DISEASE: Bacterial leaf spot
HOST: Clover
Clover with reddish brown leaf spots, stem spots, and blighted stem.
Bacterial leaf spot | Clover
DISEASE: Bacterial leaf spot
HOST: Clover (Trifolium pratense)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: F. Frosheizer, M. Shurtleff
DISEASE: Bunch disease
HOST: Walnut
Tree with advanced disease symptoms of branch and twig death.
Bunch disease | Walnut
DISEASE: Bunch disease
HOST: Walnut (Juglans microcarpa)
PATHOGEN: 'Candidatus Phytoplasma pruni'
PATHOGEN SYNONYM: Phytoplasma X-disease group
SOURCE: W. Sinclair
DISEASE: Halo blight
HOST: Bean
Leaf of 'Bountiful' bean with chlorotic halos, an early stage of disease. Tiny water-soaked are difficult to see.
Halo blight | Bean
DISEASE: Halo blight
HOST: Bean (Phaseolus vulgaris 'Bountiful')
PATHOGEN: Pseudomonas syringae pv. phaseolicola
PATHOGEN SYNONYM: Pseudomonas savastanoi pv. phaseolicola
SOURCE: M. Schroth