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  1. Understanding Pesticides in Organic and Conventional Crop Production Systems

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

        Colorado potato beetle on the left is an example of a pest, while the swallowtail butterfly on the right is ... parasitoids, or pathogens (Barbercheck). Predators such as ladybird beetles catch and eat insect prey. ... Biocontrol example is shown by these aphids parasitized by wasps. Photo by Dr. David Shetlar, The Ohio State ...

  2. Black Rot and Frogeye Leaf Spot of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-07

    develop in the bark. These areas slowly enlarge and darken to form cankers. Cankers may continue to expand ... bark; or the bark may be killed and conspicuously cracked, especially at the margins. In recently killed ... areas, the bark is firmly attached to the wood; but after a year or so, it cracks and falls away and can ...

  3. Lichens

    https://ohioline.osu.edu/factsheet/plpath-gen-12

    growing on the bark of a tree.  (Photo by David J. Goerig.) Where do lichens grow? Lichens are located on ... Bark, wood, mosses, rock, soil and peat are all natural substrates. Thalli will also establish itself on ... normally found on tree bark, for instance, are rarely found on rock and vice versa. Lichens established on ...

  4. Improving Biomass Properties via Densification and Upgrading

    https://ohioline.osu.edu/factsheet/fabe-6605

    (40.3) Willow [2]* 170 (10.6) 3,100 (83.2) Stacked wood – Norway spruce [5]* 310 (19.4) 6,350 (170) ... this factsheet. References Bergman, Patrick C.A. Combined torrefaction and pelletization. Petten: The ... scirp.org/journal/paperinformation.aspx?paperid=18380. Lehtikangas, Paivi. 2001. “Quality properties of pelletized sawdust, logging residues and bark ...

  5. Sour Rot Disorder of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-50

    2019. ohioline.osu.edu/factsheet/ent-86 Shetlar, David J. “Yellowjackets.” Ohioline. The Ohio State ... those that are killed. Commercial or homemade wasp traps (Shetlar, 2012) can be placed in the vineyard ... 2016. ohioline.osu.edu/factsheet/plpath-fru-03 Ivey, Melanie L. “Grape Black Rot.” Ohioline. The Ohio ...

  6. Growing Rhubarb in the Home Garden

    https://ohioline.osu.edu/factsheet/hyg-1631

    usually not a problem on rhubarb in the home garden. However, the rhubarb curculio, a rusty snout beetle ...

  7. Multicolored Asian Lady Beetle

    https://ohioline.osu.edu/factsheet/ENT-44

    Lady beetles, which are sometimes called ladybugs or lady bird beetles, are familiar insects in many ... parts of the United States. Lady beetles generally are beneficial predators that consume aphids, scale ... Assembly (1). Lady beetles are also state insects for Delaware, Massachusetts, New Hampshire, New York and ...

  8. Phytophthora Root and Crown Rot of Fruit Trees

    https://ohioline.osu.edu/factsheet/plpath-fru-06

    declining tree. A diagnostic reddish-brown discoloration of the inner bark and wood can be observed after ... cutting away the outer bark layer. A sharp line demarcates the reddish-brown (diseased) and white ...

  9. Home Preservation of Fish

    https://ohioline.osu.edu/factsheet/hyg-5351

    unpleasant tastes in the fish. Do not use fir, spruce, pine or cedar. Cold-smoke (90 to 100 degrees F) for ...

  10. Controlling Non-Native Invasive Plants in Ohio Forests: Privet (Ligustrum spp.)

    https://ohioline.osu.edu/factsheet/F-103

    the leaf while the leaves of European privet are hairless. Stems:  Arrangement is opposite. Bark is ... often difficult to achieve complete coverage. Basal bark treatments should only be applied when the ... ground and applying an herbicide to the cut surfaces (and sometimes the bark) with a spray bottle or ...

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