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  1. Distinguishing Emerald Ash Borer from Native Borers

    https://ohioline.osu.edu/factsheet/ent-77

    just under the bark. Clearwing borers expel their frass (a mixture of sawdust and excrement) from the ... tree; this frass can accumulate in large quantities in bark crevices, branch crotches, and on the ... galleries wind just under the bark and are plugged with frass. There is a native species of Agrilus that ...

  2. Spider Mites and Their Control

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

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

  3. Hydrothermal Carbonization: Upgrading Waste Biomass to Char

    https://ohioline.osu.edu/factsheet/fabe-6622

    Jeffrey pine and white fir (Tahoe mix) 215-275 30 51-69 [6] Industry Sawdust 250 120 40 [7]   Sewage ... for technical and editorial review of this factsheet. References [1]    Ahmad, F., Silva, E. L., & ...

  4. Ground Beetles

    https://ohioline.osu.edu/factsheet/HYG-2102-10

    HYG-2102 10/19/2011 David J. Shetlar, Department of Entomology Ground beetles are occasionally ... logs, leaves, bark, decomposing wood, and other debris on the ground. When disturbed, beetles run ... a nuisance indoors by their presence. Homeowners may confuse these beetles for cockroaches, carpet beetles ...

  5. 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 ... covering several different beetles associated with damp, humid conditions where fungi, molds, and mildew ... become covered with molds attract these beetles. Some occur in sawdust left in wall voids after ...

  6. Northern House Mosquito

    https://ohioline.osu.edu/factsheet/ent-89

    Ohioline. The Ohio State University. https://ohioline.osu.edu/factsheet/ent-88. Ohio Department of Health. ...

  7. Oak Wilt

    https://ohioline.osu.edu/factsheet/plpath-tree-02

    However, there is some evidence that oak bark beetles (Coleoptera: Scolytidae) may also be involved. ... oaks) of spore-bearing fungal mats under the desiccating bark (Figure 4). These fungal mats crack the ... bark open with pressure pads to facilitate dissemination of the pathogen (see below). Sapwood streaking ...

  8. Carpenter Bees

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

    the abdomen. (Photo courtesy of D.J. Shetlar, OSU Entomology.) Identification Carpenter bees are large ... Eastern species of carpenter bees prefer softwoods such as cedar, redwood, cypress, pine, and fir. The ... with bark, but they can nest in a wide variety of wood products, including fence posts, utility poles, ...

  9. Beech Bark Disease

    https://ohioline.osu.edu/factsheet/plpath-tree-09

    Department of Plant Pathology Beech bark disease (BBD) is a devastating disease of American beech (Fagus ... grandifolia Ehrl.) caused by a combination of damage to the bark and vascular tissue by the beech scale insect ... infested trees, either sporadically—especially in rough bark or cracks on the bole—then in increasing ...

  10. Carpet Beetles

    https://ohioline.osu.edu/factsheet/HYG-2103-10

    HYG-2103 10/19/2011 David J. Shetlar, Department of Entomology Carpet beetles feed on animal and ... heavy furniture or pianos and at carpet edges. Adult beetles fly readily in May and June. They are ... black carpet beetles are oval and shiny-black with brownish legs. They vary in body length from 1⁄8 to ...

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