DISEASE: Alfalfa dwarf
HOST: Alfalfa
Alfalfa dwarf is characterized by stunted plants (left), usually dark blue-green in color. Xylem tissues become brown, especially when exposed to air.
Alfalfa dwarf | Alfalfa
DISEASE: Alfalfa dwarf
HOST: Alfalfa (Medicago sativa)
PATHOGEN: Xylella fastidiosa
SOURCE: R. M. Davis
DISEASE: Bacterial mosaic
HOST: Wheat
Diseased leaves with mosaic pattern exhibiting various amounts of yellowing. Leaves were artificially inoculated by vacuum infiltration.
Bacterial mosaic | Wheat
DISEASE: Bacterial mosaic
HOST: Wheat (Triticum aestivum)
PATHOGEN: Clavibacter michiganensis subsp. tessellarius
SOURCE: A. Vidaver
DISEASE: Bacterial palea browning
HOST: Rice
Early stage of disease with browning of palea.
Bacterial palea browning | Rice
DISEASE: Bacterial palea browning
HOST: Rice (Oryza sativa)
PATHOGEN: Pantoea agglomerans
PATHOGEN SYNONYM: Erwinia herbicola
SOURCE: K. Ozaki, M. Goto
DISEASE: Bacterial palea browning
HOST: Rice
Browning of palea begins with water-soaked lesions that later turn dark brown. Infected grains become brown after milling.
Bacterial palea browning | Rice
DISEASE: Bacterial palea browning
HOST: Rice (Oryza sativa)
PATHOGEN: Pantoea agglomerans
PATHOGEN SYNONYM: Erwinia herbicola
SOURCE: T. Mew