Armyworm moths are a uniform pale brownish-gray with approximately 1-1/2 inch wing span. A single, small

Armyworm moth

but prominent white dot is present in the center of each fore wing. 50 to 150 spherical gray eggs. Egg masses will usually hatch in 3 to 5 days.Adult armyworm moths may fly as early as March in Kentucky. The larval stage will occure mid-May through June. Infestations usually develop in small grain or grass fields. Cool, wet springs favor armyworm development.

For additional information see IPM-2 Kentucky Integrated Crop Management Manual for Corn, EntFact-109 Armyworms in Corn, Armyworms in Small Grains and True Armyworm Scout Info Sheet.

To view the data that includes temperature and accumulated degree days you will need Microsoft Excel®.

University of Kentucky Research Center, Princeton,KY

1993          1994          1995          1996          1997          1998

1999          2000          2001          2002          2003          2004

2005          2006          2007          2008          2009          2010

2011          2012          2013          2014          2015          2016


University of Kentucky Spindletop Farm, Lexington, KY

2007          2008          2009          2010          2011          2012

2013          2014          2015          2016          2017

Insect trap data are provided for educational purposes only. Weather data provided by the University of Kentucky Agricultural Weather Center and Kentucky Mesonet. Weather data if used for legal purposes must be certified by NCDC, National Climate Data Center.