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1:37

Shade Tolerance 1

By: uvmext

All green plants, which includes trees, need sunlight to produce energy for survival. Some trees can satisfy their basic needs with less light than others. Sugar and red maples are two examples of such trees. They are both considered shade-toleran...

1:50

Vacuum and Sap Minerals

By: uvmext

A modern maple operation relies on a tubing system with vacuum to maximize sap production. The innovation of plastic tubing originally came as a labor-saving device and not to increase sap yield from individual trees. As the materials used to prod...

1:42

Vacuum and Wounding

By: uvmext

A modern maple operation relies on a tubing system with vacuum to maximize sap production. The innovation of plastic tubing originally came as a labor-saving device and not to increase sap yield from individual trees. As the materials used to prod...

0:53

What's In The Sap?

By: uvmext

Maple sap, what's in it? Maple sap is a dilute solution of mainly water (95-99%) and sugar (1-5%), along with trace amounts of other substances, including: organic acids, free amino acids, protein, minerals, and phenolic compounds. Sap coming dire...

2:00

Water Bars

By: uvmext

Access to a sugarbush is critical for installing and repairing sap collection equipment, tapping and managing crop trees and responding to the effects of natural disturbances. Quality access to the sugarbush relies and a road and trail system that...

0:47

Vacuum

By: uvmext

Sap flows out of trees due to the difference in pressure between the inside and outside of the tree. In the 1950s, maple researchers and producers found that adding vacuum pumps to tubing systems could increase this pressure differential and there...

2:08

Tapping

By: uvmext

Winter is almost over and spring is almost here; it's time to make maple syrup. Each season sugar makers have to drill a new hole if they want to collect sap. The reason for this has to do with how trees respond to wounds. When a hole is drilled i...

1:31

Sugarbush Management 2

By: uvmext

Late summer, while leaves are still green is a good time to assess the trees in your sugarbush. Weak or declining individuals will show areas of crown dieback. Trees with more than 75% dieback will likely not survive but are still competing for li...

1:14

Sugarbush Management 1

By: uvmext

Sugar makers rely on healthy, abundant maple trees to provide sap each spring. Taken together a group of maple trees managed for sap collection is called a sugarbush. Developing a healthy, productive sugarbush takes time and effort. Forests are hi...