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<DIV style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt">
<DIV>We mulch heavily when we can. It keeps the weeds down and moisture
in. The only drawback is on wet sites that become wetter with a blanket on
them. Have a look at the attached doc from one of our projects. The
goal was to improve the soil by mulching heavily and letting it rot in an old
field with hard clay soil. All we did was put mulch down and wait 2 years.</DIV>
<DIV> </DIV>
<DIV>Stephen Smith</DIV>
<DIV>Urban Forest Associates Inc.</DIV>
<DIV><A href="http://www.ufora.ca">www.ufora.ca</A></DIV>
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<DIV> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=pwassenaer1022@rogers.com
href="mailto:pwassenaer1022@rogers.com">Philip van Wassenaer</A> </DIV>
<DIV><B>Sent:</B> Thursday, March 31, 2011 9:47 AM</DIV>
<DIV><B>To:</B> <A title=canufnet@list.web.net
href="mailto:canufnet@list.web.net">'Canadian Urban Forest Network'</A> </DIV>
<DIV><B>Subject:</B> Re: [CANUFNET] To Mulch or Not To Mulch</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I
agree that the organics are very important as well protecting the fine new roots
we need to encourage.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Mulch
is good. Bad mulching practices are bad!<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>Philip van Wassenaer, B.SC., MFC<o:p></o:p></SPAN></B></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>1248 Minnewaska Trail<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>Mississauga, Ontario<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>Canada, L5G 3S5<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>Tel: (905) 274-1022<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>Cell: (647) 221 3046<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"
lang=EN-US>Fax: (905) 274 2170<o:p></o:p></SPAN></P>
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style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><IMG
id=Picture_x0020_3 alt="UFI logo extra space.JPG"
src="cid:A551261B7B4C48A09D497BE9346F6098@StephenSmithPC" width=158
height=84><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><A
href="http://www.urbanforestinnovations.com/">www.urbanforestinnovations.com</A><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
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style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
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style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
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<DIV>
<DIV
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<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt"
lang=EN-US>From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang=EN-US>
canufnet-bounces@list.web.net [mailto:canufnet-bounces@list.web.net] <B>On
Behalf Of </B>Jack Radecki<BR><B>Sent:</B> Wednesday, March 30, 2011 5:29
PM<BR><B>To:</B> 'Canadian Urban Forest Network'<BR><B>Subject:</B> Re:
[CANUFNET] To Mulch or Not To Mulch<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p></o:p> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">These
new findings contradict my 35 years of experience in the field and monitoring
tree growth throughout. Perhaps they are talking about mulch volcanoes or
excess mulch over the root zone. I have only seen the benefits and the proof is
the resuts that I have seen over many years. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Ask
yourself the questions about how organic matter is replenished in a forest?
Trees "feed" themselves from their own litter. Without the mulch you put the
tree into an inorganic, inert world and prone to the many problems that we are
aware of, drought obviously is the main killer of young
trees.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Jack
Radecki Registered Consulting Arborist 342<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p></o:p></SPAN> </P>
<DIV>
<DIV
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<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt"
lang=EN-US>From:</SPAN></B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang=EN-US>
canufnet-bounces@list.web.net [mailto:canufnet-bounces@list.web.net] <B>On
Behalf Of </B>terri smith<BR><B>Sent:</B> March-30-11 12:49 PM<BR><B>To:</B>
Canufnet Canufnet<BR><B>Subject:</B> [CANUFNET] To Mulch or Not To
Mulch<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p></o:p> </P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Calibri','sans-serif'">I would
like to know if there are any municipalities that have stopped applying mulch on
newly planted boulevard trees. Current research indicates that mulch
should not be placed over the root ball because it causes roots to grow up into
the mulch area, it also causes roots to remain within the root ball area instead
of growing out laterally, and it actually prevents the water from penetrating
deep into the soil. Dr. Ed Gilman and Dr. Hannah Mathers both agree that
no more than 2 – 2.5 inches of mulch should be applied outside of the root ball
area (if mulch is still going to be applied) and both are in agreement that
mulch provides no benefit to the tree. At 2 inches of mulch there is
little to no weed suppression.</SPAN><o:p></o:p></P>
<P class=MsoNormal><o:p></o:p> </P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Calibri','sans-serif'">These new
findings contradict our current mulching practices and have created much debate
within our department. I would like to hear from other municipalities that
have either discontinued mulching or have never mulched their blvd trees.
Is there a need to increase the amount or frequency of
watering?</SPAN><o:p></o:p></P>
<P class=MsoNormal> <o:p></o:p></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Calibri','sans-serif'">Terri
Smith</SPAN><o:p></o:p></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Calibri','sans-serif'">Urban
Forestry</SPAN><o:p></o:p></P>
<P class=MsoNormal><SPAN style="FONT-FAMILY: 'Calibri','sans-serif'">City of
Saskatoon</SPAN><o:p></o:p></P></DIV></DIV></DIV></DIV></BODY></HTML>