The tent caterpillar activity is quite evident in the Millbrook area this year, but at our summer home near Bon Echo Provincial Park, the damage done by Forest Tent Caterpillars is devastating. In many areas up to 80% of the canopy on elms and maples has been devoured.

Ralph & Elaine Cole, Millbrook

Forest Tent Caterpillar (separated “snowmen” down the back) – Wikimedia

Forest Tent Caterpillar defoliation of aspens – Government of Manitoba

Forest Tent Caterpillar defoliation (photo: State University of New York – Cortland)

Drew Monkman

I am a retired teacher, naturalist and writer with a love for all aspects of the natural world, especially as they relate to seasonal change.