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  1. Apple Powdery Mildew

    https://ohioline.osu.edu/factsheet/plpath-fru-21

    usually at the ends of branches. Small, whitish felt-like patches of fungal growth appear and quickly ... cover the entire leaf. Diseased leaves become narrow, crinkled, stunted and brittle. By mid-summer, ... fungal fruiting bodies, but their importance in the disease cycle is probably minimal. The fungus spreads ...

  2. Gray Leaf Spot of Corn

    https://ohioline.osu.edu/factsheet/plpath-cer-05

    prevalent foliar fungal diseases of corn in the state of Ohio ever since it was first reported in parts of ... into no-till fields and conditions are favorable for infection. Reports of high disease severity are ... humidity favor infect and disease development and spread. Under these conditions, yield losses ranging from ...

  3. Ohio Opportunity Zones in Community and Economic Development

    https://ohioline.osu.edu/factsheet/cdfs-4112

    Service. 2021. Opportunity Zones (web page). Reviewed or updated November 10, 2021. ...

  4. Rusts of Apple

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

    PLPATH-FRU-02 05/06/2016 Michael A. Ellis, Department of Plant Pathology Three rust diseases occur ... green area becomes brown and spongy. The formation of pycnia and aecia on infected fruit is rare. Apples ... crabapple. Larger, gray to brown spots form on leaves of hawthorn. Few aecia form on apple and crabapple. ...

  5. Botrytis Bunch Rot or Gray Mold of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-03

    mold grape infected grapes shriveled grapes brown grapes diseased grapes controlling grape fungus Plant ... and causes diseases on a variety of unrelated crops. Bunch rot can cause serious losses on highly ... Infection of ripe berries is the most common and destructive phase of this disease. Infected berries first ...

  6. Powdery Mildew of Wheat

    https://ohioline.osu.edu/factsheet/plpath-cer-11

    tritici, is the most common foliar disease of wheat in Ohio. It is most damaging in years with relatively ... late April or early May when wheat is in the joint to flag-leaf stage of development. This disease ... the flag leaf becomes severely diseased by heading. Losses of up to 45 percent have been documented in ...

  7. Parasitic Higher Plants

    https://ohioline.osu.edu/factsheet/plpath-gen-9

    of key concepts in plant pathology. Plant pathology is the study of plant disease including the ... planting seed that has dodder seed mixed with it. Patches of dodder in field crops or along fences or ditch ... disease including the reasons why plants get sick and how to control or manage healthy plants. Links Dwarf ...

  8. Pruning Blueberry Bushes in the Home Garden

    https://ohioline.osu.edu/factsheet/hyg-1430

    Horticulture and Crop Science, The Ohio State University Maurus Brown, Ph.D., Associate Professor Emeritus, OSU ... disease control, and proper pruning help to assure quality fruit at harvest. This fact sheet is intended ... best flower buds and save them. Remove all diseased and broken canes. Remove dead twigs. Remove canes ...

  9. Bacterial Spot of Stone Fruits

    https://ohioline.osu.edu/factsheet/plpath-fru-38

    Pathology Bacterial spot affects peaches, nectarines, apricots, plums, prunes and cherries. The disease is ... the tree, predisposing it to winter injury and attack by other pathogens. The disease is usually more ... disease than devitalized, neglected trees. Figure 1. Bacterial spot on peach leaf. Note the “shot-holes” ...

  10. Peach Leaf Curl

    https://ohioline.osu.edu/factsheet/plpath-fru-26

    disease that occurs on peach, nectarine, and related ornamental plants. The disease, though not a problem ... other diseases and to winter injury. Weakened trees also will produce fewer fruit the following season. ... Yield may be further reduced when blossoms and young fruit become diseased and drop. Symptoms Figure 1. ...

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