09/01/2026
The Spongy Moth is an invasive caterpillar that can defoliate hundreds of tree species across the Eastern United States.
Populations are kept in check by a fungus (Entomophaga maimaiga), which serves as a biological control by killing adult caterpillars. However, extended dry spells prevent the fungus from growing, which subsequently allows spongy moth populations to balloon.
Learn more about the Spongy Moth: https://loom.ly/OxHkzJ0