Although no intense flights (nine or more moths caught over a two-day period) of black cutworm moths have been reported, captures of this species have been common in several Illinois counties and states, said a University of Illinois Extension entomologist.
Mike Gray said that 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.
He added that Kelly Estes, agricultural pest survey coordinator with the Illinois Natural History Survey, has established a network of trapping cooperators across Illinois. Over the past two weeks, captures have been reported in the following Illinois 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,” Gray said. “Today (April 21) strong winds from the south are undoubtedly bringing many black cutworm moths into Illinois, and weedy fields will be prime targets for egg laying by this species.”
For more complete information about the biology, life cycle, and management of black cutworms and armyworms, fact sheets are available from the U of I Department of Crop Sciences.
Gray provided 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 the Bulletin,” Gray added.
Source: Michael Gray and Stephanie Henry, University of Illinois
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