A poplar tree in the Dutch university town of Wageningen has been hooked up to Twitter so it can send out updates about its sap flows and how fast it is growing. The 30-year-old tree, in the grounds ...

“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.

The whole-tree sap flow density (Jm in mol m −2 SW s −1, where m denotes the ordinal number of the tree as in Table 1) was calculated from J with the locations of probes and the respective sapwood ...