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EnlargeDark streaking in the xylem underlying a bleeding canker
EnlargeArrested bleeding and underlying lesion
EnlargeLesion underlying basal bleeding canker
EnlargeMottled appearance of necrotic tissue, caused by bleeding canker
EnlargeLesion extension over one year
EnlargeNewly extending necrotic lesion
EnlargeGirdling lesion on horse chestnut branch
EnlargeArmillaria (white mycelium) extending into canker lesion
EnlargeHorse chestnut with fruiting Flamulina on bleed spot