RESULTS

(6)

FILTER

DISEASE: Bacterial blight

HOST: Grass

Timothy grass with light-colored lesions caused by unidentified Xanthomonas sp.

Bacterial blight | Grass

DISEASE: Bacterial blight

HOST: Grass (Phleum pratense)

PATHOGEN: Xanthomonas sp.

SOURCE: M. Shurtleff

DISEASE: Bacterial leaf spot (Blight)

HOST: Elderberry

Elderberry with dark brown to blackish angular leaf spots.

Bacterial leaf spot (Blight) | Elderberry

DISEASE: Bacterial leaf spot (Blight)

HOST: Elderberry (Sambucus racemosa)

PATHOGEN: Xanthomonas sp.

SOURCE: S. Mohan

DISEASE: Halo blight

HOST: Rice

Leaves with yellowish brown lesions, 2 to 10 mm in diameter. Lesions are surrounded by distinct halos. Later, brown spots or stripes may develop in the center.

Halo blight | Rice

DISEASE: Halo blight

HOST: Rice (Oryza sativa)

PATHOGEN: Pseudomonas syringae pv. oryzae

SOURCE: H. Kuwata

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