Resource type: Practical Skills

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Sapstreak Disease Of Sugar Maple

Sapstreak is a fatal disease of sugar maple that usually enters the tree through basal trunk scars or root wounds. The disease most often affects large, wounded trees left after logging. The fungus causing sapstreak readily infects stumps or cut logs during the summer months. So, wounding sugar maples during this time will increase the potential for disease spread. In the Lake States, sapstreak has only been found in a few areas of Michigan and at one location in Wisconsin. Although few trees have been killed by sapstreak, it has the potential to become a serious disease in sugar maple stands.

Date:
January 1, 1980

Sugarhouse Design

A guide to designing and constructing an efficient sugarhouse.

Date:
January 1, 1980

A Silviciltural Guide for Developing a Sugarbush

A practical guide for the management of a sugarbush. Guidelines are established for the manipulation of stand density and stocking to promote the development of healthy vigorous trees with deep, wide crowns, the necessary attributes for highest possible yield of sugar-rich sap.

Date:
January 1, 1974

A Guide to Sugarbush Stocking

Sugarbush managers have long needed a guide for determining the stocking of their sugar maple stands. The question is: for desirable sugar maple sap production, how many trees per acre are needed? To provide information about stocking, the USDA Forest Service’s sugar maple sap production project at Burlington, Vermont, has made a regionwide study of the relationships between crown diameter and d.b.h. (diameter breast high) of open-grown sugar maple trees (Acer saccharum Marsh.). We found a strong relationship between crown diameter and d.b.h., and converted these data into stocking guides for various stand-size classes. The stocking guide are based on the assumption that trees with full crowns produce the best sap yields.

Date:
March 3, 1970