First report of powdery mildew of Aesculus hippocastanum caused by Erysiphe flexuosa in Turkey

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E. Tozlu
A
and E. Demirci
B,C
A
Eastern Anatolia Agricultural Research Institute, 25090 Erzurum, Turkey.
B
Department of Plant Protection, Faculty of Agriculture, Atatürk University, 25240 Erzurum, Turkey.
C
Corresponding author. Email: drerkol@hotmail.com
Abstract. Powdery mildew symptoms were observed on the leaves of horse chestnut (Aesculus hippocastanum) which is
common in urban areas of Ordu province, Turkey. The pathogen was identified as Erysiphe flexuosa based on morphological
characters. This is the first report of E. flexuosa on horse chestnut from Turkey.