Cranberries are the largest agricultural food product in the state, with an annual crop value of $99.8 million. The industry provides 6,900 jobs and total economic benefit of more than $1.4 billion, according to the Cape Cod Cranberry Growers Association’s 2015 report.With the climate expected to warm in the decades to come, farmers can expect more insects and more fungal and other plant diseases. The cranberry grows best in temperate climes, DeMoranville said, and long, hot sunny days produce smaller berries that don’t get top prices.
Studies have shown that Cape Cod cranberry growers can expect conditions similar to those now experienced in New Jersey, at the southernmost range of the plant. That area has the highest level of rotted berries, Wick said. The winters also have to be cold enough for ice to form over the flooded bogs so farmers can apply sand that seeps down in the spring and forms a new bed for the plants.
“Eventually, if it got hot enough, you would come to a time when you couldn’t grow cranberries, what may happen is that the entire industry just shifts north,” DeMoranville said.
In essence, that has already happened, as newcomer Quebec overtook Massachusetts in 2013 as the No. 2 cranberry growing region.