Extension Entomology Articles
Scout for Fall Armyworms this Fall
Fall armyworms began arriving in Kansas in mid-June. After a brief lull in activity, pheromone trap counts have been increasing, particularly in the western...
Webworms active in pigweed and alfalfa in western Kansas
Heavy webworm infestations in pigweed have been observed in western Kansas in the last two weeks and more recently in alfalfa fields around the region.
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Fall Armyworms and Army Cutworms Active
Oct. 2, 2026Another reminder about fall armyworm since numbers continue to increase across the state this month. And another potential pest has started arriving in the...
Scout for Fall Armyworms this Fall
Sept. 3, 2026Fall armyworms began arriving in Kansas in mid-June. After a brief lull in activity, pheromone trap counts have been increasing, particularly in the western...
Webworms active in pigweed and alfalfa in western Kansas
Aug. 5, 2026Heavy webworm infestations in pigweed have been observed in western Kansas in the last two weeks and more recently in alfalfa fields around the region.
Fall Armyworm is Now Active in Kansas
June 24, 2026Fall Armyworm, Spodoptera frugiperda , can damage several important Kansas crops as well as pasture, turf and home landscaping. This insect does not overwinter...
Weekly fall armyworm counts available online for the 2026 season
May 27, 2026Fall armyworms were a challenge for Kansas producers in 2025 and efforts to track this pest’s arrival and distribution across the state in 2026 will be ongoing....
Alfalfa Weevil is Now Active in Kansas
March 5, 2026Like last year, degree day accumulations for Kansas alfalfa weevils are well ahead of normal for the entire state (Table 1). As air temperatures continue to...
