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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 ...
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]
A common technique used in the past is thermotherapy. [1] Since many viruses are sensitive to elevated temperatures, utilizing heat treatment in a controlled growth chamber will deplete the symptoms for the following years. [1] A study by Hunter et al. 1959 was conducted, where buds from virus infected trees were grafted onto healthy trees.
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 ...
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USDA PLANTS Database: California State Noxious Weeds List; Cal-IPC: California Invasive Plant Council homepage + information. Cal-IPC: CalWeedMapper; California Native Plant Society—CNPS: Invasive Weeds + links. UC IPM" Invasive Plants of California — managing invasive plants. PlantRight.org: address and stop sale of invasive garden plants ...
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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.