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The black cutworm risk map (above) has been updated to indicate high risk areas where larval development is likely to have reached the point where damage may be visible. Golf Course Superintendents in the entire southern half of the state should be scouting for this insect and paying attention to suspect areas on closely mowed turf.
Superintendents and lawn care professionals alike should keep an eye open for armyworms. They may be small right now, but as they develop, larger larvae can make a lawn disappear practically overnight. The most susceptible turfgrasses tend to be located adjacent to weedy or unmanaged areas, fence rows, the borders of agricultural fields and ditches where tall grasses provide excellent habitat for the adult armyworms to lay eggs. Check my previous tweet for insecticide recommendations appropriate for cutworms… the same chemistries will also be effective against armyworms.
Doug Richmond, Turf Entomologist