Oak galls are excrescences that are sometimes produced in great numbers on the tree and are caused by the activity of the larvae of different insects. The insects live inside these galls, obtaining their nutrient therein. When the insect pupates and leaves, the gall can be used as a rich source of tannin, that can also be used as a dyestuff. Bark is the source of cork, it is much used for heat and sound insulation, flooring, floats etc. Trees are first harvested when they are 25 - 30 years old, and then harvested every 6 - 12 years. The bark must be removed carefully so as not to harm the tree. A large tree can yield up to 1 tonne of cork.Wood.
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Cultivated for its bark in Europe, it is the main source of cork. This sub-species has slightly thinner bark than the species.Trees are first harvested when they are 25 - 30 years old and are then harvested on a 10 - 12 year rotation. Only hardy in the milder areas of Britain, it is not very frost resistant. This sub-species is somewhat hardier than the type. Trees grow well in Cornwall where there are many large specimens. There is at least one large healthy specimen of this tree at Kew, it produced some seeds in the hot summer of 1989[K]. Transplants badly unless it is moved regularly, it should only be moved in September or as growth commences in late spring. Does not fruit well in Britain. Most of the trees grown in Britain as Q. suber are in fact this sub-species. Hybridizes freely with other members of the genus.This species is notably resistant to honey fungus.
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Quercus suber occidentalis. Do you know of an interaction that should be listed here? to add it.
Polycultures & Guilds
There are no polycultures listed which include Quercus suber occidentalis.
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