Site

Search results

  1. Ohio’s Natural Enemies: Lacewings

    https://ohioline.osu.edu/factsheet/ent-72

    of lacewings commonly found in Ohio: green lacewings (Family Chrysopidae) and brown lacewings (Family ... Brown lacewings are often brown to gray in color with hairy bodies, and are often confused with moths. ... Brown lacewings, however, may provide valuable pest management services as larvae and adults.  Photo ...

  2. X-Disease (Mycoplasma disease of peaches and nectarines)

    https://ohioline.osu.edu/factsheet/plpath-fru-13

    Pathology X-disease has been diagnosed in several peach orchards in northern Ohio. Once the disease is ... established in an area or orchard, it can be very destructive. The disease has been reported to occur ... X-disease corresponds to the range of distribution of the wild chokecherry, which is a major reservoir of ...

  3. Sooty Blotch and Fly Speck of Apple

    https://ohioline.osu.edu/factsheet/plpath-fru-41

    Pathology Sooty blotch and fly speck are two different diseases. Both diseases are widespread throughout the ... of near-mature fruit. The discoloration is superficial, and while neither disease actually damages ... the fruit, the presence of disease reduces the grade and market value of the fruit. Although all apple ...

  4. Hops Downy Mildew

    https://ohioline.osu.edu/factsheet/plpath-fru-49

    destructive disease of hops (Humulus lupulus) in the Midwest and Northeastern United States. Downy mildew is ... mild temperatures. The disease is systemic and can cause significant yield and quality losses annually. ... Farm. Disease Development and Symptoms The downy mildew pathogen survives the winter in dormant buds, ...

  5. Fusarium Head Blight or Head Scab of Wheat, Barley and other Small Grain Crops

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

    one of the most important diseases of wheat, oats, barley, spelt and other small grain crops. However, ... scab is not only a disease of small grains, it also affects many other grass species including foxtail, ... quackgrass, crabgrass and bluegrass. In addition, scab is not the only disease caused by F. graminearum. If ...

  6. 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 ... scab. Small (¼ inch), round, and yellowish-green to yellowish-brown spots develop on the underside of ...

  7. Late Leaf Rust of Red Raspberries

    https://ohioline.osu.edu/factsheet/plpath-fru-17

    Department of Plant Pathology Late leaf rust is a potentially serious disease of red raspberries. Late leaf ... rust does not affect black raspberries or blackberries. The disease can affect leaves, canes, ... disease. However, losses due to fruit infection have reached 30 percent in commercial red raspberry ...

  8. Orange Rust of Brambles

    https://ohioline.osu.edu/factsheet/plpath-fru-30

    fungus Arthuriomyces peckianus. Orange rust is the most important of several rust diseases that attack ... the canes are stunted. As the disease develops, the edges and lower surface of infected leaves (Figure ... and bright orange (Figure 2C). This bright orange, rusty appearance is what gives the disease its ...

  9. 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 ...

  10. 20 Questions on Plant Diagnosis

    https://ohioline.osu.edu/factsheet/plpath-gen-3

    study of plant disease including the reasons why plants get sick and how to control or manage healthy ... colors ranging from spun gold to reddish brown, followed by leaf drop. Many a baldcypress has felt the ... bite of the saw from new homeowners who notice a completely brown-leaved tree in their new landscape in ...

Pages