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Common Bean Diseases (Fact Sheets and Information Bulletins), The Cornell Plant Pathology Vegetable Disease Web Page; Common Names of Plant Diseases, The International Society for Molecular Plant-Microbe Interactions (in Portuguese) Common bean diseases, EMBRAPA (in Portuguese) Main common bean diseases and their control, EMBRAPA with photos
Colletotrichum lindemuthianum is a fungus which causes anthracnose, or black spot disease, of the common bean plant (Phaseolus vulgaris).It is considered a hemibiotrophic pathogen because it spends part of its infection cycle as a biotroph, living off of the host but not harming it, and the other part as a necrotroph, killing and obtaining nutrients from the host tissues.
Also in Pakistan, Mucor fragilis has been causing rot in seychelles pole beans. [2] This is the first time this fungus has been seen on pole beans and is causing urgency to control this fungus so it does not spread. [2] In China, Mucor fragilis has been found on one of China's highly prized medicinal plants (Radix pseudostellariae). [4]
Halo blight’s pathogen is a gram-negative, aerobic, polar-flagellated and non-spore forming bacteria. This bacterial disease was first discovered in the early 1920s, and rapidly became the major disease of beans throughout the world. The disease favors the places where temperatures are moderate and plentiful inoculum is available. [1]
Bush varieties form erect bushes 20–60 centimetres (8–20 inches) tall, while pole or running varieties form vines 2–3 metres (7–10 feet) long. All varieties bear alternate, green or purple leaves, which are divided into three oval, smooth-edged leaflets, each 6–15 cm (2–6 in) long and 3–11 cm (1–4 in) wide.
Bacterial wilt is a complex of diseases that occur in plants such as Cucurbitaceae and Solanaceae (tomato, common bean, [1] [2] etc.) and are caused by the pathogens Erwinia tracheiphila, a gram-negative bacterium, or Curtobacterium flaccumfaciens pv. flaccumfaciens, a gram-positive bacterium.
Bean yellow mosaic virus is a plant pathogenic virus [1] in the genus Potyvirus and the virus family Potyviridae. Like other members of the Potyvirus genus, it is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein.
Finally, all the leaves coalesce, leaving just the trunk of the palm “standing like a telephone pole”. [6] Palms under 10 years of age are rarely affected by cadang-cadang; the incidence of disease increases until about 40 years of age and then plateaus. [21] "No recovery has ever been observed, and the disease is always fatal". [4]