[NatureNS] Norway maple leaves with tar spot fungus, intermediate stage?,

Date: Tue, 15 Aug 2006 21:40:42 -0300
From: Jim Wolford <jimwolford@eastlink.ca>
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Aug. 15/06 - PHOTOS taken of a NORWAY MAPLE leaf infected with ?intermediate
stage of TAR SPOT FUNGUS?  Now the earlier initial round whitish splotches
(photographed on Aug. 1/06) on the leaves have been succeeded by larger
splotches that are light green to tan/yellowish, and dark brown dots the
size of large pepper grains that are on some splotches coalescing into what
will probably soon become the familiar all-dark splotches all over the upper
surfaces of the leaves.  Later these splotches often seem to either fall out
of the leaf (as probably the spores of the fungus are being dispersed?),
creating circular/elliptical spaces, or are just resorbed by the leaf.

Perhaps not coincidentally, today on the noon CBC Radio news, I heard just
part of an item concerning some FUNGUS INFECTION OF NORWAY MAPLE in New
Brunswick? (Rothsay?); this infection does not affect other species of
maple, according to the news item.

Is there anyone out there in cyberspace who heard this news item and can
fill in more information here?

Cheers from Jim in Wolfville, 542-9204
---------------------
Jim (James W.) Wolford
91 Wickwire Avenue 
Wolfville, Nova Scotia, Canada
B4P 1W3
phone (902)542-9204 (home)
fax (902)585-1059 (Acadia Univ. Biology Dept.)
e-mail <jimwolford@eastlink.ca>
----------------------
³In every walk with nature one receives far more than he seeks.²  -- John
Muir
----------------------

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