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 leaf spot
HOST: Pumpkin
Leaf with tan to brown, angular lesions with dark margins. They are similar to those caused by angular leaf spot.
Bacterial leaf spot | Pumpkin
DISEASE: Bacterial leaf spot
HOST: Pumpkin (Cucurbita pepo)
PATHOGEN: Xanthomonas cucurbitae
SOURCE: J. Young
DISEASE: Hairy root
HOST: Rose
Hairy root symptoms of many fibrous roots (right). Noninfected root (left).
Hairy root | Rose
DISEASE: Hairy root
HOST: Rose (Rosa sp.)
PATHOGEN: Agrobacterium rhizogenes
SOURCE: R. Raabe
DISEASE: Hairy root
HOST: Apple
Crown gall (left) and hairy root (right) caused by Agrobacterium tumefaciens and A. rhizogenes, respectively.
Hairy root | Apple
DISEASE: Hairy root
HOST: Apple (Malus domestica)
PATHOGEN: Agrobacterium rhizogenes
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: APS
DISEASE: Hairy root
HOST: Rose
Crown gall (left) and hairy root (right) caused by Agrobacterium tumefaciens and A. rhizogenes, respectively. Healthy root (center).
Hairy root | Rose
DISEASE: Hairy root
HOST: Rose (Rosa sp.)
PATHOGEN: Agrobacterium rhizogenes
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: M. Schroth