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  1. Frogeye Leaf Spot of Soybean

    https://ohioline.osu.edu/factsheet/AC-53

    dark gray, usually with a narrow, dark brown border. Disease Cycle Frogeye leaf spot is caused by the ... regions with warm, humid environments. Yield reductions from this disease have occurred in Ohio and this ... disease can also reduce seed quality in food grade varieties and seed production fields. Symptoms Lesions ...

  2. 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 ...

  3. Tips for Calibrating Grain Yield Monitors—Maximizing Value of Your Yield Data

    https://ohioline.osu.edu/factsheet/anr-8

    patches, or areas of major topography changes in the field. Hillsides and rolling ground can impact ...

  4. Phomopsis Twig Blight of Blueberry

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

    disease of blueberries. This disease has the potential to severely decrease yields, particularly on ... visible. Infected buds become brown and die. A necrotic, brown lesion forms on the twig around the blighted ... bud, and the sunken necrotic area spreads as the disease progresses (figure 1). On stems, Phomopsis ...

  5. 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, ...

  6. 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 ...

  7. Strawberry Leaf Diseases

    https://ohioline.osu.edu/factsheet/plpath-fru-35

    Pathology Fungal diseases of the leaf may occur as soon as the first leaves unfold in early spring and ... continue until dormancy in the late fall. On highly susceptible varieties, these diseases can cause ... significant economic damage. The primary damage from leaf diseases is a loss of vigor through reduced leaf ...

  8. Identification and Management of Soilborne Diseases of Tomato

    https://ohioline.osu.edu/factsheet/hyg-3314

    reduced yields. These symptoms may indicate soilborne diseases. Soilborne disease complexes, composed of ... long-term protected culture production. Soilborne disease complexes consisting of Verticillium wilt, ... operations in Ohio. Other soilborne diseases that may be present are Rhizoctonia root rot, Pythium root rot ...

  9. Managing Corn in Response to Severe Storms and Short-Term Weather Stressors

    https://ohioline.osu.edu/factsheet/anr-0151

    Additionally, foliar fungicides at the tassel stage (VT) or later can help protect against disease if pressure ... is high, but the effect is minimal when disease pressure is low. When hail damage exists and corn is ... Also, harvesting corn as silage earlier in the season can avoid further disease development and preserve ...

  10. 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 ...

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