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  1. Bitter Rot of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-20

    rot is a common fruit rotting disease of apple (and pear) that occurs in all states where apples and ... disease on peach. Glomerella cingulata can also cause a leaf spot and canker on apple, although these ... forms of the disease are not common in Ohio. Disease Development and Symptoms Figure 1. Bitter rot on ...

  2. 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, ...

  3. 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 ...

  4. Sanitation and Phytosanitation (SPS)

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

    disease including the reasons why plants get sick and how to control or manage healthy plants.     Figure ... 1. Inspection starts in the field. Many growers scout fields for plant diseases during the growing ... of plant pests and diseases. They may include (i) requiring products to come from areas free of ...

  5. 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 ...

  6. Guidelines for Choosing a Soil Analytical Laboratory

    https://ohioline.osu.edu/factsheet/HYG-1133

    (lbs/ac), parts per million (ppm), or pounds per 1,000 square feet (usually reserved for turf and lawn ... Emeritus, School of Environment and Natural Resources, The Ohio State University Growers, landscapers, turf ... Testing Is an Excellent Investment for Garden, Lawn, and Landscape Plants, and Commercial Crops. Ohio ...

  7. Powdery Mildew of Greenhouse-grown Lettuce

    https://ohioline.osu.edu/factsheet/anr-56

    Agriculture and Natural Resources, Putnam County Powdery mildew is a common fungal disease encountered in ... greenhouse production of lettuce. Many growers struggle with controlling the disease on lettuce crops grown ... as shown in Figure 1. Disease severity depends upon lettuce type and variety, age and overall ...

  8. Phytophthora Root and Crown Rot of Fruit Trees

    https://ohioline.osu.edu/factsheet/plpath-fru-06

    Pathology Phytophthora root and crown rots (sometimes called collar rot) are common and destructive diseases ... root rot. Symptoms Diseased trees are commonly found in poorly drained areas of the orchard or yard. ... Heavy, wet soils that remain saturated for extended periods of time are required for disease development. ...

  9. Powdery Mildew of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-37

    important disease of grapes worldwide. The disease generally is considered less economically important in ... Ohio than black rot or downy mildew. However, uncontrolled, the disease can be devastating on ... the fungus. Causal Organism and Disease Cycle Figure 2. Grape leaf severely infected with powdery ...

  10. Rust Diseases of Wheat

    https://ohioline.osu.edu/factsheet/plpath-cer-12

    (330-263-3842) There are three different rust diseases that affect wheat—leaf rust (also known as brown rust or ... given year, any of these diseases can infect and cause substantial yield losses if not adequately ... level of rust severity. High levels of disease before or during flowering usually have the greatest ...

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