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Effects of Tapping Depth on Sap Volume, Sap Sugar Content, and Syrup Yield Under High Vacuum

Tapping depth strongly influences both sap yield and wounding. Numerous studies have focused on the amount of sap produced with ifferent depths, the most extensive work conducted by Morrow (1963), who found a tendency for increasing sap yields with increasing taphole depth. However, this work was conducted on gravity with 7/16” tapholes, so is less informative to most producers using 5/16” spouts and vacuum.

Forest Connect Videos

Videos from the Cornell University “Forrest Connect” program.

Forest Pests of North America

The purpose of this website is to provide images and information of insects, diseases, weeds, and abiotic factors that cause damage to urban, managed, and natural forests. This site aggregates pictures, publications, and tools from many sources and packages the resources in an easy, searchable format. This site is intended to be used by homeowners, land managers, volunteers, urban foresters, county agents, outreach educators, and anyone else interested in identifying and managing their trees and forests.

Homemade Small Reverse Osmosis Machines

Small reverse osmosis machines can be built from consumer parts and can help small producers cut down on boiling time and energy use. This article offers tips on building such devices.