RESULTS

(4)

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 black leaf spot

HOST: Clover

White clover with brown necrotic spots.

Bacterial black leaf spot | Clover

DISEASE: Bacterial black leaf spot

HOST: Clover (Trifolium repens)

PATHOGEN: Burkholderia andropogonis

PATHOGEN SYNONYM: Pseudomonas andropogonis

SOURCE: M. Goto

DISEASE: Bacterial black leaf spot

HOST: Clover

White clover leaves with brownish spots and some yellowing occurring at the margins.

Bacterial black leaf spot | Clover

DISEASE: Bacterial black leaf spot

HOST: Clover (Trifolium repens)

PATHOGEN: Burkholderia andropogonis

PATHOGEN SYNONYM: Pseudomonas andropogonis

SOURCE: R. Gitaitis

DISEASE: European stone fruit yellows

HOST: Almond

The disease causes yellowing and rolling of leaves (right). Leaves become thick and rough in texture. Healthy leaves (left).

European stone fruit yellows | Almond

DISEASE: European stone fruit yellows

HOST: Almond (Prunus dulcis)

PATHOGEN: 'Candidatus Phytoplasma prunorum'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: E. Seemueller