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Department of Entomology

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  1. The Tree Course- Trees of the Great Eastern Forest- Field Recognition

    https://ocvn.osu.edu/events/tree-course-trees-great-eastern-forest-field-recognition

    in hand, and by the bark when a tree’s leaves are too high in the canopy to clearly see. Topics of ...

  2. Media Advisory: Ohio State Experts Available to Speak on Bees and Pesticides

    https://news-archive.cfaes.ohio-state.edu/news-release/media-advisory-ohio-state-experts-available-speak-bees-and-pesticides

    Dave Shetlar,  a professor in the Department of Entomology based in Columbus, described a less-toxic ...  Shetlar specializes in pests of turfgrass and landscape plants. Johnson, Ellsworth and Shetlar have ...

  3. Researchers Investigate Nursery Stock Bark Splitting

    https://news-archive.cfaes.ohio-state.edu/news-release/researchers-investigate-nursery-stock-bark-splitting

    January 3, 2006 COLUMBUS, Ohio — Nursery tree stock throughout Ohio is suffering from bark ... felt that bark splitting was something that was easy to diagnose. But what is happening here is ... unusual." Bark splitting, or cracking, occurs on thin-barked trees and most commonly on the southwest side ...

  4. Advanced BioBased Systems Workshop: Pipeline to Commercialization

    https://agnr.osu.edu/events/advanced-biobased-systems-workshop-pipeline-commercialization

    commercialization. The keynote address for the workshop will be Roger Wyse, Spruce Capital Partners with an investor ...

  5. Ohio State Scientist: EPA's Alert on Imprelis is Warranted

    https://news-archive.cfaes.ohio-state.edu/news-release/ohio-state-scientist-epas-alert-imprelis-warranted

    including to Norway spruce and white pine, after Imprelis was used. On Aug. 11, the EPA issued an order to ...

  6. Maple Tree ID

    https://agnr.osu.edu/specialty-crop-business/maple-syrup/maple-tree-id

    Black, Red and Silver Maple. Species Leaf Bark Twig Fruit Sugar Maple 3-5 inches wide; 5lobed (rarely ... (compare with red and silver maple). Young trees up to 4-8 inches with smooth gray bark. Older trees ... the bark surface in sugar maple) and often more hairy buds. Similar to sugar maple with, perhaps, ...

  7. Ohio Christmas Tree Association honors Dave Shetlar

    https://students.cfaes.ohio-state.edu/news/ohio-christmas-tree-association-honors-dave-shetlar

    We’re pleased to inform you that Dave Shetlar, Entomology, has been elected to the Hall of Fame of ...

  8. Ohio State Experts on Emerald Ash Borer (Updated February 2007)

    https://news-archive.cfaes.ohio-state.edu/news-release/ohio-state-experts-emerald-ash-borer-updated-february-2007

    Conducts research on resistance of different species of ash to EAB and insecticides. —David Shetlar, OSU ... Extension entomologist, (614) 292-3762 or shetlar.1@osu.edu: Member of the Ohio Emerald Ash Borer Task ...

  9. Healthier Holiday Foods

    https://ross.osu.edu/healthier-holiday-foods

    https://ohioline.osu.edu/factsheet/HYG-5543 ...

  10. Use Glyphosate Properly to Protect Woody Plants

    https://news-archive.cfaes.ohio-state.edu/news-release/use-glyphosate-properly-protect-woody-plants

    improperly or in too high of a dosage is causing a phenomenon known as split bark-- where, through the ... tree's uptake, the chemical is deteriorating the bark structure and destroying the winter hardiness of ... industry from bark cracking is conservatively estimated at $6.6 million a year. That's roughly 2.5 ...

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