Many moths are the expected dull, flat tan, brown and gray. But Pennsylvania is home to some that are brightly colored and patterned. Here are 17 beauties. Wingspan: 2.75-4.25 inches. Host plants ...

Gypsy moth caterpillar excrement -- and bits of chewed ... Other preferred hosts can include poplar, birch, witch hazel and alder. Jack Lepiarz: And can they ultimately kill a tree by ...