Testing tapping depth vs. sap yield
Results from research into the impact of tap hole depth on sap yield.
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Differential impacts of calcium and aluminum treatments on sugar maple and American beech growth dynamics
Acid deposition induced losses of calcium (Ca) from northeastern forests have had negative effects on forest health for decades, including the mobilization of potentially phytotoxic aluminum (Al) from soils. To evaluate the impact of changes in Ca and Al availability on sugar maple (Acer saccharum Marsh.) and American beech (Fagus grandifolia Ehrh.) growth and forest composition following a major ice storm in 1998, we measured xylem annual increment, foliar cation concentrations, American beech root sprouting, and tree mortality at the Hubbard Brook Experimental Forest (Thornton, New Hampshire) in control plots and in plots amended with Ca or Al (treated plots) beginning in 1995.
Imidacloprid contamination of maple sap following Asian longhorned beetle quarantine treatment
Both the Asian longhorned beetle and the use of imidacloprid to protect sugar maples from this pest pose a threat to maple syrup producers.
Does sugar removal impact trees? A complex question to answer.
Two main issues relate to the sustainability of maple sugaring; tree wounding and sugar removal. In other words, does a tapped maple tree grow more wood than is compartmentalized (functionally “removed by the tree’s normal wound response process) each year and/or does sap collection take more sugar from the tree than can be readily replaced through photosynthesis? These two issues, although separate in some respects, are inextricably intertwined.
Some in maple season and out of season tests on 3/16″ maple tubing
3/16″ tubing can provide some yield benefit by creating natural vacuum. That benefit will be directly related to the elevation drop of the lateral line.
Sap Now or Sawlogs Later
Tapping trees has an impact on the value of those trees’ logs for lumber.
A Future Without Maple: The threat of the Asian Longhorned Beetle
The ALB poses a grave threat to maple trees, and to the maple syrup industry.
Counting Sugar Makers
Analysis of the 2012 U.S. Census of Agriculture’s report on the maple industry.
Cloudiness’ effect on refractometer measurements
Accurately measuring density is critical to the production of pure maple syrup. This article explores how impurities in syrup can affect the accuracy of tools used to measure density.
Collect More Sap Without Vacuum Pumps
Using 3/16″ tubing can create non-mechanical vacuum that can increase sap yield.