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.Wood - heavy, hard, strong, close-grained. It weighs 45lb per cubic foot. It is used for cross-ties and poles, but is little valued except as a fuel.
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Prefers warmer summers than are usually experienced in Britain, trees often grow poorly in this country and fail to properly ripen their wood resulting in frost damage overwinter. A fast-growing tree in its native habitat, it does not bear seeds until about 20 years old. Seed production is cyclic, a year of high yields being followed by a year of low yields. The tree flowers on new growth produced in spring, the seed taking two summers to ripen. Intolerant of root disturbance, trees should be planted in their permanent positions whilst young. Hybridizes freely with other members of the genus.Plants in this genus are notably resistant to honey fungus.
Problems, pests & diseases
Associations & Interactions
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