Wilting of leaves in spring in large parts of the crown; on the stem detachment of the bark, from the stem base up to several meters, mostly limited to one side, later on around the stem; quick deteoration of the dead bark tissues, wood below with only slight local discoloration (greenish), sometimes pink-violet; occasionally cracks on the stem
Affected tree species
Leaf; Stem; Shoot/Twig/Branch;
Locally known from Italy, Germany and Austria, where various microfungi might play a role (still unknown). Primary cause probably extreme weather-conditions as frost or extreme drought.
Curative measures Check discolored woody tissues for Plane canker (Ceratocystis fimbriata forma sp.platani - quarantine organism!), check stability of the tree, remove dying trees
plane bark disease: wilting and thinning of the crown
Plane bark disease: longitudinal cracks on the stem above the area of detached bark
plane bark disease: large sized detachment of stem bark