RESULTS

(4)

FILTER

DISEASE: Aster yellows

HOST: Onion

Infected plants with yellowish, malformed leaves.

Aster yellows | Onion

DISEASE: Aster yellows

HOST: Onion (Allium cepa)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Rowe

DISEASE: Aster yellows

HOST: Onion

Onion flower with unusual symptoms (left) compared with healthy inflorescence (right). Flowers are distorted and often have abnormally long pedicels. Young leaves may have yellow streaks or a general yellowing of basal portions.

Aster yellows | Onion

DISEASE: Aster yellows

HOST: Onion (Allium cepa)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Raabe

DISEASE: Bacterial soft rot

HOST: Onion

Bulb with early-season soft rot symptoms.

Bacterial soft rot | Onion

DISEASE: Bacterial soft rot

HOST: Onion (Allium cepa)

PATHOGEN: Pectobacterium carotovorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora

SOURCE: H. Schwartz

DISEASE: Bacterial soft rot

HOST: Onion

Diseased leaves with bleaching and light brown discoloration.

Bacterial soft rot | Onion

DISEASE: Bacterial soft rot

HOST: Onion (Allium cepa)

PATHOGEN: Pectobacterium carotovorum

PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora

SOURCE: H. Schwartz