Other Plant Disease — Worldwide/Unknown
_Erysiphe corylacearum_, causing an emerging powdery mildew of hazelnuts, was first observed in Romania in 2019-2020 on hazelnut trees (_Corylus avellana_) in forests in the Eastern and Southern Carpathian Mountains.
[ref: Chinan VC, Mânzu CC. Occurrence of _Erysiphecorylacearum_ causing powdery mildew of _Corylus avellana_ in Romania. Forest Pathology, 2021; e12681; ]
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Communicated by:
ProMED
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[2]
Date: February 2021
Source: European Plant Protection Organisation
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