RESULTS

(4)

FILTER

DISEASE: Bacterial wilt

HOST: Squash

Field with severe symptoms of wilt. Foliage often is chlorotic and leaf margins may be chlorotic and necrotic before plant death. Bacterial ooze may be seen streaming from the xylem when infected stems are cut.

Bacterial wilt | Squash

DISEASE: Bacterial wilt

HOST: Squash (Cucurbita maxima)

PATHOGEN: Erwinia tracheiphila

SOURCE: B. Jacobsen, M. Shurtleff

DISEASE: Blister spot

HOST: Apple

Late stage of blister spot. The purplish black lesions are associated with lenticels and stomata.

Blister spot | Apple

DISEASE: Blister spot

HOST: Apple (Malus domestica 'Crispin')

PATHOGEN: Pseudomonas syringae pv. papulans

SOURCE: T. Burr

DISEASE: Halo blight

HOST: Bean

Chlorotic, systemic symptoms with necrotic lesions on leaves of 'Romano' common bean.

Halo blight | Bean

DISEASE: Halo blight

HOST: Bean (Phaseolus vulgaris 'Romano')

PATHOGEN: Pseudomonas syringae pv. phaseolicola

PATHOGEN SYNONYM: Pseudomonas savastanoi pv. phaseolicola

SOURCE: M. Schroth

DISEASE: Halo blight

HOST: Bean

Chlorotic, systemic symptoms with no visible lesions on leaves of 'Romano' common bean.

Halo blight | Bean

DISEASE: Halo blight

HOST: Bean (Phaseolus vulgaris 'Romano')

PATHOGEN: Pseudomonas syringae pv. phaseolicola

PATHOGEN SYNONYM: Pseudomonas savastanoi pv. phaseolicola

SOURCE: M. Schroth