RESULTS

(5)

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DISEASE: Bacterial leaf and stem necrosis

HOST: Watermelon

Seedlings with necrotic leaves and water-soaked stems.

Bacterial leaf and stem necrosis | Watermelon

DISEASE: Bacterial leaf and stem necrosis

HOST: Watermelon (Citrullus lanatus)

PATHOGEN: Pseudomonas viridiflava

SOURCE: Y. Aysan

DISEASE: Bacterial pustule

HOST: Soybean

Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.

Bacterial pustule | Soybean

DISEASE: Bacterial pustule

HOST: Soybean (Glycine max)

PATHOGEN: Xanthomonas axonopodis pv. glycines

PATHOGEN SYNONYM: Xanthomonas campestris pv. glycines

SOURCE: APS

DISEASE: Maize bushy stunt

HOST: Corn (Maize)

Maize with chlorotic leaf margins and reddening of tips and margins of older leaves.

Maize bushy stunt | Corn (Maize)

DISEASE: Maize bushy stunt

HOST: Corn (Maize) (Zea mays)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: L. Nault, M. Davis

DISEASE: Maize bushy stunt

HOST: Corn (Maize)

Late stage of disease.

Maize bushy stunt | Corn (Maize)

DISEASE: Maize bushy stunt

HOST: Corn (Maize) (Zea mays)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Davis, M. Davis

DISEASE: Maize bushy stunt

HOST: Corn (Maize)

Dalbulus maidis, leafhopper vector of 'Candidatus Phytoplasma asteris', the cause of maize bushy stunt.

Maize bushy stunt | Corn (Maize)

DISEASE: Maize bushy stunt

HOST: Corn (Maize) (Zea mays)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: L. Nault, M. Davis