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  1. White Rot and Botryosphaeria Canker of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-42

    canker phase of the disease is most severe in trees weakened by drought, winter injury, sunscald, poor ... pruning, low or unbalanced nutrition, and other plant diseases. The fruit rot phase can be sporadic in ... to be affected than other varieties. Symptoms Fruit At first, small, reddish-brown spots appear ...

  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. 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 ...

  5. 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 ...

  6. 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 ...

  7. 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 ...

  8. 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 ...

  9. 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, ...

  10. Maize Dwarf Mosaic of Maize

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

    important corn virus diseases in the U.S. It has been reported in 37 states located in most regions of the ... Ohio. Infected plants show mosaic patches of light and dark green color on leaves (Fig. 1). Plants show ... abundant, a typical yellowing mosaic or mottle pattern is more evident. Flecks and rings may be observed on ...

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