The needles contain a substance called terpene, this is released when rain washes over the needles and it has a negative effect on the germination of some plants, including wheat. Smoke from the burning leaves has been used to get rid of fleas. The tree is a good source of resin but it is not exploited commercially. Oleo-resins are present in the tissues of all species of pines, but these are often not present in sufficient quantity to make their extraction economically worthwhile. The resins are obtained by tapping the trunk, or by destructive distillation of the wood. In general, trees from warmer areas of distribution give the higher yields. Turpentine consists of an average of 20% of the oleo-resin and is separated by distillation. Turpentine has a wide range of uses including as a solvent for waxes etc, for making varnish, medicinal etc. Rosin is the substance left after turpentine is removed. This is used by violinists on their bows and also in making sealing wax, varnish etc. Pitch can also be obtained from the resin and is used for waterproofing, as a wood preservative etc. The knots contain so much resin that they resist rot. They burn well and have been gathered and placed at the ends of sticks to make torches.Wood - coarse-grained, light, soft, brittle, not strong, very durable, resinous. It weighs 32lb per cubic foot. Mainly used for charcoal and fuel, it is occasionally sawn into lumber.
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Leaf secretions inhibit the germination of seeds, thereby reducing the amount of plants that can grow under the trees. Because of its tolerance of poor soils, the northern pitch pine is used in America for re-afforesting worn-out lands. It is planted on a small scale for timber in many European countries. Growth of young seedlings is slow, but from the age of about 5 years they are fairly fast growing with average annual increases in height of almost 30cm. Growth soon tails off in areas where the tree is not well suited. Most trees in Britain are found in S. England. The cones are 3 - 9cm long, they open and shed their seed whilst still attached to the tree and can persist on the tree for 10 years or more. Plants are strongly outbreeding, self-fertilized seed usually grows poorly. They hybridize freely with other members of this genus. Sucker shoots are often produced from the trunk. This is the only species of pine known to produce suckers.Plants in this genus are notably susceptible to honey fungus.
Problems, pests & diseases
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Polycultures & Guilds
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This table shows all the data stored for this plant.
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