Recent trends in the maple industry IV – bulk syrup prices
This research shows the trends in bulk syrup prices in the U.S. and Canada between 1998 and 2015.
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Recommendations for Proper Plate Filter Press Operation
New filter presses do not always include a complete set of instructions and the proper procedures in using a filter press are not always apparent. This publication is meant to provide guidelines for the proper use of plate filter presses.
Recycling maple plastic
Sugarmakers use a lot of plastic. Recycling is a much needed option to avoid disposing of tons of plastic each year.
Red maple (Acer rubrum) species page
Current inventory and climate change threat information for red maples.
Red maple as crop trees for maple syrup production
The often overlooked value of red maple trees for syrup production
Reduced sap yields from tapping into stained wood
What is the impact on sap production when your tap into an old wound? With tubing systems, it is almost impossible to know for sure. This presentation covers preliminary sap yield data from clean tap holes versus holes that hit brown wood.
Reduced Sap Yields When Tapping Into Non- Conductive Wood
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was hit during tapping on average 4.5% of the time and the responses ranged from 0-41% of the time (UVM Extension 2019 unpublished).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.
Relating Spectrophotometer Readings to Visual Grading of Maple Syrup
Color grading of maple syrup is based on placing syrup samples within four or more categories based either on visual comparison to color references or measurement of light transmission with a spectrophotometer. With a spectrophotometer, specific transmission values are used as break points to divide syrup samples into color grades. The purpose of this report is to describe the lack of agreement between existing light transmission break points and visual grading and how this problem can be addressed.
Relationship between Tree Value, Diameter, and Age in High-Quality Sugar Maple (Acer saccharum) on the Menominee Reservation, Wisconsin
Guidelines for managing sugar maple-dominated forests by the single-tree selection method are well established and widely adopted. The forests of the Menominee Tribe in Wisconsin provide an opportunity to validate current guidelines by testing tree value and size/age relationships in forests that have substantially older and larger high-quality trees than can be found through the northern region. We harvested grade 1 sugar maple trees across a wide spectrum of ages and diameters, which we then manufactured into veneer, sawlogs, cants, and hardwood/pulpwood bolts to determine tree value.
Relationships Between Tubing System Component Age and Sap Yield: A Preliminary Assessment
Although a number of factors affect maple sap flow in vacuum tubing systems, it has become increasingly apparent that sap yields are largely a function of two major influences: vacuum level at the taphole and taphole and tubing sanitation.