Posted on Apr 21, 2015 by Michael Gray

Black Cutworm Moth Captures Common in Several Midwestern States

Impressive flights of black cutworm and armyworm moths have been reported by Doug Johnson an Extension Entomologist at the University of Kentucky . Entomologists at Purdue University also have received reports that black cutworm moth captures are now common in many areas of Indiana. Kelly Estes, Agricultural Pest Survey Coordinator with the Illinois Natural History Survey, has established a network of trapping cooperators across Illinois. Although no intense flights (nine or more moths caught over a 2-day period) of black cutworm moths have been reported by these cooperators, captures of this species have been common the past two weeks in the following counties: Champaign, Fayette, Logan, Lee, Macon, Macoupin, and Madison. This distribution of captures suggests that black cutworm moth flights have likely taken place throughout Illinois and growers are encouraged to remain vigilant for early signs of leaf feeding when corn seedlings begin to emerge. Today (April 21) strong winds from the south are undoubtedly bringing many black cutworm moths into Illinois and fields like the one featured in the photograph below will be prime targets for egg laying by this species.

Champaign County field considered a prime target for black cutworm moth egg laying, April 21, 2015.

 

For more complete information about the biology, life cycle, and management of black cutworms and armyworms, fact sheets are available from the Department of Crop Sciences, UIUC. Provided below is a brief overview of some key life cycle and management facts concerning black cutworms.

As the season progresses, if you learn of significant black cutworm infestations, please let me know and I will share this information with the readers of this Bulletin.

Mike Gray, Extension Entomologist

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