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  1. Foliar Diseases and Fungicide Decisions in Corn

    https://agcrops.osu.edu/newsletter/corn-newsletter/23-2021/foliar-diseases-and-fungicide-decisions-corn

    This July has been one of the wettest on record, and with the extra moisture, comes concerns about ... reported in some fields, well before tasseling in some cases. Such early disease development could impact ... by wet conditions. Although grain prices may be high enough to justify a fungicide application, it is ...

  2. Soybean Defoliation: It Takes a lot to Really Matter!

    https://agcrops.osu.edu/newsletter/corn-newsletter/22-2021/soybean-defoliation-it-takes-lot-really-matter

    The mid-season defoliators are beginning to show up in soybean fields across Ohio. These ... fields to assess levels of damage, it is important not to let one’s eye and mind over estimate what is ... the tops of plants producing a startling appearance that easily catches one’s eye standing at the edge ...

  3. To Spray or Not to Spray…Foliar Products at R3

    https://agcrops.osu.edu/newsletter/corn-newsletter/23-2021/spray-or-not-spray%E2%80%A6foliar-products-r3

    economic levels of defoliation here in Ohio.” (Click here to read the entire article: https ... long (but less than 3/4 inch long) at one of the four uppermost nodes on the main stem with a fully ... developed trifoliolate leaf. A leaf is fully developed, and the node is counted, when the trifoliolate leaf ...

  4. Tar Spot Showing Early this Year: a Note on Diagnosis

    https://agcrops.osu.edu/newsletter/corn-newsletter/22-2021/tar-spot-showing-early-year-note-diagnosis

    I have so far only received one confirmed report of Tar Spot in the state, but the fact that the ... usually shows up as raised, black spots, primarily on the leaf blast. The size of the spots may vary, but ... highest when it develops and spreads before tasseling (VT) on susceptible hybrids. Warm, wet, and humid ...

  5. Blackpatch of Forage Legumes and Slaframine Intoxication

    https://agcrops.osu.edu/newsletter/corn-newsletter/24-2021/blackpatch-forage-legumes-and-slaframine-intoxication

    intertwined filaments cover the entire stem and may also be found in blighted flower heads.  Seeds developing ... slobbers. One of the causes of excessive salivation in horses is a fungal disease of clover, commonly ... exceed 80F with humid/wet conditions, like we have been experiencing in Ohio. Here we are re-running an ...

  6. How to Distinguish Flooding Injury from Phytophthora or Pythium Root Rot in Soybeans

    https://agcrops.osu.edu/newsletter/corn-newsletter/23-2021/how-distinguish-flooding-injury-phytophthora-or-pythium-root-rot

    (Figure 2) will develop, the plants will turn yellow, wilt and die. Cultivars with low ratings may lose as ... Flooding injury occurs when soils are saturated for several days and anoxia develops.  The roots ... plants become infected with one of more of the watermolds – the roots will turn tan to dark brown and ...

  7. Claflin hired as assistant professor of agriscience education

    https://acel.osu.edu/news/claflin-hired-assistant-professor-agriscience-education

    beneficial to the continual growth of our undergraduate and graduate programing and development of future ... M.S. and Ph.D. curricula and represent the department in creating, with Ohio Team Ag Ed, a focused ... Leadership, and Community Education.  The agriscience education program at Ohio State prepares its students to ...

  8. Fungicide Efficacy for Control of Corn Diseases

    https://agcrops.osu.edu/newsletter/corn-newsletter/23-2021/fungicide-efficacy-control-corn-diseases

    Many corn fields in Ohio are rapidly approaching silking (R1), and foliar diseases such as Gray ... leaf spot have been observed where the environment has been conducive to disease development, prompting ... growers to consider fungicide applications. The information below was developed by the Corn Disease ...

  9. Mitchell Roth

    https://plantpath.osu.edu/our-people/mitchell-roth

    affect the outcome of that interaction. The annual economic impact of filamentous pathogens like fungi ... practices, environmental factors, chemical control, and other microorganisms on the development of plant ... diseases. I look forward to building a team of talented researchers that are motivated by a curiosity of ...

  10. Early vegetative lodging and defoliation in field crops

    https://agcrops.osu.edu/newsletter/corn-newsletter/20-2021/early-vegetative-lodging-and-defoliation-field-crops

    https://extension.unl.edu/statewide/saline/DLFE-10108.pdf.pdf Corn, Soybeans, Wheat and Forages Field Guide – Bulletin 827. Ohio State University Extension: ... before pollination, there may be little effect on yield. Severe root lodging that occurred at the V10 ... growth stage reduced yield compared to non-lodged controls by 5% in recent work from Ohio but increased ...

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