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  1. Sour Rot

    https://ohiograpeweb.cfaes.ohio-state.edu/ipm/diseases/sour-rot

    the disease. However, the acetic acid bacteria, Acetobacter spp. and  Gluconobacter spp. are always ... turn light chestnut brown (image above, Photo courtesy- Purdue Univ.), whereas infected berries of red ... disease development. Fungicides: Fungicides are not effective for managing sour rot. Additional Resources ...

  2. Anthracnose

    https://ohiograpeweb.cfaes.ohio-state.edu/ipm/diseases/anthracnose

    Anthracnose Anthracnose, also known as bird's-eye rot, is a fungal disease. When ... susceptible. Signs and Symptoms Brown spots on leaf surface Brown spots on stem On Leaves: Leaves develop ... numerous circular brown spots which later turn gray in the center with dark brown or black margins. In ...

  3. Black Rot

    https://ohiograpeweb.cfaes.ohio-state.edu/ipm/diseases/black-rot

    Black Rot  Black rot is one of the most damaging fungal diseases of grapes in Ohio, especially ... brownish red in color with dark brown edges. Within the lesions, small black fungal structures called ... lesions (cankers) that are 1mm to 2 cm long (image on the right, Photo courtesy- Virginia Grape Disease ...

  4. August Update on Scouting and Treating SLF in Cleveland

    https://ohiograpeweb.cfaes.ohio-state.edu/blog/august-29-2022-431pm/august-update-scouting-and-treating-slf-cleveland

    ...

  5. Downy Mildew

    https://ohiograpeweb.cfaes.ohio-state.edu/ipm/diseases/downy-mildew

    Downy Mildew Downy mildew is a fungal-like disease caused by  Plasmopara viticola. The disease is ... the upper surface of the leaf. As the disease develops the spots enlarge and turn yellow (image on ... are often confused with powdery mildew. As the leaf ages, the spots turn brown (necrotic) and become ...

  6. Building Better Spray Programs for Vineyards

    https://ohiograpeweb.cfaes.ohio-state.edu/events/building-better-spray-programs-vineyards

    producers. Developing spray programs that focus not only on disease management, but also fungicide resistance ... curriculum to learn from national experts in grape diseases and fungicide resistance management, about mildew ... diseases and management, best practices for using fungicides, and best sprayer practices. This online ...

  7. Phomopsis

    https://ohiograpeweb.cfaes.ohio-state.edu/IPM/phomopsis

    Phomopsis Phomopsis is a cold weather fungal disease and is widely distributed. It is problematic ... infection, even after infected wood dies. Therefore a serious disease outbreak in one season can provide ... irregular margins appear early in the season (image on the right, Photo courtesy- Ohioline, OSU), as disease ...

  8. Grape Root Borer

    https://ohiograpeweb.cfaes.ohio-state.edu/ipm/insects/grape-root-borer

    with the forewings brown and the hindwings clear with brown borders. The body mimics that of a wasp, ... brown with yellow markings. Male moths measure about 5/8 inch in length, while the female is larger, ... white with a brown head capsule. Mature larvae move to places just under the surface of the soil and ...

  9. Large Crabgrass

    https://ohiograpeweb.cfaes.ohio-state.edu/ipm/weeds/large-crabgrass

    vineyards, gardens, landscaped areas, turf, nurseries, pastures, roadsides, ditches, and other disturbed ... Seeds are shiny, yellowish-brown and are 2-3 mm long. Management Cultural Practices Elevated mowing ... 1.5 to 3.0 inches. Thin turf in the spring or drought conditions often leads to major infestations of ...

  10. Eastern Viticulture and Enology Forum- Town Hall

    https://ohiograpeweb.cfaes.ohio-state.edu/events/eastern-viticulture-and-enology-forum-town-hall-2

    virtual meeting series to give seasonal updates and answer pre-submitted and live questions from grape and ...

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