C.O.R.N. Newsletter

  1. cereal leaf beetle
    Author(s): Andy Michel , Author(s): Kelley Tilmon

    Around this time in May, we may see increases of cereal leaf beetle in wheat and other small grains.  In fact, a few adults have already been spotted in a few fields. Adults are not the most damaging stage, but they will lay eggs which will hatch into the hungrier and more damaging larvae in the next few weeks. Look for adult beetles which are metallic blue and orange. 

    Issue: 2020-13
  2. Cereal Leaf Beetle
    Author(s): Andy Michel , Author(s): Kelley Tilmon

    Populations of cereal leaf beetle are increasing in Ohio.  Although adults can feed on wheat, the larvae do most of the damage.  These larvae are small, gray and moist, and are covered with a substance resembling bird droppings.  Damaged wheat appears “frosted” as the cereal leaf beetle feeds and strips away leaf material.  Wheat fields are best inspected using a sweep net or by walking the field.  Infestations exceeding 2 larvae per stem may require an insecticide treatment to prevent further loss. 

    Issue: 2019:16
  3. armyworm
    Author(s): Kelley Tilmon , Author(s): Andy Michel

    In April we reported that University of Kentucky true armyworm moth counts were higher than average.  These moths migrate northward, so if our southern neighbor reported high catches, many moths also likely made it into Ohio. After migrating and establishing, armyworms begin to lay eggs in grasses, including wheat fields and cover crop fields (that may have corn planted soon). Larvae feed for about 3 weeks before pupating. This article discusses armyworm management in corn and small grains.

    Issue: 2017-13
  4. cereal leaf beetle larva
    Author(s): Andy Michel , Author(s): Kelley Tilmon

    Adult cereal leaf beetles have been spotted in a few areas across OH.  Adults do not normally cause yield loss in wheat, but, if present in high numbers, they could lead to heavy larval infestations over the next few weeks.  Adult cereal leaf beetles are shiny, metallic blue and orange and are best found using a sweep net or by walking the field.  Cereal leaf beetle larvae are small, gray and moist, resembling bird droppings, and are easily found on wheat leaves.  Foliar damage on wheat occurs when larvae feed and strip the leaves, causing a “frosted appearance.”  Economic threshold of cere

    Issue: 2017-11
  5. Author(s): Andy Michel , Author(s): Kelley Tilmon

    Last week, the University of Kentucky reported high true armyworm moth counts (see: https://kentuckypestnews.wordpress.com/2017/03/28/beware-of-true-armyworms-mild-winter-provides-conditions-for-potential-injuries-in-small-grains/). The mild winter likely contributed to the higher and earlier catches this year.

    Issue: 2017-07
  6. Author(s): Bruce Clevenger, CCA , Author(s): Curtis Young, CCA

    There are many reasons why on-farm grain storage is used by producers across Ohio. It may be part of the marketing strategy, feed storage for farm use, and/or income and tax management to complete grain sales before and/or after the new calendar year. Regardless of the reason, an essential requirement is to maintain quality grain during the storage period to preserve the grain for end usage and economic value. 2016 presented some grain quality challenges, especially for corn so it will be important to manage the grain during the next several months.

    Issue: 2016-38
  7. cereal leaf beetle feeding in wheat
    Author(s): Andy Michel , Author(s): Kelley Tilmon

    With much of the state still yet to plant, growers should be keep a few insect pests in mind as they get in into fields this week:

    Issue: 2016-12
  8. There are three excellent field day opportunities being planned for small grain producers across the state. The three days cover a variety of production issues, nutrient management practices, and small grain uses. Locations are in Pickaway, Wayne and Wood Counties. Be sure to check out the location closest to you! For detailed information visit: https://agcrops.osu.edu/events

    June 1, Pickaway County, On-Farm Wheat Field Day, 19076 Florence Chapel Pike, Circleville at 9 am.

    Issue: 2016-11
  9. Hessian Fly-free Date by County
    Author(s): Andy Michel , Author(s): Pierce Paul

    A good rule of thumb for planting wheat is to wait after the Hessian fly-free date.  These dates are predictions on when most Hessian fly adults would no longer be alive and lay eggs in wheat fields.  If planted too early, the eggs can hatch and stunt or kill the wheat plants. Keep in mind that this date is also good for cover crops as well, as mentioned by the Penn St.

    Issue: 2015-29
  10. Cereal Leaf Beetle on Wheat
    Author(s): Pierce Paul , Author(s): Andy Michel

    We are now well into the late-heading and early-flowering growth stages, and understandably, folks are concerned about head scab and vomitoxin. Questions keep coming in about applying fungicides for scab control, particularly when and whether a fungicide is needed. The forecasting system (http://www.wheatscab.psu.edu/) shows that if your wheat flowered over the holiday weekend (May 22- May 25) or is flowering today (May 26), and your variety is moderately susceptible or moderately resistant, the risk for scab is low.

    Issue: 2015-14