RESULTS

(23)

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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

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Typical symptoms of the disease are discoloration of infected leaves, brown spots on lower sides of leaves, chlorosis on upper sides, and undersized fruit (left). Healthy fruit and leaves (right).

Citrus variegated chlorosis | Citrus (Orange)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange) (Citrus sinensis)

PATHOGEN: Xylella fastidiosa

SOURCE: S. Purcell

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange)

Severely infected tree with typical stunting and chlorosis. Symptoms may appear on only one branch of the canopy.

Citrus variegated chlorosis | Citrus (Orange)

DISEASE: Citrus variegated chlorosis

HOST: Citrus (Orange) (Citrus sinensis)

PATHOGEN: Xylella fastidiosa

SOURCE: M. J. G. Beretta

DISEASE: Witches'-broom

HOST: Lilac

Lilac with broomlike symptoms and dead twigs.

Witches'-broom | Lilac

DISEASE: Witches'-broom

HOST: Lilac (Syringa josiflexa 'Royalty')

PATHOGEN: 'Candidatus Phytoplasma fraxini'

PATHOGEN SYNONYM: Phytoplasma Ash yellows group

SOURCE: C. Hibben, W. Sinclair

DISEASE: Witches'-broom

HOST: Lilac

Small tree with some chlorotic leaves and deliquescent branching.

Witches'-broom | Lilac

DISEASE: Witches'-broom

HOST: Lilac (Syringa × prestoniae)

PATHOGEN: 'Candidatus Phytoplasma fraxini'

PATHOGEN SYNONYM: Phytoplasma Ash yellows group

SOURCE: W. Sinclair