 Just manage it by being able to access them to keep the weeds down. An eastern Iowa farmer says pest pressure has been minimal in his crops despite the wetter-than-expected growing season. Lance Lillibridge raises corn, alfalfa, and red Angus cattle in Benton County. We've only seen one rootworm beetle, so I think that's great. We've seen a few ears that had the silks clipped on them, but not very many. So I'm not sure if that was rootworm beetles or if it may be Japanese beetles or something that was along the edges of the field.