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  1. Projects

    https://mphm.osu.edu/projects

    Preventive Control of Bluegrass Billbug, Sphenophorus parvulus, in Lawn Turf, 2015. DJ Shetlar, S Erick,  J ...

  2. Boxelder Bugs and Leaf-footed Bugs

    https://ohioline.osu.edu/factsheet/HYG-2106

    HYG-2106 03/09/2010 David J. Shetlar, Department of Entomology Susan C. Jones, Department of ... western pine-seed bug, belongs to a small group of true bugs called the leaf-footed bugs. As the name ... Douglas-fir, hemlock, white spruce, and various species of pine, where they use their piercing-sucking ...

  3. 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 ...

  4. 20 Questions on Plant Diagnosis

    https://ohioline.osu.edu/factsheet/plpath-gen-3

    determining whether a plant is a pine or a spruce, determining if it is naturally variegated or deciding if it ... evergreen conifer, such as pine. Knowing how to identify these deciduous conifers and understanding that ... caused by moisture stress, herbicide injury or aphids. Knowing that the needles of dragons-eye pine ...

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

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

    the Best Nozzle for the Job” available online at ohioline.osu.edu/factsheet/fabe-528.  Maintain Proper ... Sprayer Tank?” available online at ohioline.osu.edu/factsheet/fabe-530. Final Thoughts The directions on ... Agricultural and Biological Engineering, Ohio State University; Dr. Dave Shetlar, Professor ...

  6. Calculating Cation Exchange Capacity, Base Saturation, and Calcium Saturation

    https://ohioline.osu.edu/factsheet/anr-81

    Extension AGF-514. ohioline.osu.edu/factsheet/AGF-514   Havlin, J., et al. Soil Fertility and Fertilizers, ...

  7. Manure and Compost: Nitrogen Availability in Organic Production

    https://ohioline.osu.edu/factsheet/anr-34

    Extension Factsheet AEX-707-91. Retrieved on March 25, 2014 from ohioline.osu.edu/aex-fact/0707.html. Smith, ...

  8. Summer Days Ahead: Don’t Ignore Heat Stress!

    https://agsafety.osu.edu/newsletter/ag-safety-stat/safety-through-seasons-2021/summer-days-ahead-don%E2%80%99t-ignore-heat-stress

    information on symptoms and first aid measures, read the following resources: Heat Stress (factsheet ... ) Ohioline.osu.edu/factsheet/aex-591108 Heat Stress. Farmworker Health and Safety ...

  9. Spider Mites and Their Control

    https://ohioline.osu.edu/factsheet/HYG-2012-11

    HYG-2012 09/20/2011 David J. Shetlar, Department of Entomology Spider mites are not insects but ... "cool season" mite. This pest can be found on all types of conifers from spruces and pines to ...

  10. Fungus Beetles

    https://ohioline.osu.edu/factsheet/HYG-2084-10

    HYG-2084 10/19/2011 David J. Shetlar, Department of Entomology Fungus beetles is a general term ...

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