While sap will run in the fall under the right conditions, to maximize production it is best to tap in the late winter/early spring depending on your location and the weather conditions (outlined above about the alternation cold (nighttime) and warm (daytime) temperatures).
As to why a couple of your trees are running and the others are not, temperature patterns in trees can vary considerably throughout a season and each one can react differently to the environmental changes happening around them. You can certainly try re-tapping them to see if the sap will start flowing. If the sap does not begin to flow out of your taps, try again in the spring.
You can also reach out to your local maple producers group to connect with others to see what kind of results they have seen and for any tips that are specific to your area.
Hi Dan,
While sap will run in the fall under the right conditions, to maximize production it is best to tap in the late winter/early spring depending on your location and the weather conditions (outlined above about the alternation cold (nighttime) and warm (daytime) temperatures).
As to why a couple of your trees are running and the others are not, temperature patterns in trees can vary considerably throughout a season and each one can react differently to the environmental changes happening around them. You can certainly try re-tapping them to see if the sap will start flowing. If the sap does not begin to flow out of your taps, try again in the spring.
You can also reach out to your local maple producers group to connect with others to see what kind of results they have seen and for any tips that are specific to your area.