Hymenoscyphus fraxineus diseases, a photo gallery by N. Keca (UB-FF)

18/01/2017/in PHOTO GALLERY, Symptoms-Forestry /by Staff

A photo gallery of Hymenoscyphus fraxineus diseases, provided by Nenad Keca (University of Belgrade-Faculty of Forestry)

Wood discoloration-Hf

Shoot wilting caused by Hf

Shoot dieback and defoliation of Ash trees

Secondary organisms colonizing dead bark tissues

Necroses with point of isolation

Hymenoscyphus fraxineus fruitbodies on Ash petioles in litter

Elliptic brown necroses on shoots

Bark necrosis on Ash shoot

Leaf necrosis caused by H. fraxineus

Early symptoms of Ash decline

Development of Ash dieback on old tree-Hf

Advanvced declining of Ash tree and healthy one-Hf