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Department of Entomology

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  1. Insecticidal and antifeedant properties of the medicinal plant Cinnamosma fragrans to control the mosquito vector Aedes aegypti

    https://grad.cfaes.ohio-state.edu/research-projects/edna-ariel-alfaro-inocente-0

    sesquiterpenes are toxic and/or antifeedant to the yellow fever mosquito Aedes aegypti. We show that the bark and ...

  2. Christmas Trees Offer Many Environmental Benefits — And You Can Put a Dollar Sign Next to Them

    https://news-archive.cfaes.ohio-state.edu/news-release/christmas-trees-offer-many-environmental-benefits-%E2%80%94-and-you-can-put-dollar-sign-next

    up." A blue spruce with a 2-inch-diameter trunk growing on a Christmas tree farm in, say, Doylestown in ... runoff and reduction of atmospheric carbon by 20 pounds. Meanwhile, a Scotch pine at that same location ... blue spruce planted in Columbus in front of a single-family home, for example, will provide $12 every ...

  3. 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 ...

  4. 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 ...

  5. 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 ...

  6. 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 ...

  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. Optimizing RNA interference in fall armyworm Spodoptera frugiperda using improved nanoparticles

    https://grad.cfaes.ohio-state.edu/research-projects/ana-trabanino-pino

    insect. Several studies have shown successful RNAi approaches with mosquitos, aphids and beetles. However, ...

  9. 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 ...

  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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