Last year, drought conditions in certain areas of New Brunswick led to a decline in groundwater levels, raising concerns among maple harvesters about the potential impact on this year’s harvest. The combination of reduced rainfall and higher temperatures in 2025 resulted in the drying up of many wells and streams.
David Briggs, who owns Briggs Maples in Hillsborough, explained that the decrease in groundwater and sunlight has hampered photosynthesis in his maple trees, leading to a decrease in sap production. However, he noted that the heat can stimulate trees to produce more sugar, potentially resulting in sweeter sap this year. Nevertheless, the lack of rainfall may still lead to a reduction in overall sap production.
Briggs emphasized the complexity of factors influencing sap production, highlighting the challenge of predicting the outcome for the season. He mentioned that it is not possible to determine the sap yield of a tree by simple observation, expressing hope for future scientific advancements in this area.
In response to the dwindling water supply, residents in the region had to deepen their wells, with some experiencing complete dryness in 2025. Briggs speculated that a similar situation might be occurring at his maple farm, although verification is difficult.
He pointed out that sap flow is facilitated by the freeze-thaw cycle and that inconsistent temperatures, attributed to climate change, have disrupted this process. Briggs observed a trend of milder winters and occasional warm spells during winter, which he believes will impact sap flow and final yield.
The shifting seasons have also altered the timing of tapping maple trees, with harvesting now commencing as early as mid-February compared to the traditional start in March. Briggs advised being prepared in advance for the rising temperatures to optimize the tapping process.
Jane Scott, co-owner of Dumfries Maples near Nackawic, echoed similar concerns about reduced water levels in streams on her farm following an abnormally dry summer. She expressed apprehension about the potential repercussions on the upcoming maple season, acknowledging the uncertainty until the end of the season.
Having been in the maple harvesting business for over 25 years, Scott has noticed changes in the season patterns and remains hopeful that the drought’s impact on the crop will be minimal, although the concern lingers in her mind.
