Occurrence of Erysiphe flexuosa (syn. Uncinula flexuosa) on horse chestnut (Aesculus hippocastanum) in Hungary

/Home/Garden Basics/Trees/Tree Diseases/Chestnut Tree Diseases/Chestnut Tree Powdery Mildew

L. Kiss
a
*, L. Vajna
a
and G. Fischl
b
a
Plant Protection Institute, Hungarian Academy of Sciences, PO Box 102, H-1525 Budapest; and
b
University of Veszprém, Georgikon
Faculty of Agriculture, Deák Ferenc Street 57, H-8360 Keszthely, Hungary

In August 2002, horse chestnut (Aesculus hippocastanum) trees exhibiting the symptoms of powdery mildew
infections were observed in two Hungarian localities
around Lake Balaton. In 2003, powdery mildew infections of horse chestnut trees were also observed in two
other cities (Keszthely and Budapest) in Hungary. White
powdery mildew colonies appeared and spread on
the upper and lower leaf surfaces of both young and old
leaves.

© 2004 BSPP