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Black rot, caused by the bacterium Xanthomonas campestris pv. campestris ( Xcc ), is considered the most important and most destructive disease of crucifers, infecting all cultivated varieties of brassicas worldwide. [ 1][ 2] This disease was first described by botanist and entomologist Harrison Garman in Lexington, Kentucky, US in 1889. [ 3]
Rust (fungus) Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus Puccinia, are currently accepted. [3] Rust fungi are highly specialized plant pathogens with several ...
For the whitefly-to-plant life cycle, there is a 12-hour window, after the insect picks up the AbMV, during which the virus cannot be transmitted. [3] This virus is transmitted to plants that the silverleaf whitefly feeds on after this time period. [3] Another mode for the AbMV to spread is manual transmission.
Plant disease. Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus -like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. [2]
Plant pathology or phytopathology is the scientific study of plant diseases caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Plant pathology involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance ...
Alternaria solani. 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 ...