Site

Search results

  1. Sudden Oak Death (aka Ramorum blight)

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

    blight) is a disease caused by the oomycete pathogen Phytophthora ramorum that was discovered in ... central-coastal California in 1995. This pathogen had been known to cause disease in nurseries and gardens since ...  Sporangia of  P. ramorum. Photo by UC Berkeley. The disease causes extensive mortality on tanoak ...

  2. 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 ...

  3. 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 ...

  4. Crop Tree Management: A Tool to Help You Achieve Your Woodland Goals

    https://ohioline.osu.edu/factsheet/f-50

    more insect and disease resistant, grow faster, and produce additional landowner benefits. In ...

  5. Brown Marmorated Stink Bug

    https://ohioline.osu.edu/factsheet/ent-90

    The brown marmorated stink bug, Halyomorpha halys, is a pest that was accidentally introduced into the ... marble-like coloration (Figure 1). The brown marmorated stink bug feeds on fruits, seeds, stems, and leaves of ... coloration on the adult of the brown marmorated stink bug. Photo: A. Raudenbush, The Ohio State University ...

  6. 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 ...

  7. Phomopsis Cane and Leaf Spot of Grape

    https://ohioline.osu.edu/factsheet/plpath-fru-47

    Pathology, The Ohio State University For many years, the Eastern grape industry recognized a disease called ... that the dead-arm disease was actually two different diseases that often occur simultaneously. ... dieback are distinctly different diseases, and their control recommendations vary greatly. Disease ...

  8. 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 bald cypress has felt the ... bite of the saw from new homeowners who notice a completely brown-leaved tree in their new landscape in ...

  9. Brown County’s Forest Economy

    https://ohioline.osu.edu/factsheet/F-90-13

    State University Extension, Adams/Brown/Highland Counties Brown County contains 490 square miles ... Figure 1. Forest industries contribute 1.77% to Brown County's economy [2,3]. The land resources of ... Brown County provide many economic benefits. The county's 1,490 agricultural farms produce ...

  10. Plants Get Sick Too!

    https://ohioline.osu.edu/factsheet/plpath-gen-1

    An Introduction to Plant Diseases PLPATH-GEN-1 Agriculture and Natural Resources 02/01/2017 Sarah ... study of plant disease including the reasons why plants get sick and how to control or manage healthy ... plants. Why Worry About Plant Diseases?     Figure 1. Injury: Ice damage. The weight of the ice causes the ...

Pages