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  1. This Month in History: Western Bean Cutworm

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-23/month-history-western-bean-cutworm

    Compounding the problem, Western bean cutworm has been shown to be resistant to Cry1F, the Bt most commonly ... used in caterpillar-resistant corn hybrids.  The Western bean cutworm moth peak has likely passed in ... inform problems that affect us today.  Western bean cutworm is mainly a pest of corn in Ohio.  The adult ...

  2. Lep Monitoring Network Update #16 – Western Bean Cutworm Numbers Decline Across Ohio

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-25/lep-monitoring-network-update-16-%E2%80%93-western-bean-cutworm-numbers

    across the state have been low this season. For more information, read below.   Western Bean Cutworm This ... https://youtu.be/qGjpwtfkObM?si=CFPzX1rlqt6jzyJw Western Bean Cutworm Moth Map Week 9 July 27 th – August 2 nd, 2026     Figure 2. Average Western ... monitored over last week.  Corn earworm will continue to be monitored for a few more weeks – but numbers ...

  3. Lep Monitoring Network Update #14 – Western Bean Cutworm Numbers on the Rise

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-23/lep-monitoring-network-update-14-%E2%80%93-western-bean-cutworm-numbers

    https://youtu.be/qGjpwtfkObM?si=CFPzX1rlqt6jzyJw Western Bean Cutworm Moth Map Week 7 July 13 th – July 19 th, 2026   Corn Earworm This week we ... increase; they should peak around the end of July. For more information, read below.   Western Bean Cutworm ... our scouting threshold of an average of 7.0 moths per week. These include Fulton (12.0), Henry (8.0 ...

  4. Lep Monitoring Network Update #18 – Fall Armyworm Monitoring

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-27/lep-monitoring-network-update-18-%E2%80%93-fall-armyworm-monitoring

    of moth activity in the north-western part of the state. Out of the 15 counties, 8 reported zero FAW. ... threshold, it is worthwhile to scout when a county has an average of 7.0 moths or higher. Fall Armyworm Moth ... followed by the standard number which indicates the total traps set up in that county. Corn Earworm This ...

  5. Battle for the Belt: Season 4, Episode 10: Late-Season Insect Pests

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-27/battle-belt-season-4-episode-10-late-season-insect-pests

    At the Western location, early April-planted corn has reached R5, or the dent growth stage (Figure ... yield. Late April- and May-planted corn at this location has reached the R4, or dough, growth stage. The ...   GDDs (Cumulative)   Corn Growth  Stage  Soybean Growth Stage   Western,   Clark County   4 Min: 71°F  ...

  6. Lep Monitoring Network Update #17 – Fall Armyworm Monitoring Starting

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-26/lep-monitoring-network-update-17-%E2%80%93-fall-armyworm-monitoring

    when a county has an average of 7.0 moths or higher. Fall Armyworm Moth Map Week 1 August 3 rd – August ... Moth Map Week 10 August 3 rd – August 9 th, 2026   Figure 3. Average corn earworm (CEW) moths captured ... 43 traps. Overall, our statewide average was 3.3 with the majority of moth activity in the western ...

  7. Relentless Inundation

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-27/relentless-inundation

    Figure 1 shows rainfall totals and percent of normal rainfall for August 10 – 16, 2026. Most areas from ... even washing away donated items that were dropped off after the first bout of flooding. Portions of ... well. Agriclutural impacts include flooded corn, soybean, and hay fields with varying degrees of damage, ...

  8. Lep Monitoring Network Update #15 – Western Bean Cutworm Numbers Still on the Rise

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-24/lep-monitoring-network-update-15-%E2%80%93-western-bean-cutworm-numbers

    https://youtu.be/qGjpwtfkObM?si=CFPzX1rlqt6jzyJw Western Bean Cutworm Moth Map Week 8 July 20 th – July 26 th, 2026   Corn Earworm This week we ... increasing but are expected to slow down in the next few weeks. For more information, read below.   Western ... Bean Cutworm This week, 20 counties monitored WBC using 55 traps (Figure 2). The statewide average ...

  9. Summer Crop Insects – What to Watch For

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-22/summer-crop-insects-%E2%80%93-what-watch

    September. July is Western bean cutworm month in corn, but this pest varies widely from year to year. Corn ... corn, reported in the CORN newsletter each week Stink bugs in soybean make their first appearances as ... Almost every field season has it’s particular insect problems and surprise ‘gotcha’ moments. But ...

  10. Battle for the Belt: Season 4, Episode 9- Soybean & Corn Plant Population Update

    https://agcrops.osu.edu/newsletter/corn-newsletter/2026-25/battle-belt-season-4-episode-9-soybean-corn-plant-population

    episode, Dr. Laura Lindsey and Dr. Osler Ortez provide an update on soybean and corn performance at the ... Western Agricultural Research Station in Clark County, highlighting how early-season stress can affect ... challenges, the crop has shown strong recovery and currently exhibits plant populations near 70,000 plants per ...

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