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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I have also been tracking these fungi on Norway maple for many years after discovering what they were…they too eventually develop to lichens if the air quality is good enough.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>So if you see this you know that at least the air quality is good enough for lichens to grow…never seen this on a very urban tree.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='color:#1F497D'>Philip van Wassenaer, B.SC., MFC<o:p></o:p></span></b></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>1248 Minnewaska Trail<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Mississauga, Ontario<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Canada, L5G 3S5<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Tel: (905) 274-1022<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Cell: (647) 221-3046<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Fax: (905) 274-2170<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><img width=153 height=73 id="Picture_x0020_1" src="cid:image001.jpg@01CDED9F.14EB4B80" alt="UFI new logo very small"><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><a href="http://www.urbanforestinnovations.com/">www.urbanforestinnovations.com</a><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> canufnet-bounces@list.web.net [mailto:canufnet-bounces@list.web.net] <b>On Behalf Of </b>Gail Rankin<br><b>Sent:</b> January-08-13 12:19 PM<br><b>To:</b> Canadian Urban Forest Network<br><b>Subject:</b> Re: [CANUFNET] White Blotches on Maples solved<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I agree with the findings. I have noticed these whitish patches on old lilac stems and have followed them for years. They do eventually develop into lichen growth.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Gail Rankin, B. Sc.<o:p></o:p></p></div><div><p class=MsoNormal>Rankin Horticulture Consulting Inc<o:p></o:p></p></div><div><p class=MsoNormal>Edmonton, AB<o:p></o:p></p><div><div><p class=MsoNormal>On Jan 8, 2013, at 7:19 AM, Shields, Peter wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><div><div><p class=MsoNormal style='margin-bottom:12.0pt'>I saw that article which confirmed what Mark and James wrote. Good stuff.<o:p></o:p></p><div><p class=MsoNormal>Thanks<o:p></o:p></p></div><p class=MsoNormal>Peter Shields<o:p></o:p></p><div><p class=MsoNormal>Consulting Arborist<o:p></o:p></p></div><div><p class=MsoNormal>Davey Resource Group<o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>On 2013-01-08, at 9:17 AM, "Brian Geerts" <<a href="mailto:GeertsB@cambridge.ca">GeertsB@cambridge.ca</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>We have had a number of inquiries about this in our area as well. There’s also a write-up in the Orillia Packet here:</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><a href="http://www.orilliapacket.com/2012/04/30/local-science-and-nature">http://www.orilliapacket.com/2012/04/30/local-science-and-nature</a></span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><o:p></o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Brian Geerts</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Manager of Forestry</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>City of Cambridge</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Dickson Centre</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>30 Parkhill Road W. ON N1R 5W8</span><o:p></o:p></p><p class=MsoNormal><span style='color:navy'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><a href="mailto:geertsb@cambridge.ca">geertsb@cambridge.ca</a></span><o:p></o:p></p><p class=MsoNormal><span style='color:navy'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'><a href="Tel:519.740.4681">Tel:519.740.4681</a> x4558</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Fax: 519.624.6975</span><o:p></o:p></p><p class=MsoNormal><span style='color:navy'> </span><o:p></o:p></p><p class=MsoNormal><span style='color:navy'> </span><o:p></o:p></p></div><div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:canufnet-bounces@list.web.net">canufnet-bounces@list.web.net</a> [<a href="mailto:canufnet-bounces@list.web.net">mailto:canufnet-bounces@list.web.net</a>] <b>On Behalf Of </b>Shields, Peter<br><b>Sent:</b> Sunday, January 06, 2013 3:56 PM<br><b>To:</b> Canadian Urban Forest Network (<a href="mailto:canufnet@list.web.net">canufnet@list.web.net</a>)<br><b>Subject:</b> [CANUFNET] White Blotches on Maples solved</span><o:p></o:p></p></div><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>With many responses to the original post, I believe this one form M. Burleton and J. Brown at NCC in Ottawa have solved the problem. Thanks Mark and James! I have quoted their response with their permission below. Perhaps a submission to Detective Dendro one year!</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>“<i>The best case scenario I have so far is the un-lichenized fungus <b>Julella fallaciosa</b> or <b>white stain fungus</b>. This isn't a algae partnership to make it a true lichen. It is a crust (crustose), type of structure this why you didn't find filament edges or scaly edges, you can find in other tree inhabiting species. </i></span><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'> </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'>As you know lichens are composite organisms consisting of a symbiotic association of a fungus and a green algae living together. Lichens do not generally harm the tree or other living matter that they a growing on-they obtain their mineral nutrients from the air. </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'> </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'>In some cases of the filmentose types may create heavier branches and in a storm and could be more likely to fail because the extra weight. Growth can seem to be stunted by heavy amounts of these lichen, but it is usually on weaker or slower growing trees. I have seen this happen on the west coast and in Scotland.</span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'> </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'>White stain fungus, is a "nearly" lichen, and many fungi apparently, have acquired this mode of life. </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'> </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'>I looked to see if fungi or lichens in my many reference books, searching though a few internet sites and it came out to same type of lichen like fungus. </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'> </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'>This could be the first part of the association of a lichen with the white stain fungus growing on the maple and looking for an algae associate.</span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'> </span></i><o:p></o:p></p><p class=MsoNormal><i><span style='font-family:"Times New Roman","serif"'>In most cases the white patches are just the white stain fungus looking to become a lichen and although unsightly, I don't believe it harm or kill maples. In my woodlot at home, it is present on my young and mature sugar and black maples. I haven't seen any detrimental effects to them in 16yrs.”</span></i><span style='font-family:"Times New Roman","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Peter Shields </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'>Senior Consulting Arborist</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'>ISA BCMA ON-0570B, ISA PNW CTRA #1590, OMNR BHA #252, ASCA member</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>(905) 274-8300</span><o:p></o:p></p><p class=MsoNormal><image001.jpg><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p></div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>This communication is confidential and may contain information protected by Privacy<br>legislation. Unauthorized use is strictly prohibited. If you are not the intended<br>recipient or have received this communication in error, please notify the sender <br>immediately by telephone. <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p></div></div></div></blockquote></div></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><div><div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>Gail Rankin<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>Rankin Horticulture Consulting Inc.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><a href="mailto:ranking@shaw.ca">ranking@shaw.ca</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p></div></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p></div></div></body></html>