PORTLAND PRESS HERALD • January 4, 2025
Proliferation of a fungus caused browntail moth populations to crater in 2024, which likely means that Maine residents will get relief from the forest pest this spring and summer, scientists said. The state tracks defoliation caused by the caterpillars, and saw it plummet from 46,000 acres in 2023 to 2,000 acres in 2024. UMaine is researching whether a pheromone can be used to disrupt the mating patterns of browntail moths, another way to control the population. Browntail moth populations typically go through a boom-bust cycle that lasts 10-12 years, and 2024 was considered the ninth year of the current outbreak. So in year 10, 2025, it appears likely that Maine will enter a “bust” cycle for the browntail moth.