C.O.R.N. Newsletter

  1. Corn earworm
    Author(s): Kelley Tilmon , Author(s): Pierce Paul , Author(s): Andy Michel

    There have been recent reports of high corn earworm populations in certain grain corn fields.  Corn earworm is a pest with many hosts including corn, tomatoes and certain legumes.  In Ohio it is typically considered a pest of sweet corn rather than field corn, but this past week substantial populations have been found in certain field corn sites.

    Issue: 2019-27
  2. Author(s): Amy Raudenbush , Author(s): Kimberley Gault , Author(s): Mark Badertscher , Author(s): Lee Beers, CCA , Author(s): Amanda Bennett , Author(s): Bruce Clevenger, CCA , Author(s): Sam Custer , Author(s): Tom Dehaas , Author(s): Allen Gahler , Author(s): Jason Hartschuh, CCA , Author(s): Andrew Holden , Author(s): Stephanie Karhoff , Author(s): Rory Lewandowski, CCA , Author(s): Cecelia Lokai-Minnich , Author(s): David Marrison , Author(s): KJ Martin , Author(s): Sarah Noggle , Author(s): Les Ober, CCA , Author(s): Eric Richer, CCA , Author(s): Garth Ruff , Author(s): Clint Schroeder , Author(s): Jeff Stachler , Author(s): Mike Sunderman , Author(s): Alan Sundermeier, CCA , Author(s): Curtis Young, CCA , Author(s): Chris Zoller , Author(s): Andy Michel , Author(s): Kelley Tilmon

    Results from week five of The Ohio State University Western bean cutworm (WBC) monitoring network has resulted in an overall increase of moths captured across Ohio. Meaning, last week (July 22 – 28) marks our peak week in adult WBC flight to date. A total of 26 counties monitored 79 traps across Ohio and resulted in a 2842 WBC adults (up from 2001 total last week) and a statewide average of 36.0 moths/trap (up from 25.3 average last week) (Figure 1).

    Issue: 2019-24
  3. Author(s): Amy Raudenbush , Author(s): Kimberley Gault , Author(s): Mark Badertscher , Author(s): Bruce Clevenger, CCA , Author(s): Sam Custer , Author(s): Allen Gahler , Author(s): Jason Hartschuh, CCA , Author(s): Andrew Holden , Author(s): Stephanie Karhoff , Author(s): Ed Lentz, CCA , Author(s): KJ Martin , Author(s): Cecelia Lokai-Minnich , Author(s): Les Ober, CCA , Author(s): Eric Richer, CCA , Author(s): Garth Ruff , Author(s): Mike Sunderman , Author(s): Jeff Stachler , Author(s): Alan Sundermeier, CCA , Author(s): Curtis Young, CCA , Author(s): Chris Zoller , Author(s): Andy Michel , Author(s): Kelley Tilmon

    We are in week two of The Ohio State University Western bean cutworm (WBC) monitoring network. Last week’s trap count included WBC adults captured from July 1 – July 6. Overall, 22 counties monitored 64 traps across Ohio. Trap counts increased slightly, resulting in a total of 18 WBC adults (0.3 average moths per trap) (Figure 1). None of the counties reported capturing more than 1 moth / day over the 7 day monitoring period; therefore, all counties currently remain below the recommended levels that indicate scouting for egg masses should begin. 

    Issue: 2019-21
  4. Author(s): Amy Raudenbush , Author(s): Kimberley Gault , Author(s): Mark Badertscher , Author(s): Bruce Clevenger, CCA , Author(s): Sam Custer , Author(s): Tom Dehaas , Author(s): Allen Gahler , Author(s): Mike Gastier, CCA , Author(s): Jason Hartschuh, CCA , Author(s): Andrew Holden , Author(s): Stephanie Karhoff , Author(s): Rory Lewandowski, CCA , Author(s): KJ Martin , Author(s): Cecelia Lokai-Minnich , Author(s): David Marrison , Author(s): Les Ober, CCA , Author(s): Eric Richer, CCA , Author(s): Garth Ruff , Author(s): Jeff Stachler , Author(s): Mike Sunderman , Author(s): Alan Sundermeier, CCA , Author(s): Curtis Young, CCA , Author(s): Andy Michel , Author(s): Kelley Tilmon

    The Ohio State University Western bean cutworm (WBC) network has officially started monitoring traps as of last week. Green bucket traps containing a lure were placed along the edges of corn fields during the week of June 17th. The first trap count includes WBC adults captured during the week of June 24th. Overall, 22 counties monitored 62 traps across Ohio; which resulted in 12 WBC adults captured (0.2 average moths per trap) (Figure 1).

