Search results
Results from the WOW.Com Content Network
Dibotryon morbosum is a fungus that affects the genus Prunus. Included in this genus are multiple species of trees and shrubs, such as: Dibotryon morbosum infects are Prunus serotina (wild cherry trees), Prunus persica (peach trees), Prunus domestica (plum trees), and Prunus cerasus (sour cherry trees). [3]
The Black Bullace is the common "wild" bullace of woods in England, recognisable by its small, round black or dark purple fruit. [9] It is sometimes classified as insititia var. nigra. [10] It can be quite astringent until very ripe, or subject to a slight frost; a larger variety known as the "New Black Bullace" was later developed from it.
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 ...
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.
Shot hole disease is a major concern of the stone fruit industry. It is estimated that 80% of the California almond crop may be infested with shot hole disease, resulting in a potential yield loss of 50-75%. [3] In the 1930s, it was found that applications of Bordeaux mixture reduces shot hole disease on peaches from 80% to 9%.
Prunus × cistena (purple leaf sand cherry), a hybrid of Prunus cerasifera and Prunus pumila, the sand cherry, also won the Award of Garden Merit. [16] [17] [18] These purple-foliage forms (often called 'purple-leaf plum'), also have dark purple fruit, which make an attractive, intensely coloured jam. They can have white or pink flowers.
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 ...
The fruit is a drupe, 4–7 cm in diameter with yellow-pink flesh. The skin can be yellow, red, or sometimes green or purple, and has a powdery coating. The shape of the drupe is spherical, egg-shaped, or conical, and it is 3.5–5 cm in diameter, though it can reach 7 cm in diameter in horticultural forms. [5] They fruit from July to August.