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    Author(s): Russell S. Walters; Alex L. Shigo
    Date: 1978
    Source: Gen. Tech. Rep. NE-47. U. S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, Broomall, PA. 12 p.
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (6.76 MB)

    Description

    Maple syrup production starts by drilling a taphole in the tree. This process injures the wood, which may become discolored or decayed as a result. If trees are to be tapped, every effort must be made to minimize injury while obtaining the desired amount of sap. Information about tapholes is given here for the benefit of the producer. Some important points discussed are: how trees compartmentalize discolored and decayed wood associated with tapholes, how some tapping procedures lead to cambial dieback around the hole, the problem of overtapping related to increased use of mechanical tappers, and new information on the use of para formaldehyde pills, which can lead to more decay in trees.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Walters, Russell S.; Shigo, Alex L. 1978. Tapholes in sugar maples: What happens in the tree. Gen. Tech. Rep. NE-47. U. S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station, Broomall, PA. 12 p.

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