about basing the pruning on the type of tree? Does a Locust need as
much pruning as a Linden, or vise versa? Locust are over used, as are Lindens along
our municipal street-scapes. Are they the best trees to be planting? Lindens are
notorious for over growing on the lower branches and will need to be drastically
elevated once they have reached 10 to 15 years of age or older. This will encourage
epicormic shoots to grow and now we are back removing these shoots in a few
short years. Lindens often have the co-dominant leaders that will present a
problem when they are mature. Do you remove one whole leader all at once leaving
the tree looking lopsided with a large open wound, or do you remove one leader
slowly over a period of time. <span> </span>Locust
have a bad habit of shutting down branches, which leaves deadwood throughout
the tree. Locust too, can have long straggly branches, small leaves and insect
infestations that residents have trouble with leading to many visits for
pruning. How do you manage this if you are on a 7 year pruning cycle? </span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">Trying to get developers, consultants, landscape architects, engineers
and planners to diversify our tree canopy is a struggle, more like pulling
teeth. Who doesn’t like the Freemanii Maple? They are planted everywhere. How
much pruning will these trees need? They have the structure and growth pattern
of a Silver Maple and it is the fall colour of the Red Maple that makes them so
utilized. Usually multiple co-dominant stems and lateral branching wherever the
sun seems to hit it the most. Locust, Lindens and some sort of Maple cultivar
is the average species list that come with any sort of subdivision agreement.
Trees are never planted correctly, so when municipalities assume boulevard
trees they are usually under stress from being dug in too deep, the worst
nursery stalk and planted with ropes and burlap not completely removed. We
assume thousands of trees each year and may never get to see each tree until
years later and then it will be some time after that before we can actually prune
all of them. By this time it may be too late to properly prune a tree.</span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">I would recommend a species determined schedule for pruning. (Does that
make sense?) Hopefully we are now looking at diversity for tree planting along
our boulevards. Pick species that will do well, show better structural growth
patterns, fit the habitat that they are growing and withstand the harsh growing
medium that they will be presented with. This may lead to a better option for
pruning schedules. Training methods must be improved and staff must have the
passion for preserving our trees and doing what should be done, this includes
pruning practices. </span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">So as a summary to scheduled pruning??? Yes, if done properly! If a tree
does not need to be pruned, don’t prune it. I don’t think you can write a
tender that will cover proper pruning of a tree. Pruning is too subjective. No
2 trees are ever alike, they never need the same type of pruning. Training
methods and opinions are too diverse. If we ever get to the point where we can
actually engineer a tree that is the day when we can schedule pruning. We also
need to well staff Urban Forestry Departments. If we can fully train and
control pruning methods, that will help us with scheduling. Urban Forestry Departments
are always under funded and under staffed. We rely on the “Request for Tender”
for outside crews to the majority of work. Do we get the best? Again “maybe”
most likely not. </span></p>
<p class="ydp96b939bbMsoNormal"><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">I always say” we all know we need trees, we just don’t want trees”. How
often have you heard somebody say that they do not want a tree at or around
their home? NIMBY!!! “Leaves get in my eaves trough, I have to rake too many
leaves, there is too much shade for my grass grow” etc. But that same person
will go to a park and sit under a tree to watch their family members play a
sport or go to the playground and splash pad. Trees are often an after thought.
Not really looked upon as an essential asset. Municipalities will often have
more staff cutting grass, filling pot holes, doing snow removal, controlling water-waste
water, than looking after their trees. This thought may be changing since there
has been more concern for our natural environment all over the world. It will
take time and money to do the right thing for our trees. I hope I see it in my
life time.</span></p>
<div><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA">I hope this helps with “Tree Pruning Scheduling”. Most likely not, but I
thought I would send my 2 cents worth anyways.</span></div><div><span lang="EN-CA" style="font-size:10.0pt;line-height:107%;mso-bidi-font-family:Calibri;mso-bidi-theme-font:minor-latin;mso-ansi-language:EN-CA"><br></span></div><div dir="ltr" data-setdir="false"><p class="ydped8955f8MsoNormal" dir="ltr" data-setdir="false"><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600"
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Certified Arborist/Qualified Arborist Tech/Lead Hand</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"> |
Public Works, </span><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 11pt;">Town of Whitchurch-Stouffville</span></div><div><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 11pt;">111 Sandiford Dr., Stouffville ON | L4A 0Z</span><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 11pt;">8</span></div><div><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">905-640-1910 Ext. 4249| Cell; 416-791-1040 | </span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(46, 116, 181);">mark.carroll@</span><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><a href="http://www.townofws.ca/" rel="nofollow" target="_blank"><span style="color:#0563C1">townofws.ca</span></a></span></div><p></p><div><br><div><br></div><div><br></div></div><p></p></div></div><div dir="ltr" data-setdir="false"><br></div><div><br></div>
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On Tuesday, January 14, 2020, 09:49:19 a.m. EST, Hettmann, Joerg via CANUFNET <canufnet@list.web.net> wrote:
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<p class="yiv3391933860MsoNormal">Hello All;</p>
<p class="yiv3391933860MsoNormal">We are in the process of developing a long-term tree maintenance strategy for the City of Vaughan, including a tree pruning rotation. While we preliminarily have considered a seven year cycle, we would appreciate any information from other
municipalities on their strategies. </p>
<p class="yiv3391933860MsoNormal">We are also looking for information to what degree proper tree pruning enhances tree growth(yield), resistance, and age. This information would be very helpful in our valuation of the investment into tree maintenance.</p>
<p class="yiv3391933860MsoNormal"> </p>
<p class="yiv3391933860MsoNormal">Thank you for any information you may be able to share.</p>
<p class="yiv3391933860MsoNormal"> </p>
<p class="yiv3391933860MsoNormal"> </p>
<p class="yiv3391933860MsoNormal"><b><span style="font-family:sans-serif;">Joerg Hettmann, R.P.F.
</span></b><b><span style="font-family:sans-serif;"></span></b></p>
<p class="yiv3391933860MsoNormal"><b><span style="font-family:sans-serif;">Manager of Forestry and Horticulture</span></b><b></b></p>
<p class="yiv3391933860MsoNormal"><span style="font-family:sans-serif;">905-832-8577 ext. 6139<span style="color:#1F497D;"> I
<a rel="nofollow" ymailto="mailto:joerg.hettmann@vaughan.ca" target="_blank" href="mailto:joerg.hettmann@vaughan.ca"><span style="color:blue;">joerg.hettmann@vaughan.ca</span></a></span></span><span lang="EN-CA" style="color:#1F497D;"></span></p>
<p class="yiv3391933860MsoNormal"><span style="font-family:sans-serif;color:#1F497D;"> </span></p>
<p class="yiv3391933860MsoNormal"><b><span style="font-family:sans-serif;">City of Vaughan I Parks Forestry and Horticulture Operations</span></b><b><span style="color:#1F497D;"></span></b></p>
<p class="yiv3391933860MsoNormal"><span style="font-family:sans-serif;">2141 Major mackenzie Dr., Vaughan, ON L6A 1T1</span></p>
<p class="yiv3391933860MsoNormal"><b><span style="font-family:sans-serif;color:#0070C0;">vaughan.ca</span></b><b><span lang="EN-CA" style="color:#0070C0;"></span></b></p>
<p class="yiv3391933860MsoNormal"><span lang="EN-CA"> </span></p>
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<b><span style="font-family:sans-serif;color:#232323;"> </span></b></p>
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