RESULTS

(21)

FILTER

DISEASE: Pierce's disease

HOST: Grape

Leaves with bright yellow, chlorotic areas with dead, dry, necrotic adjacent tissues.

Pierce's disease | Grape

DISEASE: Pierce's disease

HOST: Grape (Vitis vinifera)

PATHOGEN: Xylella fastidiosa

SOURCE: J. Clark, S. Purcell

DISEASE: Witches'-broom

HOST: Alfalfa

Alfalfa plant (center) exhibiting stunting and proliferation of stems. Other symptoms are small, rounded, chlorotic, often puckered leaves and a yellowish cast.

Witches'-broom | Alfalfa

DISEASE: Witches'-broom

HOST: Alfalfa (Medicago sativa)

PATHOGEN: 'Candidatus Phytoplasma trifolii'

PATHOGEN SYNONYM: Phytoplasma Clover proliferation group

SOURCE: S. Thomson

DISEASE: Witches'-broom

HOST: Alfalfa

Young plant (left) with small, numerous stems (witches'-broom). Healthy stems (right).

Witches'-broom | Alfalfa

DISEASE: Witches'-broom

HOST: Alfalfa (Medicago sativa)

PATHOGEN: 'Candidatus Phytoplasma trifolii'

PATHOGEN SYNONYM: Phytoplasma Clover proliferation group

SOURCE: S. Thomson