We cut back our pine trees and sap dripped everywhere. It is now dry and staining the deck. Any suggestions? A: Sap from trees — pines or others — is a real problem on decks, especially after ...

Carbonated wood – what’ll they think of next? A couple of decades ago, science was at a loss to explain how sap flow worked. We observed that below-freezing nights and warm days produced a run.

SCHEFFER and Lindgren 1 present a summary of approximately ten years of field and laboratory work on sap-stains of wood. They state that market demands for wood products are becoming more exacting ...