RESULTS

(11)

FILTER

DISEASE: Bacterial stem and rhizome rot

HOST: Iris

Iris stem and rhizome with brown, discolored, rotted portions.

Bacterial stem and rhizome rot | Iris

DISEASE: Bacterial stem and rhizome rot

HOST: Iris (Iris sp.)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: R. Raabe

DISEASE: Bacterial stem and rhizome rot

HOST: Iris

Mushy rot of stems and rhizomes are characteristic of advanced stage of the disease.

Bacterial stem and rhizome rot | Iris

DISEASE: Bacterial stem and rhizome rot

HOST: Iris (Iris sp.)

PATHOGEN: Burkholderia gladioli pv. gladioli

PATHOGEN SYNONYM: Pseudomonas gladioli pv. gladioli

SOURCE: R. Raabe

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: Citrus variegated chlorosis

HOST: Citrus (sp. unknown)

Leaf with chlorosis in interveinal spaces and brown spots visible on lower leaf surface.

Citrus variegated chlorosis | Citrus (sp. unknown)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown) (Citrus sp.)

PATHOGEN: Xylella fastidiosa

SOURCE: M. J. G. Beretta

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown)

Interveinal chlorosis on upper side of leaves.

Citrus variegated chlorosis | Citrus (sp. unknown)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown) (Citrus sp.)

PATHOGEN: Xylella fastidiosa

SOURCE: M. J. G. Beretta

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown)

Leafhopper (Oncometopia nigricans) vector of Xylella fastidiosa, which transmits citrus variegated chlorosis.

Citrus variegated chlorosis | Citrus (sp. unknown)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (sp. unknown) (Citrus sp.)

PATHOGEN: Xylella fastidiosa

SOURCE: D. Hopkins

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Small, hard, diseased fruit interspersed with three normal fruits for comparison. Diseased fruit often exhibit sunburn symptoms.

Citrus variegated chlorosis | Citrus (Orange)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange) (Citrus sinensis)

PATHOGEN: Xylella fastidiosa

SOURCE: M. J. G. Beretta

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Diseased tree with sparse foliage.

Citrus variegated chlorosis | Citrus (Orange)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange) (Citrus sinensis)

PATHOGEN: Xylella fastidiosa

SOURCE: S. Purcell