DISEASE: Bacterial blight
HOST: Pea
Pea pod with diseased seeds and infection along the suture.
Bacterial blight | Pea
DISEASE: Bacterial blight
HOST: Pea (Pisum sativum)
PATHOGEN: Pseudomonas syringae pv. pisi
SOURCE: J. M. Kraft
DISEASE: Bacterial blight
HOST: Pea
Pea plant with water-soaked lesions on stems and leaves with some bacterial exudate evident. Irregular lesions turn dark brown with light tan centers. Severe distortion of stems, petioles, and growing points may occur.
Bacterial blight | Pea
DISEASE: Bacterial blight
HOST: Pea (Pisum sativum)
PATHOGEN: Pseudomonas syringae pv. pisi
SOURCE: S. Thomson
DISEASE: Bacterial blight
HOST: Pea
Dark lesions on pods and dorsal sutures.
Bacterial blight | Pea
DISEASE: Bacterial blight
HOST: Pea (Pisum sativum)
PATHOGEN: Pseudomonas syringae pv. pisi
SOURCE: J. Young
DISEASE: Bacterial blight
HOST: Pea
Severely diseased plant with array of blight symptoms.
Bacterial blight | Pea
DISEASE: Bacterial blight
HOST: Pea (Pisum sativum)
PATHOGEN: Pseudomonas syringae pv. pisi
SOURCE: J. Young
DISEASE: Bacterial blight
HOST: Pea
Leaves with typical blight symptoms. The disease also affects nodes, stipules, floral parts, stems, and pods.
Bacterial blight | Pea
DISEASE: Bacterial blight
HOST: Pea (Pisum sativum)
PATHOGEN: Pseudomonas syringae pv. pisi
SOURCE: M. Schroth
DISEASE: Bacterial wilt
HOST: Alfalfa
Longitudinal section of defined brown gum pockets on inner surface of root bark.
Bacterial wilt | Alfalfa
DISEASE: Bacterial wilt
HOST: Alfalfa (Medicago sativa)
PATHOGEN: Clavibacter michiganensis subsp. insidiosus
SOURCE: S. Thomson
DISEASE: Bacterial wilt
HOST: Alfalfa
Infected plant (left) with typical symptoms of stunting and chlorosis. Other characteristic symptoms are spindly stems and small distorted leaflets. Healthy plant (right).
Bacterial wilt | Alfalfa
DISEASE: Bacterial wilt
HOST: Alfalfa (Medicago sativa)
PATHOGEN: Clavibacter michiganensis subsp. insidiosus
SOURCE: S. Thomson
DISEASE: Bacterial wilt
HOST: Alfalfa
Diseased plant with chlorotic leaves.
Bacterial wilt | Alfalfa
DISEASE: Bacterial wilt
HOST: Alfalfa (Medicago sativa)
PATHOGEN: Clavibacter michiganensis subsp. insidiosus
SOURCE: S. Thomson
DISEASE: Bacterial wilt
HOST: Alfalfa
Cross sections of diseased roots with defined brown gum pockets on inner surface of bark. Healthy root (upper left). Other sections represent increases in disease severity.
Bacterial wilt | Alfalfa
DISEASE: Bacterial wilt
HOST: Alfalfa (Medicago sativa)
PATHOGEN: Clavibacter michiganensis subsp. insidiosus
SOURCE: L. Claflin