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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 main symptom of Dibotryon morbosum is its “knot-like” gall structure. These knots can vary ...
Peach tree leaves displaying various stages of the shot hole disease: brown spots on the leaf with conidium holders in the middle (center) that eventually fall off, leaving BB-sized holes behind (left) Shot hole disease of apricot leaves. The fungal pathogen Wilsonomyces carpophilus affects members of the Prunus genera. Almond, apricot ...
Bacterial diseases; Bacterial canker Bacterium (unidentified) Dieback and leaf scorch: Xylella fastidiosa [1] [2] Fungal diseases. Fungal diseases; Annosum root rot
Brown rot blossom blight and fruit rot Monilinia fructicola Monilinia laxa. Cercospora leaf spot Cercospora circumscissa Cercospora rubrotincta. Ceratocystis canker Ceratocystis fimbriata. Constriction canker = Fusicoccum canker, Phomopsis shoot blight Phomopsis amygdali = Fusicoccum amygdali. Cytospora canker Leucostoma persoonii
The factors that determine whether or not cankers become active are not well known, but it is thought that cankers found on larger or older tree limbs are more likely to become active. [6] Honeybees and other insects are attracted to this ooze and can spread bacteria to susceptible tissue, such as flower stigmata. [7]
Significant variation in symptoms is seen between diseases, though some symptoms are expressed across species. On a macroscopic scale, plants infected with a X. fastidiosa-related disease exhibit symptoms of water, zinc, and iron deficiencies, [27] manifesting as leaf scorching and stunting in leaves turning them yellowish-brown, gummy substance around leaves, [27] fruit reduction in size and ...
Pages in category "Bacterial tree pathogens and diseases" The following 20 pages are in this category, out of 20 total. This list may not reflect recent changes .
Cherries and European plums originated in Europe, although the Japanese plum originated in China. [2] Trees exposed to cold in autumn and early spring can develop cankers under the bark of the trunk or branches. Cankers are usually associated with the production of amber-coloured gum that contains bacteria and oozes on to the outer bark.