Populus canadensis

Leaf necrosis

Small black spots that grow together to form larger spots. Not dangerous for the tree.

Diseases Populus canadensis

Other Broadleaf Foliar Diseases (Melampsora larici-populina)

Poplar spiral gall aphid (Pemphigus spirothecae PASS.)

Not dangerous for the tree.

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.

Classification Populus canadensis

Height: up to 30 m

Leave: rounded and triangula

Bloom: April, catkins

Fruit: greenish brown catkins

Branches: yellowish to light gray

Bark: first white and smooth, later covered in bark and black, deep grooves

Root: shallow root, extremely long

Location: sun to half-shade

Soil: sandy-loamy to clayey

ph-value: slightly acidic to slightly alkalescent