Origin: North America
First finding in Slovenia: 2010
Pathways: spores are accidentally transported with sawing equipment. Secondary spreading with wind and insects.
Possible to identify: June – November
Habitat: Infects only leaves of Plane-trees. Like other powdery mildew species, it is most abundant on sun-exposed leaves which grow in higher temperatures.
Status in Slovenia: Found in Ljubljana and Bovec, for other parts of Slovenia we do not have data yet.
Similar species: the lace bug Corythucha ciliata causes widespread damage of leaves of Plane trees.
More information on CABI