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Resin extraction

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Process of collecting sap or resin from pine trees

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Resin extraction consists of incising the outer layers of apine tree in order to collect the sap orresin.

Summary

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Resin circulates throughout aconiferous tree and a few others, and serves to seal damage to the tree. Harvesting pine resin dates back toGallo-Roman times inGascony.

Tapping pines may either be done so as to sustain the life of the tree, or exhaustively in the years before the tree is cut down.

Traditional tapping

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In Gascony, and to a lesser extent inProvence, pine-tapping was practiced as a form ofsharecropping, although uncertain status of the workers sometimes led to labor disputes.

Although almost abandoned during the 20th century, inSpain it has experienced something of a resurgence. Cesefor^[1] is a Spanish non-profit foundation, which promotes forestry in Spain and its industry including Non-Wood Forest Products (NWFP): resins, cork, berries, nuts, and mushrooms, among many others.

Procedure

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Resin is usually collected by causing minor damage to the tree by making a hole far enough into the trunk to puncture thevacuoles, to let sap exit the tree, known as tapping, and then letting the tree repair its damage by filling the wound with resin. This usually takes a few days. Then, excess resin is collected.

Gallery

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Lithuanian deportees into Russia extract resin near Irkutsk.
Resin

References

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^"NWFP".MedForest. 2024-01-11.Archived from the original on Nov 14, 2023. Retrieved2024-03-09.

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