|
| |
| |
| Classification | european
alder |
| Height: | 8
- 25 m |
| Leaf: | alternate,
round without a leaf tip |
| Bloom: | March
– April, male catkins, noticeable, brown – female, inconspicuous |
| Fruit: | woody
and cone-like, dark brown |
| Branches: | heart-shaped
roots |
| Bark: | blackish
brown, flat scales |
| Root: | heart-shaped
roots |
| Location: | sun
to half-shade |
|
Soil: | sandy
to loamy, moist |
| ph-value: |
neutral to slightly acidic |
| Diseases: | |
european alder
|
| | |
| Alder
decline | | Symptoms:
Small leaves, thin foliage, necrosis at the lower trunk and yellowing. Cause is
unknown. | |
| | |
| Leaf
curls (Taphrina tosquinetii) | | Extremely
wavy leaves caused by fungi. The fungus should be controlled before an outbreak.
| |
 |
| Galls
(Eriophyes laevis laevis) | | Leaf
deformations caused by gall mites. This is not dangerous for the tree. |
|
 |
| Galls
(Eriophyes laevis laevis) | | Leaf
deformations caused by gall mites. This is not dangerous for the tree. |
|
 |
| Alder
tongue (Taphrina amentorum) | | | |
 |
| 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. | |
| | |
| | Fungi |
| |
