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<DIV>Hi Jeff, </DIV>
<DIV>Yes, for sure there are often graft incompatibilities that are
made worse when the Black Ash fails to thrive. Black Ash typically only do well
when planted close to water in fertile, sandy acidic soil: hence their
alternate common name: "Swamp Ash" So unless you can replicate their native
environment, it is not a species that I would recommend for Urban Areas in the
Prairies. In Alberta, we have lost thousands of "Native" and Manchurian Swamp
Ash due to lack of soil and climate (drought) hardiness as well as insects,
( Cottony ash psyllid), so it is beyond me why any municipality would want it
planted, especially given the inevitable coming of the Emerald Ash
Borer to a town near you!</DIV>
<DIV>Gerard Fournier, BCMA # PR-0130BT<BR>Owner/Operator<BR>For Trees
Company<BR>Tree Canada Advisor-Southern Alberta</DIV>
<DIV> </DIV>
<DIV>Trees For Life...Landscapes for Living...<BR>403-335-8965<BR>CHECK out our
new web site at <BR><A href="http://www.fortrees.ca">www.fortrees.ca</A>-----
Original Message ----- </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Jeff.Boone@Saskatoon.ca href="mailto:Jeff.Boone@Saskatoon.ca">Boone,
Jeff (IS - Parks)</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=canufnet@list.web.net
href="mailto:'canufnet@list.web.net'">'canufnet@list.web.net'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, August 17, 2009 8:22
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [CANUFNET] graft
incompatilibity</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal>Hi<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>In Saskatoon, we are having problems with many of our black
ash starting to decline when they are 15-20 years old. They have a few
different symptoms but typically we see leaf drop, branch death and
delaminating bark. All of the trees are grafted onto green ash root
stock. When we dissected the graft we saw a very clear line at the
graft. It looks like the graft did not form properly. There was no
obvious overgrowth at the graft but there is a kink at the graft that becomes
more pronounced with age. Not all black ash are affected but we only
began planting in the early 90s.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Has anyone experienced graft problems with ash or similar
symptoms in other trees? <o:p></o:p></P>
<P class=MsoNormal>Thanks<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">Jeff W.
Boone<o:p></o:p></SPAN></B></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">Entomologist B.Sc.
M.Sc <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">(306) 975
3466<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">(306) 220 5368
(cell)<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">1101 Ave P
N<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">Saskatoon
SK<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial','sans-serif'">S7K
0J5<o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p> </o:p></P></DIV></BLOCKQUOTE></BODY></HTML>