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  2. Fire blight - Wikipedia

    en.wikipedia.org/wiki/Fire_blight

    In southern Germany apple and pear trees have been a part of the landscape for a long time, and are difficult to protect. The decline of apple and pear trees from their landscape can be expensive to replace and could have a negative effect on tourism. In the long-run, fire blight is a very important factor of economy and society. [citation needed]

  3. List of apple diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_apple_diseases

    Apple dwarf (Malus platycarpa) Apple stem pitting virus (ASPV) (? not US/CAN) Apple flat apple genus Nepovirus, Cherry rasp leaf virus (CRLV) Apple mosaic genus Ilarvirus, Apple mosaic virus (ApMV) genus Ilarvirus, Tulare apple mosaic virus (TAMV) Apple stem grooving = Apple decline of Virginia crab genus Capillovirus, Apple stem grooving virus ...

  4. How to Prune an Apple Tree So It Produces Fruit for ... - AOL

    www.aol.com/prune-apple-tree-produces-fruit...

    To find out the best and safest way to prune apple trees, we chatted with an expert arborist and the owner of an orchard. Both shared their tips for pruning apple trees to keep them happy and ...

  5. Gymnosporangium juniperi-virginianae - Wikipedia

    en.wikipedia.org/wiki/Gymnosporangium_juniperi...

    The wind carries the microscopic spores to infect apple leaves, blossoms, fruit and young twigs on trees within a radius of several miles of the infected tree. On other species of juniper more common in landscaping and bonsai, the sizes of the infections are reduced. Early in the infection, the galls are small bumps on the woody portions of the ...

  6. Flora of the Sierra Nevada alpine zone - Wikipedia

    en.wikipedia.org/wiki/Flora_of_the_Sierra_Nevada...

    Above the tree line, extreme winds preclude tree-like growth. [6]: 17 Constant winds hitting the plants limits their size and flattens their shape. [10]Small size or dwarfism is therefore an adaptive feature to the extremes, and most alpine plants are just a few inches tall.

  7. Apple scab - Wikipedia

    en.wikipedia.org/wiki/Apple_scab

    Apple scab is a common disease of plants in the rose family that is caused by the ascomycete fungus Venturia inaequalis. [1] While this disease affects several plant genera, including Sorbus, Cotoneaster, and Pyrus, it is most commonly associated with the infection of Malus trees, including species of flowering crabapple, as well as cultivated apple.

  8. Specific replant disease - Wikipedia

    en.wikipedia.org/wiki/Specific_replant_disease

    It is good organic rotation practice not to follow "like with like" and this rule applies to long lived trees as much as annual vegetables. In the case of temperate fruit trees, the "pomes and stones" rule for rotation should be observed- don't follow a "pome" fruit (with an apple-type core—apples, pears, medlar , quince ) with a tree from ...

  9. California coastal salt marsh - Wikipedia

    en.wikipedia.org/wiki/California_coastal_salt_marsh

    California's coastal salt marsh is a wetland plant community that occurs sporadically along the Pacific Coast from Humboldt Bay to San Diego. This salt marsh type is found in bays, harbors, inlets, and other protected areas subject to tidal flooding .

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    common problems with apple trees in california zone 1 and 2 tfl water levels