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Butternut canker is a lethal disease of butternut trees, and has no cure.. A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticulture.
The disease can also be spread by contaminated equipment, and by transport of infected or apparently healthy plants. Due to latency of the disease, a plant may appear to be healthy, but actually be infected. Citrus canker bacteria can enter through a plant's stomata or through wounds on leaves or other green parts. In most cases, younger leaves ...
There are only a few ways to manage disease caused by N. cinnabarina. One way to control the spread of this fungus is pruning branches of trees that have cankers. N. cinnabarina is a saprophyte and mainly resides in and on dead tissue, but as the fungus progresses, it invades living tissue and causes further disease. Trimming the areas so that ...
Eutypella canker is a plant disease caused by the fungal pathogen Eutypella parasitica. This disease is capable of infecting many species of maple trees and produces a large, distinguishable canker on the main trunk of the tree. Infection and spread of the disease is accomplished with the release of ascospores from perithecia.
Fusarium circinatum is a fungal plant pathogen that causes the serious disease pitch canker on pine trees and Douglas firs (Pseudotsuga menziesii).The most common hosts of the pathogen include slash pine (Pinus elliottii), loblolly pine (Pinus taeda), Monterey pine (Pinus radiata), Mexican weeping pine (Pinus patula), and Douglas fir. [1]
Development of the disease occurs throughout the year. The disease starts with local lesions, but becomes systematic when it affects the crown of the tree, usually after several years of infection. [1] This is a bacterium so the pathogen reproduces by binary fission. The pathogen is spreading rapidly across western Europe though movement mostly ...
Thousand cankers disease (TCD) is a recently recognized disease of certain walnuts (Juglans spp.). The disease results from the combined activity of the walnut twig beetle ( Pityophthorus juglandis ) and a canker producing fungus , Geosmithia morbida . [ 1 ]
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).