Fall Armyworm
leaves, creating a characteristic windowing effect. This damage and moist sawdust-like frass near the funnel and upper leaves can be an easily spotted [...] armyworm moths generally disperse in a radius of about 500 km (300 miles) before oviposition, which is sufficient for them to move from seasonally dry habitats [...] it possible for fall armyworms to spread over large areas rapidly. Adults fly by night, and are attracted to lights, especially those with a strong ultra-violet