Citrus trees are very susceptible to cold weather, and extended exposure to
subfreezing temperatures can destroy the crop. In order to protect the trees
from occasional cold fronts with subfreezing temperatures, tree growers in
Florida usually install water sprinklers on the trees. When the temperature
drops below a certain level, the sprinklers spray water on the trees and their
fruits to protect them against the damage the subfreezing temperatures can
cause. Explain the basic mechanism behind this protection measure, and write
an essay on how the system works in practice.
