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Halo blight of bean is a bacterial disease caused by Pseudomonas syringae pv. phaseolicola. 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.
This article is a list of diseases of common bean (Phaseolus vulgaris). Bacterial diseases. Bacterial diseases; Bacterial brown spot Pseudomonas syringae pv. syringae:
Phaseolus coccineus, known as runner bean, [2] scarlet runner bean, [2] or multiflora bean, [2] is a plant in the legume family, Fabaceae. Another common name is butter bean, [3] [4] [5] which, however, can also refer to the lima bean, a different species. It is grown both as a food plant and an ornamental plant.
However, the disease will soon spread down the runner and then infect the whole plant, causing it to shrivel and die. There is a diagnostic test for bacterial wilt that can be done in the field. The presence of the E. tracheiphila causes the sap to become a milky color and acquire a sticky consistency. If the stem is cut near the crown and the ...
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.
It is one of the most economically important legume genera. Five of the species have been domesticated since pre-Columbian times for their beans: P. acutifolius (tepary bean), P. coccineus (runner bean), P. dumosus (year bean), P. lunatus (lima bean), and P. vulgaris (common bean).
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 ...
It can also cause curly top in tomatoes, beans, cucurbits, and other crops. [5] This disease can be reduced if plants are planted in the shade because the beet leafhoppers and other insects like to feed on these plants in the sun. Curly top disease in spinach can be caused by Beet curly top virus, Pepper curly top virus, [6] or Spinach curly ...