Gypsy moth populations are high: What conifer growers need to know
Gypsy moth populations are high: What conifer growers need to know April 16, 2021 There were extremely high populations of gypsy moth during 2020 and we anticipate elevated populations this year. Scout and treat spruce, fir and Douglas fir for gypsy moths. Photo 1. Gypsy moth aerial survey performed during 2020 showed up to one million acres were defoliated in 2020. Photo from Michigan Forest Health Highlights 2020 Report. Gypsy moth populations are expected to be very high again this year. According to the Department of Natural Resource’s report, “Michigan Forest Health Highlights 2020,â...