UVM Proctor Maple Research Center – Page 2

Effects of Tapping Depth on Sap Volume, Sap Sugar Content, and Syrup Yield Under High Vacuum

Tapping depth strongly influences both sap yield and wounding. Numerous studies have focused on the amount of sap produced with ifferent depths, the most extensive work conducted by Morrow (1963), who found a tendency for increasing sap yields with increasing taphole depth. However, this work was conducted on gravity with 7/16” tapholes, so is less informative to most producers using 5/16” spouts and vacuum.

Publication:: Maple Syrup Digest
Date:: March 1, 2021

Factors Affecting Sap Yields from Maple Trees

Presents research on taps and tapping practices to maximize yield. Also explains sap flow and tree wounding.

Date:: February 19, 2021

Early Tapping and Taphole Longevity Strategies Dec 2020 VT Conference

Dr. Abby van den Berg presenting on research on early tapping and taphole longevity strategies on sap yield and non-conductive wood (NCW) formation in maple trees at the Dec 2020 Vermont Maple Conference.

Date:: January 19, 2021

Keys to High Maple Sap Yields Dec 2020 VT Conference

Dr. Abby van den Berg presentation on important factors to achieve high maple sap yields. Given at the December 2020 Vermont Maple Conference.

Date:: January 19, 2021

UVM Proctor Maple Research Center – Update 2020

Dr. Tim Perkins presents an overview of recent research activities at the UVM Proctor Center at the 2020 Vermont Maple Conferences.

Date:: January 19, 2021

Maximizing Maple Sap Yields

How to collect the most sap possible using efficient techniques.

Date:: December 4, 2020

Sap sugar within, between seasons at UVM PMRC

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.

Publication:: Maple News
Date:: November 7, 2020

Organic maple defoamer

Presentation about organic maple defoamer research.

Date:: October 30, 2020

Researchers downplay fall tapping

Three-year study finds little payoff in sap yield for sugarmakers who tap in the fall.

Publication:: Maple News
Date:: October 3, 2020

Some quick tips to achieve higher sap yield

Increasing the yield of sap from maple trees is the goal of most maple producers. While getting there isn’t a matter of one simple thing, by
following best management practices and paying attention to detail it is possible to increase sap yields, often quite dramatically. Includes links to videos.

Publication:: Maple News
Date:: October 3, 2020