Journal für Kulturpflanzen - Journal of Cultivated Plants (2013) 65, 347-350

Jan Hinrichs-Berger and Gabriele Müller (2013)
Zum Auftreten von Marssonina coronaria an Apfel in Baden-Württemberg
[Occurence of Marssonina coronaria on apple in Baden-Wuerttemberg]
Journal für Kulturpflanzen - Journal of Cultivated Plants 65 (9), 347-350
Abstract: Apple leaf blotch disease caused by Marssonina coronaria (teleomorph Diplocarpon mali ) was detected in several regions of Baden-Wuerttemberg. It was observed on numerous apple cultivars, especially in allotments and extensive grassland-orchards (Streuobstwiesen). M. coronaria is very probably not a "new" pathogen in Baden-Württemberg, since apple trees showing premature defoliation and typical leaf blotch symptoms were already observed before 2010.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Diplocarpon coronariae	Apple (Malus)	Germany