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  1. Viral Diseases of Plants

    https://ohioline.osu.edu/factsheet/plpath-gen-5

    colorful) names based on the disease they cause—for example, tobacco ring spot, watermelon mosaic, barley ... provide an overview of key concepts in plant pathology. Plant pathology is the study of plant disease ... intracellular (inside cells) pathogenic particles that infect other living organisms. Human diseases caused by ...

  2. Botrytis Bunch Rot or Gray Mold of Grape

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

    mold grape infected grapes shriveled grapes brown grapes diseased grapes controlling grape fungus Plant ... and causes diseases on a variety of unrelated crops. Bunch rot can cause serious losses on highly ... Infection of ripe berries is the most common and destructive phase of this disease. Infected berries first ...

  3. Powdery Mildew of Wheat

    https://ohioline.osu.edu/factsheet/plpath-cer-11

    tritici, is the most common foliar disease of wheat in Ohio. It is most damaging in years with relatively ... late April or early May when wheat is in the joint to flag-leaf stage of development. This disease ... the flag leaf becomes severely diseased by heading. Losses of up to 45 percent have been documented in ...

  4. Clover Mites

    https://ohioline.osu.edu/factsheet/HYG-2095

    They are a nuisance by their presence, but they do not bite humans or animals, transmit disease, nor ... feed on household furnishings or pantry supplies. They feed on various plants and turf outside, but ... Identification Clover mites are about 1/30 inch long (smaller than a pinhead), oval-shaped, reddish-brown to dark ...

  5. Lime and the Home Lawn

    https://ohioline.osu.edu/factsheet/hyg-4026

    a favorable environment for the development of summer patch disease, caused by a fungus that infects turfgrass ... ranges. Turf outside of these ranges can lose quality.  Several factors cause the formation of acidic soil ... be applied to turf that is wilted or frost-covered. The turf should be irrigated after application in ...

  6. Sorghum-Sudangrass as a Cover Crop in Ohio

    https://ohioline.osu.edu/factsheet/anr-0118

    more secondary roots than a corn plant Brown midrib available on some hybrids Cultural Traits Summer ... closer than 6 inches to the soil surface to ensure growth. Brown midrib hybrids are available for higher ... Frees phosphorus (P) and potassium (K) Good Compaction fighter Excellent Nematodes Very good Disease ...

  7. Fire Blight of Apples and Pears

    https://ohioline.osu.edu/factsheet/plpath-fru-22-0

    a common and very destructive bacterial disease of apples and pears (Figure 1). The disease is caused by ... (Rosaceae) family (Table 1). On apples and pears, the disease can kill blossoms, fruit, shoots, twigs, ... Crabapple Hawthorn Mountain Ash Pyracantha Quince Raspberry Spirea Disease Development Fire blight first ...

  8. Asian Tiger Mosquito

    https://ohioline.osu.edu/factsheet/ent-87

    Due to the potential to vector many diseases through nuisance blood-feeding, the Asian tiger mosquito ... pupa, and adult. Only adult females consume blood and transmit disease.  Figure 3: Asian tiger mosquito ... eggs near time of hatching. Photo: Dr. Henry D. Pratt, Centers for Disease Control and Prevention Egg ...

  9. Sudden Death Syndrome of Soybean

    https://ohioline.osu.edu/factsheet/AC-44

    tap root (Figure 2). This is best seen 1 to 3 days after a good rain. Brown stem rot (BSR) has very ... similar leaf symptoms to SDS. Plants infected by BSR have a tan to brown pith at or near the crown, and ... maturing varieties is thought to reduce the impact of this disease. Resistant Varieties Use high-quality ...

  10. Monitoring and Managing Spotted Wing Drosophila in Fruit Crops

    https://ohioline.osu.edu/factsheet/ent-0086

    small (less than 4 mm), its body is light yellowish brown, and it has red eyes. However, SWD has some ...

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