3.8 Article

First report of powdery mildew of coastal wattle (Acacia sophorae) caused by Erysiphe quercicola

Journal

AUSTRALASIAN PLANT DISEASE NOTES
Volume 16, Issue 1, Pages -

Publisher

SPRINGER
DOI: 10.1007/s13314-021-00421-3

Keywords

Powdery mildew; Australian flora

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A powdery mildew identified as Erysiphe quercicola was found infecting the coastal wattle, Acacia sophorae, in northern New South Wales, Australia. This is the first record of powdery mildew infection for this native Australian plant.
A powdery mildew was found associated with the coastal wattle, Acacia sophorae, at Tullymorgan, in northern New South Wales, Australia. Morphological characterisation identified it as belonging to the genus Erysiphe, while internal transcribed spacer (ITS) sequencing and phylogenetic analysis confirmed it as Erysiphe quercicola, a pathogen with a worldwide distribution and a broad host range. This is the first record of E. quericola infecting A. sophorae, and the first powdery mildew infection recorded for this native Australian plant.

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