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  1. Oak Wilt

    https://ohioline.osu.edu/factsheet/plpath-tree-02

    soil line. This is the best guarantee that the fungicide will be translocated throughout a tree, thus ... PLPATH-TREE-02 Agriculture and Natural Resources 02/04/2019 Pierluigi (Enrico) Bonello, Department ... spores, but it also causes a defensive reaction by the tree to stop the fungal spread by actively plugging ...

  2. Pruning and Care of Tree Wounds

    https://ohioline.osu.edu/factsheet/HYG-3311-09

    buildings, sidewalks, driveways, and power lines. Furthermore, ensuring that a tree is planted properly and ... PLPATH-TREE-06 Agriculture and Natural Resources 02/01/2012 Nathan M. Kleczewski, Pierluigi ... Bonello and Jim Chatfield, Department of Plant Pathology Maintaining a healthy looking, yet safe tree is ...

  3. Beech Bark Disease

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

    PLPATH-TREE-09 Agriculture and Natural Resources 07/31/2018 Esther Kibbe and Enrico Bonello, ... infested trees, either sporadically—especially in rough bark or cracks on the bole—then in increasing ... density, to the point that the tree can appear covered with them (Figure 2). The trees are usually not ...

  4. Diplodia Tip Blight of Two-Needled Pines

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

    PLPATH-TREE-03 Agriculture and Natural Resources 04/15/2016 Chris Wallis, Dennis J. Lewandowski, ... attacks mature trees that have been under stress from drought, root restriction or other planting site ... problems. It can also be a problem in young, rapidly growing nursery or Christmas tree plantings. This ...

  5. Mycorrhizae in Urban Landscapes

    https://ohioline.osu.edu/factsheet/plpath-tree-01

    PLPATH-TREE-01 Agriculture and Natural Resources 04/14/2016 Nathan M. Kleczewski, Dennis ... herbaceous plants and trees such as sweetgum and maple (Table 1). The fungi forming AM typically produce ... arbuscules (from the Latin word for “tiny tree”) (Figure 2). Sometimes AM fungi also produce storage organs ...

  6. Melampsora Rust

    https://ohioline.osu.edu/factsheet/plpath-tree-08

    PLPATH-TREE-08 07/07/2017 Charles Parise and Pierluigi (Enrico) Bonello Melampsora rust, also ... known as poplar leaf rust, is a foliar rust disease that has been a large problem for trees in the genus ... Populus and other trees in the family Salicaceae, including various poplars, cottonwoods, aspens and ...

  7. Thousand Cankers Disease

    https://ohioline.osu.edu/factsheet/plpath-tree-07-0

    PLPATH-TREE-07 Agriculture and Natural Resources 04/13/2016 Anna O. Conrad, Nancy J. Taylor and ... disease causing widespread mortality of walnut trees in the western United States. TCD was first detected ... symptoms of overall tree decline. See Table 1 for a list of trees in the walnut family that have been ...

  8. Dutch Elm Disease

    https://ohioline.osu.edu/factsheet/plpath-tree-04

    PLPATH-TREE-04 Agriculture and Natural Resources 04/15/2016 Chris Wallis, Dennis J. Lewandowski, ... disease because the first extensive research was done by pioneering Dutch women. American elm trees once ... dominated our urban landscapes as beautiful shade trees. Now, due to DED, they are no longer prominent. In ...

  9. Cedar-Apple Rust

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

    PLPATH-TREE-10 Agriculture and Natural Resources 12/18/2020 Jessica Burns, Graduate Research ... Rosaceous trees the following spring. Symptoms and Signs Primary host – redcedar/juniper Symptoms of the ... galls on the tree the following summer, which continue to grow throughout fall and winter. With rainfall ...

  10. Sudden Oak Death (aka Ramorum blight)

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

    PLPATH-TREE-05 Agriculture and Natural Resources 04/15/2016 Nathan M. Kleczewski, Dennis ...

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