Guignardia aesculi (Peck) V.B. Stewart, (horse chestnut leaf blotch - causative organism)


5 Sep 2007 at OSGR: SK38 in South-west Yorks, England

Record Summaryon horse chestnut
Found as
Date5 September 2007
OS grid refOSGR: SK38
Lat/Lon53° 20’ N, 1° 30’ W
Vice CountySouth-west Yorks, VC no: 63
CountryEngland
Voucher5 Sep 2007[E]
(Please quote this in any queries about this record)

Notes:

Pycnidia epiphyllous, 50 to 170µm diam., hyaline, forming pale pimples in darkest part of leaf spots.

Conidia: ovoid, hyaline, 16.5/9µm.

The following literature was used to identify this find:

standard photographs and close-ups
standard photographs and close-ups:
macro-photographs
macro-photographs:
photomicrographs
photomicrographs:

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