Alnus incana
Speckled
Alder
Betulaceae
Canker (Nectria galligena)
Fungi that leads to the breaking off of bark. Affected twigs and branches should be removed and burned. If the trunk is affected, then an expert should be called to remove canker.Diseases Alnus incana
Alder decline:
Symptoms: sparse foliage, yellowed leaves, dying limbs and branches. Dying of the bark and the following mucous secretion. At this time there is no treatment possible.Leaf curls (Taphrina tosquinetii)
Extremely wavy leaves caused by fungi. The fungus should be controlled before an outbreak.
Classification Alnus incana
Height: 8 - 20 m
Leave: alternate, pointed ovate, top and bottom are covered with hair
Bloom: March - April, male catkins are noticeable, yellow - female
are inconspicuous
Fruit: woody and cone-shaped, dark brown
Branches: smooth, gray, lightly hairy
Bark: light gray, smooth
Root: shallow roots
Location: sun - half-shade
Soil: sandy - loamy to loamy, dry - moist
ph-value: slightly acidic to basic
