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Growth Rates of Sugar Maple Trees Tapped for Maple Syrup Production Using High-Yield Sap Collection Practices

The amount of sap that can be extracted annually from trees for maple syrup production using current equipment and practices is more than double the typical yields achievable when current maple industry tapping guidelines were developed. The growth rates of trees tapped with these Òhigh-yieldÓ practices at 18 sites in Vermont were measured and evaluated to determine whether they were sufficient for the replenishment of conductive wood to remain at sustainable levels when current tapping guidelines are followed.

Health of Eastern North American Sugar Maple Forests and Factors Affecting Decline

Sugar maple (Acer saccharum) is a keystone species in the forests of the northeastern and midwestern United States and eastern Canada. Its sustained health is an important issue in both managed and unmanaged forests. While sugar maple generally is healthy throughout its range, decline disease of sugar maple has occurred sporadically during the pastfour decades; thus, it is important to understand the abiotic and biotic factors contributing to sugar maple health.

Height-Diameter Relations of Maple Street Trees

Height and diameter measurements were taken for silver, sugar and Norway maple street trees in Rochester and Syracuse, New York.

How to Identify and Control the Sugar Maple Borer

The sugar maple borer, Glycobius speciosus (Say), a long-horned wood boring beetle, is a common pest of sugar maple (the only known host) throughout the range of the tree. Although borer-caused mortality is rare, infestations lead to value loss through lumber defect caused by larval galleries, discoloration, decay, and twisted grain.

Image-analyzing computer in plant science: more and larger vascular rays in sugar maples of high sap and sugar yield

The total area and number of xylem rays and vessels from tangential and cross sections of twigs of 12 sugar maples (Acer saccharum Marsh.) were determined by the use of an image-analyzing computer. A nested analysis of variance indicated that xylem rays of trees of high sap and sugar yield are more numerous and larger than the rays of other sugar maples. The total area and number of xylem vessels were about the same in all 12 trees.

Impact Of The 1998 Ice Storm On The Eastern Ontario Maple Syrup Industry: A Case Study Of Natural Disaster Policy In Canada

Under Canada’s Disaster Financial Assistance Arrangements (DFAA), the federal government can provide provinces with funds for emergency response and recovery in the event of a natural disaster. This assistance has historically been provided on an ad hoc basis. In recent years, the amount of DFAA assistance has significantly increased without any auditing to determine how effective and efficient these expenditures are in offsetting economic losses due to natural disasters. The goal of this paper is to examine the implications of natural disaster compensation and assistance programs for economic efficiency. A framework is developed to determine if government assistance expenditures have offset economic losses to a specific industry using a case study of the 1998 ice storm and the eastern Ontario maple syrup industry. Projections of damage recovery are used to measure the economic impact of the storm, and a comparison is then drawn between the change in producers’ welfare and government assistance. The implications of the findings for the case study and for future natural disaster assistance programs in Canada are discussed.

Indicator Species, Fact Sheets: Red Maple, Acer rubrum

Red Maple is a deciduous tree that can be 50 to 60 feet tall at maturity. It is wide ranging, and native throughout the eastern half of the United States. Red maple can be used for syrup production. However, it tends to bud and flower very early in the season, which has a negative effect on the sap, making the syrup season for the red maple very short.

Indicator Species, Fact Sheets: Sugar Maple, Acer saccharum

Sugar maple is a deciduous tree that can grow to a height of 50 to 130 feet. It is native to the US, and found throughout the eastern states. Sugar maple is the primary source for maple sugar and syrup. Trees are tapped for syrup in late winter/early spring throughout New England. Sugar maple is also a valuable hardwood for a variety of products from flooring to cabinets.

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.

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.