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The health status of hawthorns growing in different greenery areas of Poznań was evaluated in 2008–2009. In 2008 rust symptoms caused by Gymnosporangium confusum were observed on both Crataegus monogyna and C. oxyacantha, but in the next year the rust did not occur. In 2009 the powdery mildew caused by Phyllactinia corylea on the lower side of leaves of C. monogyna as well as Entomosporium leaf spot...
The assessment of health state of broadleaf shrubs was carried out in 2008–2009 in three public gardens of Poznań city: Wilson’s Park, Sołacki Park and Raszyński Park. Withering was observed on many plants in 2008 as result of a long-lasting drought. In the summer and autumn of 2008–2009 the following powdery mildews were found: Microsphaera berberidis on Mahonia aquifolium, M. hedwigii on Viburnum...
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