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Laminated root rot also known as yellow ring rot is caused by the fungal pathogen Phellinus weirii. Laminated root rot is one of the most damaging root disease amongst conifers in northwestern America and true firs , Douglas fir , Mountain hemlock , and Western hemlock are highly susceptible to infection with P. weirii .
Root rot is a common disease of Florida green beans and can reduce crop yields there by up to 75% if untreated. [96] It was not until the 1950s that an effective fungicide was found to control root rot. Trials in Florida in the 1950s showed that applications of PCNB were able to reduce incidence to 3%. [98] PCNB is still the primary treatment ...
A dense cluster of fruit bodies growing on a rotting stump. Several studies have shown that the spread of Armillaria root rot in eucalypt forests is associated with infected stumps that remain after an area has been logged. [28] [29] [30] Armillaria luteobubalina can persist on these stumps, using them as a source of food for up to 25 or more ...
Armillaria root rot is a fungal root rot caused by several different members of the genus Armillaria. The symptoms are variable depending on the host infected, ranging from stunted leaves to chlorotic needles and dieback of twigs and branches. However, all infected hosts display symptoms characteristic of being infected by a white rotting ...
Later, it was found to be linked to conifer disease by Robert Hartig in 1874, and was renamed Fomes annosus by H. Karsten. Its current name of Heterobasidion annosum was given by Brefeld in 1888. Heterobasidion annosum causes one of the most destructive diseases of conifers. [1] The disease caused by the fungus is named annosus root rot.
Red ring rot is common in North America. The pathogen Porodaedalea pini is widely spread in the temperate zone in the Northern Hemisphere. [4] It infects a wide range of coniferous trees, including jack pine, lodgepole pine, Sitka and white spruce, Douglas-fir, balsam and true fir, western hemlock, and tamarack.
Since there are multiple species of Phytophthora that are capable of causing disease on orchids, classification only to the genus level is required for proper prescription of disease management techniques. [6] Crown rot or root rot of strawberries is a common example of diseases of fruit crops caused by P. cactorum.
Butt rot is a disease of plants, mostly trees, caused by fungi. The fungus attacks the moist, poorly protected undersurface of tree trunk's thickest part (the "butt" above the root, as opposed to "top"), where the end of the stem makes contact with the soil. It may affect the roots as well, causing a disease known as root rot. It then moves up ...
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