Search Resources

Showing 291 – 300 of all 713 resources in the database

Influence of experimental snow removal on root and canopy physiology of sugar maple trees in a northern hardwood forest

Due to projected increases in winter air temperatures in the northeastern USA over the next 100 years, the snowpack is expected to decrease in depth and duration, thereby increasing soil exposure to freezing air temperatures. To evaluate the potential physiological responses of sugar maple (Acer saccharum Marsh.) to a reduced snowpack, we measured root injury, foliar cation and carbohydrate concentrations, woody shoot carbohydrate levels, and terminal woody shoot lengths of trees in a snow manipulation experiment in New Hampshire, USA. Snow was removed from treatment plots for the first 6 weeks of winter for two consecutive years, resulting in lower soil temperatures to a depth of 50 cm for both winters compared to reference plots with an undisturbed snowpack.

Publication:
Oecologia
Date:
July 3, 2012

Infused syrup

Jeremy Solon discusses infused maple syrup and the advances in value added maple products. Hurley WI maple program 2020.

Date:
March 4, 2020

Innovations in Maple Sap Collection Systems: Reducing Clogging in 3/16” Tubing

Natural vacuum created in3/16” tubing has been a boon for many maple producers in stands where sufficient grade allows it to function properly. The column of sap moving downhill in 3/16” tubing doesn’t readily allow air bubbles to pass, but rather pushes them out of the system, creating a vacuum (Wilmot 2014, Perkins and van den Berg 2018). Unfortunately, several years of use have demonstrated that 3/16” tubing systems can be prone to clogging by microbial masses (Wilmot 2018, Perkins and vanden Berg 2019), especially at fittings (Childs 2019) where the internal diameter is greatly reduced.

Publication:
Maple Syrup Digest
Date:
December 15, 2023

Innovations in Maple Sap Collection Systems: Spouts

Maple sap tubing collection systems have undergone continuous evolution since being introduced. Over the past several decades, spouts in particular have changed considerably, with a marked shift towards smaller (1/4”, 19/64”, or 5/16”) spouts, developed and introduced by CDL.

Publication:
Maple Syrup Digest
Date:
December 15, 2022

Invaders in the sugarbush

Invasive exotic plants are becoming more prevalent and can have a negative impact on sugarbushes. Maple producers need to know how to identify and eradicate invasives.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
May 1, 2009

Invasive Insects of Eastern North American Sugarbushes

Invasive pests have been identified as one of the major threats to biodiversity worldwide. Many bodies, including the United Nations, recognize invasive species for the long-term detrimental impacts that they could have on our ecosystems. The most cost- and effort-saving way of dealing with invasive species is to prevent their initial spread into an area. This guide provides a brief summary of invasive insect pests threatening maple-producing regions of eastern Canada and the United States.

Publication:
Maple Syrup Digest
Date:
December 1, 2022

Investigating Decreasing Growth Rates of Sugar Maple in the Adirondacks

Relatively little work has been conducted investigating trends and influences of the annual growth of sugar maple trees, utilizing the widths of tree rings to estimate growth rates for each year. Using this tree-ring approach, recent research suggests that growth rates have been decreasing in the Adirondack Mountains of New York State.

Publication:
Maple Syrup Digest
Date:
June 1, 2016