Phytophthora bleeding canker
Phytophthora bleeding cankers are infections of the bark of trees by various species of the fungus-like organism Phytophthora. Infection causes bark lesions (cankers) that bleed a dark or reddish- brown sticky fluid.
Scientific name Various Phytophthora species
Plants affected Various trees including Aesculus (horse chestnut), Tilia (lime) and Alnus (alder)
Main symptoms Cankers oozing a dark sticky fluid
Caused by Fungus-like (Oomycete) organism
Timing Symptoms seen all year
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