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Analýza příčin chřadnutí a odumírání bříz ve vybraných parcích hl. m. Prahy
 Spěváček, Michal
The study is a comprehensive survey of silver birch trees (Betula pendula) located in four parks in Prague 6. In 2022, a dendrological survey of 112 trees was carried out. Selected manifestations of decline (dieback, sapwood, trunk swellings, trunk base wounds, exit holes, fungal fructification organs) were quantified and examined including laboratory tests. With the exception of Disculina betulina, no harmful non-native organisms were confirmed, but research on bacterioses and phytophthora was not conducted. It was concluded that the health and vitality of birch trees are significantly impaired across the surveyed parks and age classes. The decline of birch trees in Prague is a long-term problem resulting from various causes with drought probably playing a central role. Damage to the root and trunk base is also a crucial factor. The paper provides suggestions for improvement in its conclusion.
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