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Citrus canker. Citrus canker is a disease affecting Citrus species caused by the bacterium Xanthomonas ( X.axonopodis; X. campestris ). Infection causes lesions on the leaves, stems, and fruit of citrus trees, including lime, oranges, and grapefruit. While not harmful to humans, canker significantly affects the vitality of citrus trees, causing ...
Aster yellows is a chronic, systemic plant disease caused by several bacteria called phytoplasma. [1] The aster yellows phytoplasma (AYP) affects 300 species in 38 families of broad-leaf herbaceous plants, primarily in the aster family, as well as important cereal crops such as wheat and barley. Symptoms are variable and can include phyllody ...
Ralstonia solanacearum. Ralstonia solanacearum is an aerobic non-spore-forming, Gram-negative, plant pathogenic bacterium. R. solanacearum is soil-borne and motile with a polar flagellar tuft. It colonises the xylem, causing bacterial wilt in a very wide range of potential host plants. It is known as Granville wilt when it occurs in tobacco.
Bacterial soft rot on taro ( Colocasia esculenta) Bacterial soft rots are caused by several types of bacteria, but most commonly by species of gram-negative bacteria, Erwinia, Pectobacterium, and Pseudomonas. It is a destructive disease of fruits, vegetables, and ornamentals found worldwide, and affects genera from nearly all the plant families.
Ustulina deusta [1] Ustulina zonata [1] [anamorph] Collar and branch canker. Phomopsis theae. Collar rot. Rhizoctonia solani. Thanatephorus cucumeris [teleomorph] Copper blight. Guignardia camelliae.
Low winter temperatures. Split peel. Rapid filling of pulp of fruit. Taiwan marginal scorch. Unknown cause. "Segmented Banana". Chilling injury to fruit. One of the less common plantain diseases is exostentialis clittellus referred to by most plantain and banana farmers as "segmented banana". This is a result of the peel forming tiny inter ...
Rhizobacteria are root-associated bacteria that can have a detrimental (parasitic varieties), neutral or beneficial effect on plant growth. The name comes from the Greek rhiza, meaning root. The term usually refers to bacteria that form symbiotic relationships with many plants ( mutualism ). Rhizobacteria are often referred to as plant growth ...
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. Cucumber and melon plants are most susceptible ...