Certain tree species, such as maple, birch, dogwood and elms, have an exceptionally heavy sap flow in the early spring. When pruned or wounded, these trees will “bleed” quite noticeably. Under normal ...

“More mud, more sap.” During long cold spells, the tree tapping process gets delayed. When temperatures drop below freezing overnight, the flow of the sap slows significantly or stops completely.

Maple Tree sap tapping has been difficult in 2023 for a lot of farmers. Due to inconsistent weather and snow maple sap tapping may be over.

With climate change, daily temperatures are on the rise, which affects sap flow and sugar content. By 2100, the maple syrup season in eastern North America may be one month earlier than it was ...

New Brunswick's maple syrup producers are cautiously optimistic for the season as the sap begins to run in southern areas. Louise Poitras, the executive director of the New Brunswick Maple Syrup ...

A ground-breaking sap flow metre, made by a company in northern NSW and used by scientists around the world, is harnessing trees as environmental indicators. Dr Peter Cull of TCT International ...