First report of Oidium baccharidis on Baccharis trimera in Brazil
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Powdery mildew disease was observed on Baccharis trimera in Brazil in January, 2009. Based on the morphological characters, the pathogen was identified as an Oidium baccharidis. This is the first report of this fungus causing powdery mildew on Baccharis in Brazil. © Australasian Plant thology ociety 2010.