Sod webworm is a term describing several species of lawn-infesting caterpillars that live in the thatch level of the lawn and feed on the undersides of leaves and stems just above the crown. Turf grasses most susceptible to larval damage include fine fescue, Kentucky bluegrass, bentgrass, and buffalo grass. If you see scattered patches of wilted, yellow or brown grass contact Turf King, we'll take care of your sod webworm problem in Muskoka or Orillia!