The article provides an analysis of investigated plots for Hymenoscyphus fraxineus damage in the Kursk region, which was detected during observations of the sanitary and forest pathology state of forests. The dynamics of the chronic fungal disease of ash trees was monitored using the constant observation objects.
ash dieback, Hymenoscyphus fraxineus, Armillaria, common ash, Fraxinus excelsior, dieback
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