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  1. Picea engelmannii

    https://chadwickarboretum.osu.edu/woody-plants/picea-engelmannii

    Wikipedia Engelmann spruce Picea engelmannii USDA Plants Database Link ...

  2. Picea glauca

    https://chadwickarboretum.osu.edu/woody-plants/picea-glauca

    Wikipedia white spruce Picea glauca USDA Plants Database Link ...

  3. Picea omorika

    https://chadwickarboretum.osu.edu/woody-plants/picea-omorika

    Wikipedia Serbian spruce Picea omorika USDA Plants Database Link ...

  4. Picea pungens

    https://chadwickarboretum.osu.edu/woody-plants/picea-pungens

    Wikipedia Colorado spruce Picea pungens USDA Plants Database Link ...

  5. 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 ...

  6. 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 ...

  7. Time to Start Scouting for Potato Leafhoppers in Alfalfa

    https://forages.osu.edu/news/time-start-scouting-potato-leafhoppers-alfalfa

    Our extension factsheet on potato leafhopper in alfalfa is HERE.  Insects ...

  8. 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 ...

  9. 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 ...

  10. 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 ...

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