DISEASE: Bacterial seedling blight
HOST: Rice
Dead and light brown, infected seedlings in nursery tray.
Bacterial seedling blight | Rice
DISEASE: Bacterial seedling blight
HOST: Rice (Oryza sativa)
PATHOGEN: Burkholderia glumae
PATHOGEN SYNONYM: Pseudomonas glumae
SOURCE: K. Azegami, M. Goto
DISEASE: Bacterial seedling blight
HOST: Rice
Brown, desiccated seedlings in nursery exhibiting basal chlorosis and withering of second and third leaves.
Bacterial seedling blight | Rice
DISEASE: Bacterial seedling blight
HOST: Rice (Oryza sativa)
PATHOGEN: Burkholderia plantarii
PATHOGEN SYNONYM: Pseudomonas plantarii
SOURCE: H. Honma, M. Goto
DISEASE: Bacterial seedling blight
HOST: Rice
Dead seedlings in half of nursery tray. Symptoms are basal chlorosis and withering of second and third leaves. Infected seedlings become reddish brown and desiccated in time.
Bacterial seedling blight | Rice
DISEASE: Bacterial seedling blight
HOST: Rice (Oryza sativa)
PATHOGEN: Burkholderia plantarii
PATHOGEN SYNONYM: Pseudomonas plantarii
SOURCE: K. Azegami, M. Goto
DISEASE: Bacterial seedling blight
HOST: Rice
Basal chlorosis and withering of second and third leaves. Seedlings become reddish brown with a dry appearance over time. Root growth is retarded and seedlings easily lodge.
Bacterial seedling blight | Rice
DISEASE: Bacterial seedling blight
HOST: Rice (Oryza sativa)
PATHOGEN: Burkholderia plantarii
PATHOGEN SYNONYM: Pseudomonas plantarii
SOURCE: K. Azegami
DISEASE: Greening disease
HOST: Periwinkle
Healthy flower and infected flower.
Greening disease | Periwinkle
DISEASE: Greening disease
HOST: Periwinkle (Vinca sp.)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: D. Teakle
DISEASE: Greening disease
HOST: Periwinkle
Diseased plants with phyllody and greenish yellow leaves.
Greening disease | Periwinkle
DISEASE: Greening disease
HOST: Periwinkle (Vinca minor)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: E. Braun
DISEASE: Greening disease
HOST: Periwinkle
The disease causes virescence and phyllody, distorted and discolored leaves, and greening of flowers.
Greening disease | Periwinkle
DISEASE: Greening disease
HOST: Periwinkle (Catharanthus roseus)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: W. Borth
DISEASE: Witches'-broom
HOST: Alfalfa
Alfalfa plant (center) exhibiting stunting and proliferation of stems. Other symptoms are small, rounded, chlorotic, often puckered leaves and a yellowish cast.
Witches'-broom | Alfalfa
DISEASE: Witches'-broom
HOST: Alfalfa (Medicago sativa)
PATHOGEN: 'Candidatus Phytoplasma trifolii'
PATHOGEN SYNONYM: Phytoplasma Clover proliferation group
SOURCE: S. Thomson
DISEASE: Witches'-broom
HOST: Alfalfa
Young plant (left) with small, numerous stems (witches'-broom). Healthy stems (right).
Witches'-broom | Alfalfa
DISEASE: Witches'-broom
HOST: Alfalfa (Medicago sativa)
PATHOGEN: 'Candidatus Phytoplasma trifolii'
PATHOGEN SYNONYM: Phytoplasma Clover proliferation group
SOURCE: S. Thomson