RESULTS

(7)

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DISEASE: Almond leaf scorch

HOST: Almond

Light brown necrotic (scorched) areas on curling leaves.

Almond leaf scorch | Almond

DISEASE: Almond leaf scorch

HOST: Almond (Prunus dulcis)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Almond leaf scorch

HOST: Almond

Dying almond trees with scorched appearance. Initial symptoms are marginal chlorosis, usually late in the year. Scorch often is first noted at leaf tips, symptoms worsen, and terminal branches may die.

Almond leaf scorch | Almond

DISEASE: Almond leaf scorch

HOST: Almond (Prunus dulcis)

PATHOGEN: Xylella fastidiosa

SOURCE: R. Davis, M. Davis

DISEASE: Bacterial foot rot

HOST: Rice

The disease causes sheaths to turn dark brown and rot; dead leaves droop. Nodes, culms, and crowns also decay, and infected tillers are easily detached from the crown. Culms and internodes turn black.

Bacterial foot rot | Rice

DISEASE: Bacterial foot rot

HOST: Rice (Oryza sativa)

PATHOGEN: Dickeya zeae

PATHOGEN SYNONYM: Erwinia chrysanthemi pv. zeae

SOURCE: M. Goto

DISEASE: Bacterial foot rot

HOST: Rice

Decayed culms (right) and healthy culms (left). Leaf sheaths of infected plants exhibit dark brown decay and attached leaves turn yellow and wilt.

Bacterial foot rot | Rice

DISEASE: Bacterial foot rot

HOST: Rice (Oryza sativa)

PATHOGEN: Dickeya zeae

PATHOGEN SYNONYM: Erwinia chrysanthemi pv. zeae

SOURCE: M. Goto

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