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Bacterial blight of cotton is a disease affecting the cotton plant resulting from infection by Xanthomonas axonopodis pathovar malvacearum (Xcm) a Gram negative, motile rod-shaped, non spore-forming bacterium with a single polar flagellum
Bacterial diseases; Bacterial blight of cotton: Xanthomonas citri subsp. malvacearum: Crown gall Agrobacterium tumefaciens: Lint degradation Erwinia herbicola ...
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]
Symptoms of diseases caused by Xanthomonas [1] Xanthomonas species can cause bacterial spots and blights of leaves, stems, and fruits on a wide variety of plant species. [15] Pathogenic species show high degrees of specificity and some are split into multiple pathovars, a species designation based on host specificity.
Uncontrolled bacterial blight has been shown to cause yield losses up to 20%. [68] Symptoms include small, dry, and brittle yellowish-brown spots on the plant and stalks covered in bacterial ooze. [69] The primary treatment of bacterial blight is applications of copper before the crop is fully mature. [69]
A leaf spot is a limited, discoloured, diseased area of a leaf that is caused by fungal, bacterial or viral plant diseases, or by injuries from nematodes, insects, environmental factors, toxicity or herbicides. These discoloured spots or lesions often have a centre of necrosis (cell death). [1]
Once a plant is infected, the bacteria spread through the xylem vessels from the area of infection to the main stem, and the entire plant wilts and dies. Initial symptoms may include the wilting of single leaves and smaller stems. Infected plants may produce a creamy white bacterial ooze when cut.
Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight. A key characteristic of this pathogen is its ability to produce black resting structures known as sclerotia ...