english oak

english oak

Quercus Robur

Fagaceae

lager photos english oak

Classification

english oak

Height:

30 - 35 m

Leaf:

alternate, without a leaf-stalk (petiole)

Bloom:

April to May, green, inconspicuous

Fruit:

acorns, on stems

Branches:

greenish brown

Bark:

blackish brown, deep grooves

Root:

deep roots in the shape of a heart

Location:

sun to half-shade

Soil:

sandy-loamy to very loamy

ph-value:

slightly acidic to basic

Diseases:

english oak

Mildew

white covering over the leaves. In extreme cases, it is advisable to gain control.

Leaf spots (Septoria spp)

Small brown necrosis on the leaves. This is not dangerous for the tree.

Browning of the leaves

Leaf necrosis that can cover most of the leaf. This is not dangerous for the tree

Oak 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.

Gall midge (Macrodiplosis volvens KFFR.)

This is not dangerous for the tree.

Fungi


Boot - Lace Fungus	Tinder_or_Hoof_Fungus	Shaggy Scalycap	Hardwood trunk rot (false tinder conk)	Smoky Bracket

Southern Bracket	Reishi, Ling zhi	Veiled Oyster	hen of the wood	Giant Polypore

Oak Bracket	Artist's Conk	robustus conk	Poria obliqua	Thick-maze oak polypore

Dryad's Saddle or Pheasant's Back Mushroom	Cinnabar-red polypore	Beefsteak Fungus	Polyporus rheades	False Turkey Tail

Polyporus hispidus	Bleeding Broadleaf Crust	Chicken of the woods - sulphur shelf

Galls are not dangerous for the tree.


Andricus lignicola (HTG) Gallwesp	Trigonapsis megaptera (PANZ.)	Neuroterus quercusbaccarum (L.)	Andricus foecundarix (HGT.) Gallwesp

Trigonapsis megaptera (PANZ.)	Neuroterus numismalis (OLIV.)	Neuroterus laevisculus SCHENK	Andricus quercusradicis

Andricus kollari	Andricus kollari	Biorhiza pallida	Andricus lignicola (HTG.)

Andricus inflator HTG.	Cynips quercusfolii L.	Gallwesp	Biorhiza pallida

You will find more galls under www.pflanzengallen.de

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