What are the big wasps digging up my Ronkonkoma lawn?
Large solitary wasps digging quarter-inch to half-inch holes in bare sandy patches of a Ronkonkoma lawn every July are almost always cicada killers. They are non-aggressive to people but cosmetically ruin turf. Bobby Bugs cicada killer treatment is quoted in writing, for free, before any work begins, including active burrow treatment and turf recovery guidance.