Proctor Maple Research Center, The University of Vermont, Underhill, VT, USA
The University of Vermont Extension, Underhill, VT, USA
Proctor Maple Research Center, The University of Vermont, Underhill, VT, USA
Copyright © 2018 Abby K. van den Berg, Mark L. Isselhardt, Timothy D. Perkins et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.
How to Cite this Article
van den Berg, A. , Isselhardt, M. and Perkins, T. (2018) Identifying Sustainable Practices for Tapping and Sap Collection from Birch Trees: Optimum Timing of Tapping Initiation and the Volume of Nonconductive Wood Associated with Taphole Wounds.
Agricultural Sciences,
9, 237-246. doi:
10.4236/as.2018.93018.