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DISEASE: Bacterial leaf spot of chard

HOST: Chard

Chard leaves with necrotic spots.

Bacterial leaf spot of chard | Chard

DISEASE: Bacterial leaf spot of chard

HOST: Chard (Beta vulgaris subsp. cicla)

PATHOGEN: Pseudomonas syringae pv. aptata

PATHOGEN SYNONYM: Pseudomonas aptata

SOURCE: P. Brown

DISEASE: Bacterial leaf spot of chard

HOST: Chard

Chard with necrotic, irregular leaf spots.

Bacterial leaf spot of chard | Chard

DISEASE: Bacterial leaf spot of chard

HOST: Chard (Beta vulgaris subsp. cicla)

PATHOGEN: Pseudomonas syringae pv. aptata

PATHOGEN SYNONYM: Pseudomonas aptata

SOURCE: P. Brown

DISEASE: Carrot yellows

HOST: Carrot

Flowers with shoot proliferation (witches’-broom) (left). Healthy flower (right). Virescence and phyllody of flower parts are common.

Carrot yellows | Carrot

DISEASE: Carrot yellows

HOST: Carrot (Daucus carota)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: M. Schroth

DISEASE: Carrot yellows

HOST: Carrot

Carrot with proliferation of roots. Initial symptoms include yellowing and narrowing of veins of young leaves. The entire leaf later becomes necrotic.

Carrot yellows | Carrot

DISEASE: Carrot yellows

HOST: Carrot (Daucus carota)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: G. S. Abawi

DISEASE: Saber tooth

HOST: Lily

Lily with deformed growth that resembles a saber tooth.

Saber tooth | Lily

DISEASE: Saber tooth

HOST: Lily (Lilium sp. 'Enchantment')

PATHOGEN: Curtobacterium flaccumfaciens pv. oortii

PATHOGEN SYNONYM: Corynebacterium flaccumfaciens subsp. oortii

SOURCE: H. van Hoof, J. van der Wolf