RESULTS

(3)

FILTER

DISEASE: Alfalfa dwarf

HOST: Alfalfa

Alfalfa dwarf is characterized by stunted plants (left), usually dark blue-green in color. Xylem tissues become brown, especially when exposed to air.

Alfalfa dwarf | Alfalfa

DISEASE: Alfalfa dwarf

HOST: Alfalfa (Medicago sativa)

PATHOGEN: Xylella fastidiosa

SOURCE: R. M. Davis

DISEASE: Bacterial kernel blight (Leaf blight)

HOST: Barley

Dark, brown discolored kernels at the embryo end and posterior surface.

Bacterial kernel blight (Leaf blight) | Barley

DISEASE: Bacterial kernel blight (Leaf blight)

HOST: Barley (Hordeum vulgare)

PATHOGEN: Pseudomonas syringae pv. syringae

SOURCE: C. Martinez-Miller

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