C.O.R.N. Newsletter

  1. 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
  2. Author(s): Kelley Tilmon , Author(s): Andy Michel

    As farmers progress with soybean harvest we encourage you to take a quick look at your grain quality, especially at field edges.  We have been receiving reports of the deformed and discolored beans typical of stink bug damage.  If your beans show signs of stink bug damage (or even if they don’t!) consider incorporating stink bug scouting into your managem

    Issue: 2018-33
  3. Author(s): Kelley Tilmon , Author(s): Andy Michel

    Although the growing season is winding down, we are still receiving some reports of insect activity and damage in soybeans.  At this point, the risk is mainly to late-planted or double-cropped beans that are still maturing and still green when other fields are yellowing.  Late-season soybean aphids, which feed on sap, do not cause yield drag after seed fill is complete.  Stink bugs, grasshoppers, Mexican bean beetles, and bean leaf beetles can feed on pods later in the season.  

    Issue: 2018-31
  4. Author(s): Kelley Tilmon , Author(s): Andy Michel , Author(s): Clifton Martin, CCA

    Mexican Bean Beetle adult (left) and larva (right).  Photo by R. Hammond.

    Issue: 2018-28
  5. Author(s): Kelley Tilmon , Author(s): Andy Michel

    We have heard a few reports of either bean leaf beetles or grasshoppers increasing in soybeans.  As we start to approach the end of the growing season the larger concern with these insects is the potential for pod feeding, rather than foliage feeding.  Pod feeding directly impacts grain quality.  Crop stage is also an important consideration.  Late-planted fields or double-cropped soybeans which are still green when other fields are drying down can be “trap crops,” attracting both bean leaf beetles or grasshoppers leaving the other fields.  Such fields bear close watching. 

    Issue: 2018-27
  6. 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
  7. Author(s): Amy Raudenbush , Author(s): Andy Michel , Author(s): Kelley Tilmon

    Additional authors: Marcus McCartney

    Issue: 2018-12
  8. Author(s): Anne Dorrance , Author(s): Terry Niblack

    Over the course of the next year, you will hear much about the pest, soybean cyst nematode.  No stranger to Ohio, since the 1980’s, farmers in Ohio have been monitoring this pest.  The first surveys, early 1990’s, SCN occurred sporadically in the state but some populations were very high.  In a survey of fields in southern Ohio, high populations of SCN were found in fields where yields were consistently low.  One of the more recent check-off funded projects, identified that more fields than 20 years ago has SCN.  Among the 143 fields sampled at a depth of 6 to 8 inches in 51 counties in Ohi

    Issue: 2018-07
  9. Author(s): Andy Michel , Author(s): Kelley Tilmon

    By now, most of us are familiar with the brown marmorated stink bug, the new invasive stink bug that feeds on soybean, corn, fruits and vegetables.  As the cool weather returns over the next few weeks, we will see BMSB come into homes—and infestations can be large.  They will spend the winter as adults in homes, emerging once temperatures warm in the spring.

    Issue: 2017-32
  10. Bean leaf beetle variation
    Author(s): Kelley Tilmon , Author(s): Andy Michel


    Issue: 2017-27