Oklahoma is under attack from armyworms. Even in heat-stressed, dormant lawns that don't get irrigation through the triple-digit temps of summer, you can spot armyworms... Now, if you don't want to mess with it, armyworms don't stick around forever, but the damage they inflict is stunning. On that, the "gentle" way of treating them is the best way to diagnose if that heat spot is really armyworms. Unique Things to Do in Oklahoma City There is no shortage of things to do in OKC.