According to a recent survey of more than 300 maple producers in the northeast United States, nonconductive wood was hit during tapping on average 4.5% of the time and the responses ranged from 0-41% of the time (UVM Extension 2019 unpublished). Previous research has explored factors that impact the likelihood of tapping into NCW. Significant factors include but are not limited to; dropline length, taphole diameter, tapping intensity (number of taps/tree) and stem growth (van den Berg and Perkins 2014). Other work touched on the relationship between the amount of conductive wood exposed while tapping and yields (Wilmot et al. 2007). But to date, there has been no direct investigation as to the relationship between the percent of NCW is intercepted while tapping and sap yield. The present study sought to understand the relationship between the amount of NCW in a given tap how and the amount of sap collected, as well as understanding if other factors (sap sweetness) might impact total yields between treatments.
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Optimal syrup production starts at the tree, and requires thinking beyond the current season. This session focuses on tapping practices that both maximize yield and ensure long-term sustainability of your sugarbush. Topics include timing of tapping, taphole placement, taphole sanitation, and sap collection.
Presentation by Dr. Abby van den Berg, UVM Proctor Maple Research Center, at the NY Mid-Winter Classic Conference.
This is a basic guide to identifying three maple species during the growing and dormant seasons. We look at key identifying characteristics such as branching patterns, leaf shapes and bark patterns. Additionally, we include identifying characteristics of two other trees that could cause confusion in the sugar bush.
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.
Back by popular demand! Abby van den Berg will share results and progress from various research projects on maximizing yields and sustainability at the UVM Proctor Maple Research Center.
Because the impacts on yields of early tapping strategies, with or without subsequent rejuvenation, are likely to be affected by weather conditions which can vary widely from year to year, controlled experiments over multiple years are required in order to more fully assess whether any of these strategies result in greater yields than tapholes made during the standard spring sap flow period, or whether any increases in yield would be sufficient to compensate for the increased costs associated with implementing them. Thus, we conducted a multi-year, controlled experiment to assess the yields of several early tapping strategies, with and without subsequent rejuvenation, relative to the yields of standard spring tapholes.
What I am proposing in this article is that woodland owners consider sap and syrup production as a way to increase the financial benefits derived from their forest resource by tapping their trees, and increase the fun in owning a woodlot with a good “sugarin off” party.
In recent years, research at Cornell University’s Uihlein Maple Research Forest has looked at ways to maximize maple sap production through tapping practices such as spout selection, re-tapping and timing of tapping.
This aim of this project was to determine whether early spout and dropline deployment before tapping could be used while maintaining good sanitation levels and high sap yields.