    Issue: 2019:20
  5. The Western Agricultural Research Station Agronomy Field Day will be held July 17th. The station is mostly planted but everything went in on the edge – as you saw it on your farm too. Hear our researchers thoughts and recommendations on how to manage this interesting season.

    A couple of items we will walk through are:

    Issue: 2019:20
  6. Author(s): Amy Raudenbush , Author(s): John Schoenhals, CCA , Author(s): Mark Badertscher , Author(s): Lee Beers, CCA , Author(s): Amanda Bennett , Author(s): JD Bethel , Author(s): Bruce Clevenger, CCA , Author(s): Sam Custer , Author(s): Tom Dehaas , Author(s): Allen Gahler , Author(s): Mike Gastier, CCA , Author(s): Jason Hartschuh, CCA , Author(s): Ed Lentz, CCA , Author(s): Rory Lewandowski, CCA , Author(s): Cecilia Lokai-Minnich , Author(s): David Marrison , Author(s): Sarah Noggle , Author(s): Les Ober, CCA , Author(s): Eric Richer, CCA , Author(s): Garth Ruff , Author(s): Jeff Stachler , Author(s): Alan Sundermeier, CCA , Author(s): Curtis Young, CCA , Author(s): Chris Zoller , Author(s): Andy Michel , Author(s): Kelley Tilmon , Author(s): Megan Zerrer , Author(s): Mike Sunderman

    Another successful year of Western bean cutworm (WBC) trapping has come to an end! We want to thank all of the extension educators for their time monitoring the traps, as well as the landowners for allowing us to place traps on their property. Overall, 26 counties in Ohio monitored WBC traps from the end of June through August. A total of 80 traps were monitored weekly with a grand total of 5,308 WBC trapped and an average of 7.9 moths per trap over the duration of the monitoring period (this was a decrease from 15,117 moths trapped with an AVG of 21 moths per trap in 2017).

    Issue: 2018-29
  7. John Schoenhals, Mark Badertscher, Lee Beers, Bruce Clevenger, Sam Custer, Tom Dehass, Allen Gahler, Jason Hartschuh, Ed Lentz, Cecilia Lokai-Minnich, David Marrison, Sarah Noggle, Les Ober, Eric Richer, Garth Ruff, Jeff Stachler, Alan Sundermeier, Curtis Young, Megan Zerrer, Chris Zoller, Andy Michel, Kelley Tilmon

    Issue: 2018-28
  8. John Schoenhals, Mark Badertscher, Sam Custer, Tom Dehass, Allen Gahler, Mike Gastier, Ed Lentz, Rory Lewandowski, Cecilia Lokai-Minnich, David Marrison, Sarah Noggle, Les Ober, Eric Richer, Garth Ruff, Jeff Stachler, Alan Sundermeier, Curtis Young, Megan Zerrer, Andy Michel, Kelley Tilmon

    Issue: 2018-27
  9. Multiple Japanese Beetles
    Author(s): Kelley Tilmon , Author(s): Andy Michel

    We have been hearing reports of Japanese beetles in corn and soybean.  These beetles are large with a shiny copper and green color.  Foliage feeding in corn is almost never economic, though economic damage from silk clipping is possible (though rare).  Consider a rescue treatment when  silks are clipped to less than ½ inch and, fewer than 50% of the plants have been pollinated, and the beetles are still numerous and feeding in the field. 

    Issue: 2018-24
  10. Western bean cutworm adult
    Author(s): Amy Raudenbush , Author(s): John Schoenhals, CCA , Author(s): Mark Badertscher , Author(s): Amanda Bennett , Author(s): Bruce Clevenger, CCA , Author(s): Sam Custer , Author(s): Tom Dehaas , Author(s): Allen Gahler , Author(s): Jason Hartschuh, CCA , Author(s): Ed Lentz, CCA , Author(s): Rory Lewandowski, CCA , Author(s): Cecilia Lokai-Minnich , Author(s): David Marrison , Author(s): Les Ober, CCA , Author(s): Eric Richer, CCA , Author(s): Garth Ruff , Author(s): Jeff Stachler , Author(s): Curtis Young, CCA , Author(s): Chris Zoller , Author(s): Andy Michel , Author(s): Kelley Tilmon

    Western bean cutworm (WBC) adult moth catches are beginning to decrease for the majority of Ohio counties with an exception in Northeast Ohio. For week ending July 28, 18 counties monitored 63 traps (Figure 1). Overall, there was an average of 15 moths per trap (945 total captured). This is a decrease from an average of 25.1 moths/trap (1985 total captured) the previous week. Despite the general trend of adult moth catches decreasing, numbers suggest Northern Ohio counties should continue to scout for egg masses. 

    Issue: 2018-24

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