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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 pear slug is an important pest that eats leaves of cherry, pear, and plum trees, leaving behind a skeleton of veins. The larvae cover themselves in green slime, making themselves unpalatable to predators. The larva molt between five and eight times before being fully grown. [1]
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 ...
Symptoms on orchard trees can include death of buds and roots, reduced tree survival and uniformity, [8] and increased susceptibility to winter injury. [2] Some common symptoms also include necrotic “shot holes” in leaves or rugosity and mosaic symptoms. [9]
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 is a genus of flowering trees and shrubs from the family Rosaceae, which includes plums, cherries, peaches, nectarines, apricots and almonds (collectively stonefruit).The genus has a cosmopolitan distribution, [4] being native to the temperate regions of North America, the neotropics of South America, and temperate and tropical regions of Eurasia and Africa, [5] There are about 340 ...
Viral diseases; Bare twig and unfruitfulness genus Nepovirus, Strawberry latent ringspot virus. genus Tobamovirus, Cucumber green mottle mosaic virus. Line pattern & Necrotic ring spot genus Ilarvirus, Prunus necrotic ringspot virus (PNRSV) Peach mosaic genus Trichovirus, Cherry mottle leaf virus (CMLV) Plum pox (= Sharka)
Leucostoma canker symptoms differ depending on where on the tree infection takes place. [5] Discoloration occurs in sunken patches on infected twigs. Light and dark concentric circles of narcotic tissue characterize this symptom, occurring near buds killed by cold or on leaf scars. Infections on the nodes are seen 2–4 weeks after bud break. [6]