Sap is the universal name for the fluid that plants use to transport carbohydrates and sugars through their vascular system. It is what we tap in the spring to make maple syrup.

When you see beds of amber or whitish colored sap being released through the bark, there is probably a problem. A few trees such as the cherries seem to release sap naturally. However, in most cases, oozing sap is the sign of a problem.

The cause of oozing sap may be a natural process or it may be do to mechanical damage, insect (borers) feeding, feeding by woodpeckers or sapsuckers or as the result of a canker disease.

Note: We have provided some general information and observations on this topic aimed at the home gardener. Before you take any serious action in your landscape, check with your state's land grant university's Cooperative Extension Service for the most current, appropriate, localized recommendations.

 

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