RESULTS

(3)

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DISEASE: Bacterial dieback of peach

HOST: Peach

Dark cankers on last year's twig. This leads to blighting of buds the following year.

Bacterial dieback of peach | Peach

DISEASE: Bacterial dieback of peach

HOST: Peach (Prunus persica)

PATHOGEN: Pseudomonas syringae pv. persicae

SOURCE: J. Young

DISEASE: Bacterial mushy canker

HOST: Papaya

This disease (Micronesia) differs from bacterial decline by causing blackish, water-soaked, mushy cankers near or in leaf axils or on young stems.

Bacterial mushy canker | Papaya

DISEASE: Bacterial mushy canker

HOST: Papaya (Carica papaya)

PATHOGEN: Erwinia sp.

SOURCE: E. Trujillo

DISEASE: Marginal leaf blight

HOST: Lettuce

Marginal leaf blight first appears as slimy wilting of leaf margins. Small, reddish lesions may be seen on leaf blades. Infected tissues turn brown to black in time.

Marginal leaf blight | Lettuce

DISEASE: Marginal leaf blight

HOST: Lettuce (Lactuca sativa)

PATHOGEN: Pseudomonas marginalis

SOURCE: L. Fucikovsky