RESULTS

(5)

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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

DISEASE: Sugar beet scab

HOST: Beet

Sugar beets with brownish, erumpent scabs.

Sugar beet scab | Beet

DISEASE: Sugar beet scab

HOST: Beet (Beta vulgaris)

PATHOGEN: Streptomyces scabiei

PATHOGEN SYNONYM: Streptomyces scabies

SOURCE: M. Shurtleff

DISEASE: Sumatra disease

HOST: Clove

Diseased tree with defoliation and dieback.

Sumatra disease | Clove

DISEASE: Sumatra disease

HOST: Clove (Syzygium aromaticum)

PATHOGEN: Ralstonia syzygii

SOURCE: A. Hayward