Sent at the request of Nancy Taylor, Ohio State diagnostician. Please reply directly to
Nancy.
Thanks!
Enrico
Pierluigi (Enrico) Bonello, Professor
Dept. of Plant Pathology
The Ohio State University
Tel: (614) 688-5401
http://plantpath.osu.edu/bonello -
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From: <Taylor>, nancy <taylor.8@osu.edu<mailto:taylor.8@osu.edu>>
Date: Tuesday, November 6, 2012 2:34 PM
To: Enrico Bonello <bonello.2@osu.edu<mailto:bonello.2@osu.edu>>
Subject: Fungus on Spruce Needles, help ID?
From Nancy J. Taylor, Ohio State University
diagnostician, taylor.8@osu.edu<mailto:taylor.8@osu.edu>
This is from a spruce, not a blue spruce, I think it is Norway. I saw this last year but
since I'm seeing it again this year I thought I would ask if anyone recognizes? The
browning needles are predominately older needles, 4+ years, but there are a few younger
needles also showing symptoms. 2012 needles not affected.
Upon initial examination the needles showed what looked like banding. These fruiting
structures are very distinct, the spores are pretty unremarkable. I've included 40X
and 100X images of the spores. Initially I thought this might be one of the spore stages
of Phyllosticta but the spores do not have the barbell shape I associate with
Phyllosticta. Please ignore the moldy fungi; this has been incubating a few days.
Anyone seen this? Or more importantly, know what this is?
We had a severe drought in Ohio in 2013, I do wonder if this is an endophyte on senescent
needles.
Nancy J. Taylor
C. Wayne Ellett Plant & Pest Diagnostic Clinic
Ohio State University
8995 E. Main St., Bldg. 23
Reynoldsburg, OH 43068
614-403-1640
taylor.8@osu.edu<mailto:taylor.8@osu.edu>
http://ppdc.osu.edu<http://ppdc.osu.edu/>