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  1. 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 ...

  2. Verticillium Wilt of Strawberry

    https://ohioline.osu.edu/factsheet/plpath-fru-32

    disease development may occur when soil temperature is from 70 to 75 degrees F (21 to 24 degrees C). Many ... differentiate from those caused by other root infecting fungi. Isolation from diseased tissue and culturing the ... fungus in the laboratory are necessary for positive disease identification. On infected strawberry ...

  3. Black Knot of Plums and Cherries

    https://ohioline.osu.edu/factsheet/plpath-fru-31

    Pathology Black knot of plums and cherries is a widespread and serious disease throughout the United States. ... Black knot is a common disease in Ohio on wild plums and cherries and in home orchards where pruning and ... twigs. The disease becomes progressively worse during each growing season and unless effective control ...

  4. Cane Blight of Raspberries

    https://ohioline.osu.edu/factsheet/plpath-fru-10

    Pathology Cane blight is one of the more damaging diseases of raspberries. The disease is most common on ... black raspberries but also occurs on red and purple varieties. The disease occasionally occurs on ... The cankers enlarge and extend down the cane or encircle it, causing lateral shoots above the diseased ...

  5. Testing Protocols for Diseases Surveillance in Poultry

    https://ohioline.osu.edu/factsheet/vme-32

    industry relies heavily on surveillance to keep certain diseases out of the population. Avian Influenza ... (AI), Avian Mycoplasma and Salmonella are examples of such diseases. Surveillance is an intricate and ... complicated process that can be different in different diseases and in different situations. In this article ...

  6. Leather Rot of Strawberry

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

    it is considered a minor disease of little economic importance. However, excessive rainfall during ... development. Where the disease has been a problem in Ohio, infection of green fruit is common. On green ... berries, diseased areas may be dark brown or natural green outlined by a brown margin. As the rot spreads, ...

  7. Diplodia Tip Blight of Two-Needled Pines

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

    diseases in the urban environment. It affects many common landscape pines in the Midwest, including ... disease is found throughout the Great Plains, Midwest, Northeast, and California. Figure 1. Typical tip ... blight symptoms on Austrian pine. Symptoms and Signs This disease is characterized by the blight, or ...

  8. Scab of Peach, Nectarine, Plum, and Apricot

    https://ohioline.osu.edu/factsheet/plpath-fru-39

    The disease affects fruit, leaves and young green twigs. Scab is most common in home orchards where ... by the scab fungus. The disease is usually more serious in low-lying, moist, shady areas where air ... the leaf. Diseased leaf tissue may dry up and drop out, leaving “shot-holes.” If the season is wet, ...

  9. Gray Leaf Spot of Corn

    https://ohioline.osu.edu/factsheet/plpath-cer-05

    prevalent foliar fungal diseases of corn in the state of Ohio ever since it was first reported in parts of ... into no-till fields and conditions are favorable for infection. Reports of high disease severity are ... humidity favor infect and disease development and spread. Under these conditions, yield losses ranging from ...

  10. Corn Hybrid Reactions to Gray Leaf Spot In Ohio, 1995-1996

    https://ohioline.osu.edu/factsheet/agf-130

    Horticulture and Crop Science Gray leaf spot (GLS) is a foliar disease of corn caused by the residue-borne ... fungus, Cercospora zeae-maydis. This disease has become a widespread problem affecting corn production in ... 1995 enhanced the spread of the disease throughout most of the state and resulted in statewide yield ...

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