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. A fairly wind-tolerant tree, it can be used in shelterbelt plantings. 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. On a 10% moisture basis, the bark contains 16.9% tannin.Wood.
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Cultivated for its bark in Europe, it is the main source of cork. 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. Trees grow well in Cornwall where there are many large specimens. Trees grow quite well at Kew[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 Q. suber occidentalis. Hybridizes freely with other members of the genus.This species is notably resistant to honey fungus.
Problems, pests & diseases
Associations & Interactions
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Polycultures & Guilds
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