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  1. Downy Mildew of Blackberry

    https://ohioline.osu.edu/factsheet/plpath-fru-48

    blackberry (Rubus sp.) is a systemic disease caused by the fungal-like pathogen Peronospora sparsa. Nearly ... all blackberry cultivars are susceptible to downy mildew. The disease also occurs on boysenberry, ... visible. Disease is most severe during wet weather with cool to warm temperatures. Figure 1. Downy mildew ...

  2. 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 ...

  3. Brown Rot of Stone Fruits

    https://ohioline.osu.edu/factsheet/plpath-fru-29

    Pathology Brown rot is a common and destructive disease of peach and other stone fruits (plum, nectarine, ... appear in the spring as the blossoms open. Diseased flowers wilt, turn brown, and may become covered with ... from an infected peach. Figure 5. Brown rot disease cycle. We want to thank the New York State ...

  4. Natural Organic Lawn Care

    https://ohioline.osu.edu/factsheet/hyg-4031

    irregular brown patches. In lawns that are heavily damaged, the sod can be easily lifted. A few grubs per ... Weeds, insects and diseases are managed by cultural practices that are oriented toward prevention. ... therefore based on years of collective experience. Additional fact sheets regarding turf care and ...

  5. Food Safety Graduate Courses

    https://foodsafety.osu.edu/food-safety-education/graduate-courses

    or cause food-transmitted diseases, as well as beneficial microorganisms. Control of harmful ... microorganisms that spoil food or cause food-transmitted diseases, as well as beneficial microorganisms. Prereq: ... Investigations 3.0 Principles and practice of field epidemiology, including outbreak investigation and disease ...

  6. Masked Chafers

    https://ohioline.osu.edu/factsheet/ENT-51

    rapidly recover after rain or irrigation. Heavy infestations result in turf dying in irregular patches ... . Birds, skunks, raccoons and opossums commonly dig up turf around the dead patches. Moles may tunnel ... Entomology Masked chafers are beetles that have larvae, called white grubs, which can attack managed turf ...

  7. Rhizoctonia Damping-off and Root Rot of Soybeans

    https://ohioline.osu.edu/factsheet/plpath-soy-1

    Characteristic reddish-brown sunken cankers on the soybean hypocotyl caused by Rhizoctonia solani. Disease Cycle ... Rhizoctonia result from stand reduction in newly planted fields, premature death of diseased plants, and ... production of smaller seed. Symptoms of this disease are usually noticed by early summer, where wilted or ...

  8. SENR Announcements, August 12

    https://senr.osu.edu/email/senr-announcements-august-12

    Natural Resources, and Carrie Brown, educator, OSU Extension- Fairfield county. Attendees learned how to ...

  9. Phomopsis Leaf Blight and Fruit Rot of Strawberry

    https://ohioline.osu.edu/factsheet/plpath-fru-18

    Department of Plant Pathology Phomopsis leaf blight is a common disease of strawberry in the eastern United ... appears to be relatively minor; however, incidence of the disease has been increasing. The disease can ... yields the following year. In years highly favorable for disease development, leaf blight can cause ...

  10. Anthracnose of Strawberry

    https://ohioline.osu.edu/factsheet/plpath-fru-16

    Department of Plant Pathology Anthracnose is an important disease of strawberry that can affect foliage, ... runners, crowns and fruit. The disease is caused by several species of fungi in the genus Colletotrichum: ... nearly identical symptoms on strawberry. The two most destructive forms of the disease are crown rot, ...

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