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Taphrina pruni is a fungal plant pathogen of blackthorn (Prunus spinosa) that causes the pocket or bladder plum gall, a chemically induced distortion of the fruit (sloes), producing swollen on one side, [1] otherwise deformed and flattened fruit gall without a stone. [2] The twigs on infected plants may also be deformed with small strap-shaped ...
The disease was first described in 1821 in Pennsylvania, but has spread across North America. While it was one of the most destructive diseases of plum and cherry trees in the late 19th century, today it is relatively well controlled in many cultivated areas and seen primarily in poorly managed orchards, or where strongly established, including ...
Plum pox, also known as sharka, is the most devastating viral disease of stone fruit from the genus Prunus. The disease is caused by the plum pox virus (PPV), and the different strains may infect a variety of stone fruit species including peaches , apricots , plums , nectarine , almonds , and sweet and tart cherries .
Prunus cerasifera is a species of plum known by the common names cherry plum and myrobalan plum. [3] It is native to Southeast Europe [ 4 ] [ 5 ] [ 6 ] and Western Asia , [ 3 ] [ 7 ] and is naturalised in the British Isles [ 4 ] and scattered locations in North America.
Leucostoma canker is a fungal disease that can kill stone fruit (Prunus spp.). [1] The disease is caused by the plant pathogens Leucostoma persoonii [2] and Leucostoma cinctum [3] and Cytospora leucostoma and Cytospora cincta [4] . The disease can have a variety of signs and symptoms depending on the part of the tree infected.
Chondrostereum purpureum is a fungal plant pathogen which causes Silver leaf disease of trees. It attacks most species of the rose family Rosaceae, particularly the genus Prunus. The disease is progressive and often fatal. The common name is taken from the progressive silvering of leaves on affected branches.
Prunus necrotic ringspot virus (PNRSV) is a plant pathogenic virus causing ring spot diseases affecting species of the genus Prunus, as well as other species such as rose (Rosa spp.) and hops (Humulus lupulus). [1] [2] PNRSV is found worldwide due to easy transmission through plant propagation methods and infected seed. [3]
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 the same group. A "stone" fruit (i.e., with a plum-type stone, such as plum, cherry, peach, apricot, almond) should be all right, and vice versa ...
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