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  1. Proper Calibration and Operation of Backpack and Hand Can Sprayers

    https://ohioline.osu.edu/factsheet/fabe-531

    Agricultural and Biological Engineering, Ohio State University; Dr. Dave Shetlar, Professor ...

  2. Protecting Pollinators While Using Pesticides

    https://ohioline.osu.edu/factsheet/anr-68

    flowering plants across ecosystems.  Honeybees are an example of pollinators. Photo by Dr. David Shetlar ... bee on sunflower. Photo by Dr. David Shetlar. The Ohio State University. Consider bees when treating ... monarch butterfly, bumble bee, cuckoo wasp. Photos by Drs. Mary Ann Rose and David Shetlar, The Ohio State ...

  3. Understanding Pesticides in Organic and Conventional Crop Production Systems

    https://ohioline.osu.edu/factsheet/anr-69

    Biocontrol example is shown by these aphids parasitized by wasps. Photo by Dr. David Shetlar, The Ohio State ...

  4. Identification of White Grubs in Turfgrass

    https://ohioline.osu.edu/factsheet/hyg-2510

    HYG-2510 Agriculture and Natural Resources 03/08/2012 David J. Shetlar and Jennifer Andon Ohio ...

  5. Honey Bees in House Walls

    https://ohioline.osu.edu/factsheet/HYG-2079

    HYG-2079 04/02/2012 David Shetlar, Barbara Bloetscher and Jennifer Andon Department of Entomology ...

  6. Carpenter Bees

    https://ohioline.osu.edu/factsheet/hyg-2074

    the abdomen. (Photo courtesy of D.J. Shetlar, OSU Entomology.) Identification Carpenter bees are large ... 4. Coarse sawdust from carpenter bees’ excavations. (Photo courtesy of D.J. Shetlar, OSU Entomology.) ...

  7. OSU Turfgrass Alumni and Students Shine in San Antonio

    https://hcs.osu.edu/news/osu-turfgrass-alumni-and-students-shine-san-antonio

    was heavily involved in the meeting. Dr. David Shetlar from the Department of Entomology was ...

  8. Turfgrass Science

    https://hcs.osu.edu/extensionoutreach/turfgrass-science

    Pathology (Joe Rimelspach) Entomology (Dr. Dave Shetlar) The Turfgrass Extension & Outreach Team has ...

  9. Carpenter Ants

    https://ohioline.osu.edu/factsheet/HYG-2063

    Shetlar, The Ohio State University, Entomology) Figure 2. Arrows point to the distinguishing ... black carpenter ant.  (Photograph courtesy of Dave Shetlar, The Ohio State University, Entomology) Life ... State University) Figure 5. Carpenter ant debris.  (Photograph courtesy of Dave Shetlar, The Ohio State ...

  10. Magnolia Scale

    https://ohioline.osu.edu/factsheet/ENT-61

    ENT-61 05/13/2015 David J. Shetlar and Jennifer E. Andon, Department of Entomology The magnolia ...

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