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  2. Cronartium quercuum - Wikipedia

    en.wikipedia.org/wiki/Cronartium_quercuum

    Cronartium quercuum, also known as pine-oak gall rust is a fungal disease of pine (Pinus spp.) and oak (Quercus spp.) trees. Similar to pine-pine gall rust , this disease is found on pine trees but its second host is an oak tree rather than another pine.

  3. Marcescence - Wikipedia

    en.wikipedia.org/wiki/Marcescence

    All oak trees may display foliage marcescence, even species that are known to fully drop leaves when the tree is mature. [7] Marcescent leaves of pin oak (Quercus palustris) complete development of their abscission layer in the spring. [8] The base of the petiole remains alive over the winter. Many other trees may have marcescent leaves in ...

  4. Quercus alba - Wikipedia

    en.wikipedia.org/wiki/Quercus_alba

    Quercus alba, the white oak, is one of the preeminent hardwoods of eastern and central North America. It is a long-lived oak, native to eastern and central North America and found from Minnesota, Ontario, Quebec, and southern Maine south as far as northern Florida and eastern Texas. [3] Specimens have been documented to be over 450 years old. [4]

  5. Oak wilt - Wikipedia

    en.wikipedia.org/wiki/Oak_wilt

    Oak wilt is a devastating exotic disease, killing some trees rapidly in a single season. [7] Oak wilt is an important disease in urban areas where trees are highly valued. . The disease reduces property values because of the loss of trees and is economically costly to the property owner since they or the local government must pay for tree remo

  6. Should You Keep Watering Your Trees in Winter? What ... - AOL

    www.aol.com/keep-watering-trees-winter-gardeners...

    Trees with shallow root systems. In warmer climates where the soil may not stay frozen all winter, shallow-rooted trees such as dogwood, redbud, and Japanese maple are vulnerable to damage from ...

  7. Quercus emoryi - Wikipedia

    en.wikipedia.org/wiki/Quercus_emoryi

    Quercus emoryi is a wintergreen tree in the red oak group, retaining its leaves throughout the winter until new leaves are produced in spring. It is a large shrub or small tree from 5–17 metres (16–56 feet) tall.

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