Armyworms Invade Lawns
Posted: July 30, 2012
Extension offices and lawn care companies across Pennsylvania have received numerous calls over the last few weeks about a plague of worms. These infrequent invaders are armyworms, which may be found in large numbers crawling across lawns, consuming the grass as they go.
So where did they come from? According to Penn State entomologist Dr. John Tooker, most people want to tie their outbreaks to unusual spring weather, but no one really knows why they become so abundant some years. This spring he has received calls from Erie to Chester County and everywhere in-between about armyworm infestations in grass pastures, corn and small grain fields. They are most likely to show up in lawns that are near those fields.