RESULTS

(5)

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DISEASE: Bacterial blight and bacterial leaf streak

HOST: Rice

Xanthomonas oryzae pv. oryzicola (bacterial leaf streak) causes water-soaked streaks with yellow ooze (left side), and X. oryzae pv. oryzae (bacterial blight) causes brown streaks that have turned white (right side).

Bacterial blight and bacterial leaf streak | Rice

DISEASE: Bacterial blight and bacterial leaf streak

HOST: Rice (Oryza sativa)

PATHOGEN: Xanthomonas oryzae pv. oryzicola

PATHOGEN SYNONYM: Xanthomonas campestris pv. oryzae

SOURCE: T. Mew

DISEASE: Greening disease

HOST: Periwinkle

Healthy flower and infected flower.

Greening disease | Periwinkle

DISEASE: Greening disease

HOST: Periwinkle (Vinca sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: D. Teakle

DISEASE: Greening disease

HOST: Periwinkle

Diseased plants with phyllody and greenish yellow leaves.

Greening disease | Periwinkle

DISEASE: Greening disease

HOST: Periwinkle (Vinca minor)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: E. Braun

DISEASE: Greening disease

HOST: Periwinkle

The disease causes virescence and phyllody, distorted and discolored leaves, and greening of flowers.

Greening disease | Periwinkle

DISEASE: Greening disease

HOST: Periwinkle (Catharanthus roseus)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: W. Borth

DISEASE: Marginal leaf blight

HOST: Lettuce

Marginal leaf blight first appears as slimy wilting of leaf margins. Small, reddish lesions may be seen on leaf blades. Infected tissues turn brown to black in time.

Marginal leaf blight | Lettuce

DISEASE: Marginal leaf blight

HOST: Lettuce (Lactuca sativa)

PATHOGEN: Pseudomonas marginalis

SOURCE: L. Fucikovsky