RESULTS

(7)

FILTER

DISEASE: Bacterial blight (Brown stem)

HOST: Celery

Lesions are necrotic and circular to angular. Some have yellowish halos. Older lesions become brown and dry.

Bacterial blight (Brown stem) | Celery

DISEASE: Bacterial blight (Brown stem)

HOST: Celery (Apium graveolens)

PATHOGEN: Pseudomonas cichorii

SOURCE: R. Raid

DISEASE: Bacterial blight (Brown stem)

HOST: Celery

Ooze from lesion on celery leaf.

Bacterial blight (Brown stem) | Celery

DISEASE: Bacterial blight (Brown stem)

HOST: Celery (Apium graveolens)

PATHOGEN: Pseudomonas cichorii

SOURCE: R. Raid

DISEASE: Bacterial blight (Brown stem)

HOST: Celery

Characteristic brown discoloration of petioles, which is more evident on inside of petiole close to the crown. Parenchyma tissues are firm and brown.

Bacterial blight (Brown stem) | Celery

DISEASE: Bacterial blight (Brown stem)

HOST: Celery (Apium graveolens)

PATHOGEN: Pseudomonas cichorii

SOURCE: K. Pernezny

DISEASE: Bacterial hyperplastic canker

HOST: Almond

Diseased tree with multiple cankers. Margins of cankers are rough, soft, cheesy, dark brown, and have scalloped water-soaked spots that turn brown. Multiple cankers may girdle and kill small twigs.

Bacterial hyperplastic canker | Almond

DISEASE: Bacterial hyperplastic canker

HOST: Almond (Prunus dulcis)

PATHOGEN: Pseudomonas amygdali

SOURCE: P. Psallidas

DISEASE: Olive knot

HOST: Olive

Multiple infections of young stems. The bacterium invades vascular tissues during certain times of the year and may be isolated from branches that appear healthy.

Olive knot | Olive

DISEASE: Olive knot

HOST: Olive (Olea europaea)

PATHOGEN: Pseudomonas savastanoi pv. savastanoi

SOURCE: M. Schroth

DISEASE: Olive knot

HOST: Olive

Tree with knots/galls on branches along with twig dieback, which is associated with knots. Fusarium and Diplodia spp. infect through knots and are thought to be main reason for dieback.

Olive knot | Olive

DISEASE: Olive knot

HOST: Olive (Olea europaea)

PATHOGEN: Pseudomonas savastanoi pv. savastanoi

SOURCE: M. Schroth

DISEASE: Olive knot

HOST: Olive

Multiple infections on olive branch. Knots at this stage begin to die from the outside in and are infected by several fungi.

Olive knot | Olive

DISEASE: Olive knot

HOST: Olive (Olea europaea)

PATHOGEN: Pseudomonas savastanoi pv. savastanoi

SOURCE: M. Schroth