The cardboard traps contain a pheromone to lure in male gypsy moths. Once inside the trap, the moths become stuck to the sticky interior surface. Depending on trapping results, the final step may ...

The cardboard traps contain a pheromone to lure in male gypsy moths. Once inside the trap, the moths become stuck to the sticky interior surface. Depending on trapping results, the final step may ...

Spongy moths (Lymantria dispar dispar, formerly known as the gypsy moth) are a major threat to Pennsylvania’s forests, having killed millions of oak and other tree species, officials said.