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David Moore

Ph.D. student

David ran The Crooked Chimney (www.crookedchimneysyrup.com) in Lee, NH, for several years. The Crooked Chimney produced birch syrup commercially, and eventually, it began to produce sycamore syrup as well. While at The Crooked Chimney, David compared the concentration of dissolved solids from the sap of three different species of birch trees [paper birch (Betula papyrifera), yellow birch (Betula alleghaniensis), and sweet birch (Betula lenta)], and found that the concentration of paper birch sap was roughly twice that of the other two species. David and The Crooked Chimney appeared in Michael Farrell’s book The Sugarmaker’s Companion: An Integrated Approach to Making Syrup from Maple, Birch, and Walnut Trees.

David's research at UNH will focus on sap harvesting and syrup production from trees other than maple trees. Several genera of deciduous, woody angiosperms (such as Alnus, Carya, Ostrya, and Platanus) are known to produce edible sap, but methods of harvesting the sap and processing the sap into syrup have not been developed; other genera (such as Betula and Juglans) are already commercially important for syrup production, but research on their sap and syrup is limited compared to that of maples (Acer spp.). Should climate change adversely affect the production of maple syrup, these novel species could become important syrup-producing trees. The goal of this research is to determine the impacts of drought and other climate-related events on sap flow in these novel species as well as to determine how to harvest and process sap from these novel species for syrup production.

Under the guidance of Karl Guillard, David studied carbon (C) and nitrogen (N) cycling in the soil under cool-season turfgrass ecosystems at the University of Connecticut for his MS. Currently, N fertilization of cool-season turfgrass lawns is done at a set rate, regardless of soil N mineralization potentials; if soil N mineralization potentials can be accurately predicted by soil tests, it is likely that N fertilization requirements can be predicted more accurately, and in areas where N mineralization potential is high, N fertilizer inputs can be reduced without compromising turfgrass performance. The Solvita® Soil CO2-Burst and the Solvita® Labile Amino-Nitrogen soil tests were evaluated for their potential to predict turfgrass performance and for their potential to predict the probability of turfgrass responding to additional N fertilization.

Before graduate school, David worked on a variety of farms, nurseries, and landscaping crews.