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  1. Necrotic Leaf Blotch of Golden Delicious Apples

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

    Pathology Necrotic leaf blotch is a common but minor disease that appears to be restricted to the Golden ... Delicious cultivar of apples and its sports. The disease is a physiological disorder and has been observed ... disorder varies from orchard to orchard and, more importantly, from year to year. The disease is fairly ...

  2. Soybean Rust

    https://ohioline.osu.edu/factsheet/plpath-soy-2

    Soybean rust (SBR), caused by the fungus Phakopsora pachyrhizi, is one of the most important diseases of ... favorable conditions and can cause severe defoliation. In regions where the disease has been reported, yield ... black and are produced in old lesions, however, their contribution to the disease cycle is unknown at ...

  3. Spur Blight of Red Raspberries

    https://ohioline.osu.edu/factsheet/plpath-fru-28

    raspberries. Spur blight has been considered to be a serious disease of red raspberry; however, recent studies ... bearing side branches. In addition, berries produced on diseased canes may be dry, small, and seedy. ... body (perithecia). Leaflets sometimes become infected and show brown, wedge-shaped diseased areas, with ...

  4. Phytophthora Root Rot of Raspberry

    https://ohioline.osu.edu/factsheet/plpath-fru-14

    additional unidentified Phytophthora species have been implicated in this disease. The disease occurs on red, ... commonly on red raspberries. The disease has been reported to occur on blackberries in Kentucky. ... Phytophthora root rot can be an extremely destructive disease on susceptible cultivars where conditions favor ...

  5. Viral Diseases of Plants

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

    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 ... viral diseases spread. In fact, plant virologists use grafting and budding procedures to transmit and ...

  6. Pruning Erect Blackberries in the Home Garden

    https://ohioline.osu.edu/factsheet/hyg-1431

    previous year. Once fruiting is completed and frost has occurred, all primocanes can be pruned or mowed ... floricanes before the fruiting season unless damaged or diseased. When the fruiting season is over, use ... pruning blackberries takes time and practice. Contact your county Extension educator for updated ...

  7. Biosecurity Fundamentals for Extension Personnel

    https://ohioline.osu.edu/factsheet/vme-5

    Medicine Original authors: Dr. Gary L. Bowman and Dr. William P. Shulaw The prevention of livestock disease ... early 2001 because of Foot and Mouth Disease (FMD), and recent outbreaks of avian and swine influenza in ... disease prevention procedures because they serve as the primary resource of information for their ...

  8. Red Stele Root Rot of Strawberry

    https://ohioline.osu.edu/factsheet/plpath-fru-34

    disease has become a serious problem facing strawberry production in the northern two-thirds of the United ... States. The disease is most destructive in heavy clay soils that are saturated with water during cool ... stele root rot. Susceptible variety on right, and resistant variety on left. Normally, the disease is ...

  9. Peach Canker

    https://ohioline.osu.edu/factsheet/plpath-fru-25

    Pathology Peach canker is a fungus disease common on apricot, prune, plum, and sweet cherry trees as well as ... on peach trees. The disease is common in peach orchards and is a frequent cause of limb dying and ... fungi that cause this disease enter the plant through wounds. Infection results in dead and weakened ...

  10. Brown Rot of Stone Fruits

    https://ohioline.osu.edu/factsheet/plpath-fru-29

    Pathology Brown rot is a common and destructive disease of peach and other stone fruits (plum, nectarine, ... twigs), and small branches. The disease is most important on fruits just before ripening, during and after ... harvest. Under favorable conditions for disease development, the entire crop can be completely rotted on ...

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