The Cornell Maple Program presents Sweet Talk, with hosts, co-directors of CMP, Aaron Wightman and Adam Wild. Your hosts will present the latest research, news, and trends in the maple industry, with various guests including other maple researchers, industry experts, and local sugarmakers.
Showing 41 – 50 of 355 resources
The feasibility of re-tapping maple trees during the sap season was tested in 2019 and 2020 at Cornell University’s Uihlein Maple Research Forest in Lake Placid, NY. This report summarizes that project.
Dr. Abby van den Berg, Research Associate Professor with UVM’s Department of Plant Biology and Proctor Maple Research Center, shares the results of a multi-year experiment conducted by the University of Vermont Proctor Maple Research Center to determine the net yields and impacts of fall and early-winter tapping, with and without subsequent “freshening” of the tapholes by re-drilling them wider and/or deeper.
Dr. Tim Perkins, Director of UVM’s Proctor Maple Research Center, shares a review of the past year at PMRC and a collection of recent findings on topics related to sap and syrup production.
Actual yields in many maple operations are often lower than those achievable under optimum conditions. Dr. Abby van den Berg, Research Associate Professor with UVM’s Department of Plant Biology and Proctor Maple Research Center, presents practices to narrow this gap, from tree to sugarhouse.
Sap flow and stem pressure in sugar maples during winter dormancy depend on the expansion and contraction of gas bubbles. These gas bubbles are primarily located in the libriform fibers of wood tissues, not in the xylem vessels. Though there are gas bubbles (embolisms) in the xylem vessels, these bubbles are not the dominant drivers of stem pressurization.
Work done at the Uihlein Maple Research Forest in Lake Placid during the 2018 and 2019 maple syrup season looked at timing of tapping to best capture the most amount of sap. During this study it was found that trees tapped in late March did not yield as much syrup since they missed early sap runs. Trees tapped in January were able to capture early season sap runs but yield diminished slightly near the end of the season due to microbial plugging.
Aaron Wilson, an atmospheric research scientist, discusses the risks climate change poses to maple syrup production.
Changes in the amount of sugar in maple sap vary within a sap run, from day to day, throughout the season, and from year to year.
Presentation about organic maple defoamer research.