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Alternaria solani is a fungal pathogen that produces a disease in tomato and potato plants called early blight. The pathogen produces distinctive "bullseye" patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato. Despite the name "early", foliar symptoms usually occur on older leaves. [3]
Early blight, caused by Alternaria solani, is also often called "potato blight". Late blight was a major culprit in the 1840s European, the 1845–1852 Irish, and the 1846 Highland potato famines. The organism can also infect some other members of the Solanaceae.
Potato mop-top virus (spraing of tubers) genus Furovirus, Potato mop-top virus (PMTV) Potato rugose mosaic: genus Potyvirus, Potato virus Y (PVY, strains O, N and C) Potato stem mottle (spraing of tubers) genus Tobravirus, Tobacco rattle virus (TRV) Potato spindle tuber: Potato spindle tuber viroid (PSTVd) Potato yellow dwarf virus
In the early 1800s, a strain of potato blight (Phytophthora infestans) known as HERB-1 began to spread in the Americas, especially Central and North America, destroying many crops. The blight spread to Europe in the 1840s where, because of an extreme lack of genetic diversity, the potato crops were even more susceptible. In Northern Europe ...
Bacterial seedling blight of rice (Oryza sativa), caused by pathogen Burkholderia plantarii [4] Early blight of potato and tomato, caused by species of the ubiquitous fungal genus Alternaria; Leaf blight of the grasses e.g. Ascochyta species [5] and Alternaria triticina that causes blight in wheat [6]
Alternaria alternata – Causes early blight of potato, leaf spot disease in Withania somnifera [9] Alternaria allii - causes onion leaf blight; Alternaria arborescens – causes stem canker of tomato; Alternaria arbusti – causes leaf lesions on Asian pear; Alternaria blumeae – causes lesions on Blumea aurita
This variety is a mutation (or sport) of the cultivar 'Burbank's Seedling' that was selected by the plant breeder Luther Burbank in 1873. The known lineage of Russet Burbank began in 1853 when Chauncey E. Goodrich imported the Rough Purple Chili from South America in an attempt to add diversity to American potato stocks which were susceptible to late blight.
Rhododendron ponticum showing classic symptoms of Phytophthora kernoviae in the UK. Phytophthora (from Greek φυτόν (phytón), "plant" and φθορά (phthorá), "destruction"; "the plant-destroyer") is a genus of plant-damaging oomycetes (water molds), whose member species cause economic losses on crops worldwide, as well as environmental damage in natural ecosystems.