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  1. Grape Black Rot

    https://ohioline.osu.edu/factsheet/plpath-fru-24

    one of the most damaging diseases of grapes in Ohio and other northeastern states. The disease is ... rachises and cluster stems (peduncles) of grapes. If the disease is not managed early in the season, the ... on a grape leaf. Inset shows the dark pycnidia that can be seen in the center of each spot. Disease ...

  2. Sooty Blotch and Fly Speck of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-41

    Pathology Sooty blotch and fly speck are two different diseases. Both diseases are widespread throughout the ... of near-mature fruit. The discoloration is superficial, and while neither disease actually damages ... the fruit, the presence of disease reduces the grade and market value of the fruit. Although all apple ...

  3. Kiwifruit and Hardy Kiwi (Kiwiberries)

    https://ohioline.osu.edu/factsheet/hyg-1426

    will tenderize meat. Diseases and Pests Phytophthora crown and root rot is one of the more serious ... diseases in hardy kiwi. It causes weak plant growth and the development of small yellow leaves. Terminal ... growth may be stunted or die back. Plants often collapse and die during hot weather. This disease occurs ...

  4. Phomopsis Twig Blight of Blueberry

    https://ohioline.osu.edu/factsheet/plpath-fru-45

    Department of Plant Pathology Phomopsis twig blight may be the most common canker disease of blueberries. ... This disease has the potential to severely decrease yields, particularly on susceptible varieties. ... necrotic area spreads as the disease progresses (figure 1). On stems, Phomopsis twig blight symptoms may be ...

  5. The Cannabis Market and Its Impact on Hemp

    https://ohioline.osu.edu/factsheet/anr-97

    free of damage or disease, full of natural aroma, rich in trichomes (also called frost by specialized ... Program Update: By the Numbers. Ohio Department of Commerce. PDF. ... https://www.medicalmarijuana.ohio.gov/Documents/ProgramUpdate/program%20update.pdf. Somani, Kunal. 2019. “North American E-cigarette and Legal Cannabis Markets.” BCC Publishing ...

  6. Bitter Rot of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-20

    rot is a common fruit rotting disease of apple (and pear) that occurs in all states where apples and ... disease on peach. Glomerella cingulata can also cause a leaf spot and canker on apple, although these ... forms of the disease are not common in Ohio. Disease Development and Symptoms Figure 1. Bitter rot on ...

  7. Verticillium Wilt of Strawberry

    https://ohioline.osu.edu/factsheet/plpath-fru-32

    disease development may occur when soil temperature is from 70 to 75 degrees F (21 to 24 degrees C). Many ... differentiate from those caused by other root infecting fungi. Isolation from diseased tissue and culturing the ... fungus in the laboratory are necessary for positive disease identification. On infected strawberry ...

  8. Diplodia Tip Blight of Two-Needled Pines

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

    diseases in the urban environment. It affects many common landscape pines in the Midwest, including ... disease is found throughout the Great Plains, Midwest, Northeast, and California. Figure 1. Typical tip ... blight symptoms on Austrian pine. Symptoms and Signs This disease is characterized by the blight, or ...

  9. Phomopsis Cane and Leaf Spot of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-47

    Pathology For many years, the Eastern grape industry recognized a disease called "dead-arm," which ... dead-arm disease was actually two different diseases that often occur simultaneously. Phomopsis cane and ... dieback are distinctly different diseases, and their control recommendations vary greatly. Disease ...

  10. Phytophthora Root and Crown Rot of Fruit Trees

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

    Pathology Phytophthora root and crown rots (sometimes called collar rot) are common and destructive diseases ... root rot. Symptoms Diseased trees are commonly found in poorly drained areas of the orchard or yard. ... Heavy, wet soils that remain saturated for extended periods of time are required for disease development. ...

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