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  1. Alfalfa Weevil and Alfalfa Quality

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-13/alfalfa-weevil-and-alfalfa-quality

    Alfalfa weevils have been in the growing degree days (GDD) window for peak feeding for at least ... this (Jan. 1 – May 12), heat units range from 698 in southcentral Ohio to 388 in northeast Ohio. Figure ... 1. Map of accumulated growing degree days (base 48°F sine calculation method) for January 1 – May 12, ...

  2. Peak Alfalfa Weevil Activity

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-12/peak-alfalfa-weevil-activity

    Ohio. Figure 1. Map of accumulated growing degree days (base 48°F sine calculation method) for January ... We took another jump in growing degree days (GDD) this week and are seeing the response from ... of writing this (Jan. 1 – May 5), heat units range from 618 in southcentral Ohio to 337 in northeast ...

  3. Lep Monitoring Network – Black Cutworm and True Armyworm Update # 3

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-13/lep-monitoring-network-%E2%80%93-black-cutworm-and-true-armyworm-update-3

    We just finished monitoring week 3 of black cutworm (BCW) and true armyworm (AMW) across Ohio ... week BCW trap numbers remained high for many counties in Ohio. A total of 50 traps in 19 counties ... scout BCW please visit: https://aginsects.osu.edu/sites/aginsects/files/imce/ENT_35_14 BCW.pdf Black ...

  4. Statewide Slug Monitoring Project – Update # 1

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-13/statewide-slug-monitoring-project-%E2%80%93-update-1

    a concern for growers in Ohio because growers, especially those with no-till fields where cover crops are ... tend to find slugs feeding on cloudy or rainy days. Both of these situations are not ideal for ... slug variations in Ohio and across the region.   Figure 1. Slug feeding on soybean cotyledon in the ...

  5. Wheat Foliar Diseases and Head Scab Risk

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-13/wheat-foliar-diseases-and-head-scab-risk

    disease in wheat. Ohio’s wheat crop is either at or past Feeke’s Growth Stage 10 (boot) and now is the ... Caramba, Proline, or Miravis Ace at Feekes Growth Stage 10.5.1 (early flowering) or within the first 4 day ... for southern up through north central Ohio. Wheat Disease ...

  6. Battle for the Belt: Season 3, Episode 6: What is Battle for the Belt 2.0?

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-12/battle-belt-season-3-episode-6-what-battle-belt-20

    Northeast Ohio (Wooster Campus, Wayne County) (Figure 3). The objectives of this project are: Identify ... does not end there. In 2025, we are launching Battle for the Belt 2.0! From 2023 until the present day ... be reduced by several abiotic and biotic factors. Pictures from Ohio’s staple agronomic crops ...

  7. Wheat Heading, Flowering, and Head Scab Risk

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-13/wheat-heading-flowering-and-head-scab-risk

    over the last 7-10 days, the wheat crop is now heading-out or flowering in some parts of the state – do ... Feekes 10.5; Once the heads are completely out, it may take another 3-5 days, and sometimes longer if ...

  8. Lep Monitoring Network – Black Cutworm and True Armyworm Update # 2

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-12/lep-monitoring-network-%E2%80%93-black-cutworm-and-true-armyworm-update-2

    It is week 2 of monitoring Lepidopteran pests in ag crops across Ohio, and despite all of the rain ... cutworm Over the past week BCW moth trap numbers remained high across Ohio with many monitoring counties ... in 5 – 10 days, and larvae go through 6 instar stages over the next 28 – 35 days. Counties with high ...

  9. Weather Improvements Are on the Way, No Really!

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-12/weather-improvements-are-way-no-really

    days, ending at 8 am EDT Monday May 5, 2025. Figure courtesty of the Ohio River Forecast Center in ... north central Ohio, and 0.5-1.5 for all other locations over the next seven days (Figure 2). Figure 2). ... Climate Prediction Center and the 16-Day Rainfall Outlook from NOAA/NWS/Ohio River Forecast Center show ...

  10. Battle for the Belt: Season 3, Episode 5: Weather and Planting Update

    https://agcrops.osu.edu/newsletter/corn-newsletter/2025-11/battle-belt-season-3-episode-5-weather-and-planting-update

    Ohio. Planting has picked up across Ohio under mild, favorable conditions. Soil temperatures are mostly ... Wooster sites between April 16 th and 18 th (Table 1). Looking ahead, plans are in place to move forward ... Wooster locations, are showing promising signs, with emergence out of the ground visible (Figure 1). These ...

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