Spotted lanternflies are back now in Pennsylvania, causing concern for local agriculture. Despite efforts to contain them, the invasive pests are spreading beyond quarantine zones, hitching rides on vehicles, and experts warn that they’re likely here to stay. Known for attacking grape vines and trees like maple and birch, they’ve begun hatching and will mature now through this fall, leaving eggs to hatch next spring. You are urged to destroy egg masses to curb their population growth.