Skip to main content
U.S. flag

An official website of the United States government

Paraformaldehyde pellet not necessary in vacuum-pumped maple sap system

Informally Refereed

Abstract

In a study of sugar maple sap collection through a vacuum-pumped plastic tubing system, yields were compared between tapholes in which paraformaldehyde pellets were used and tapholes without pellets, Use of the pellets did not increase yield.

Citation

Smith, H. Clay; Gibbs, Carter B. 1970. Paraformaldehyde pellet not necessary in vacuum-pumped maple sap system. Research Note NE-118. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
https://www.fs.usda.gov/research/treesearch/19799