RESULTS

(4)

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DISEASE: Elm leaf scorch

HOST: Elm

Diseased tree with scorch at leaf margins.

Elm leaf scorch | Elm

DISEASE: Elm leaf scorch

HOST: Elm (Ulmus americana)

PATHOGEN: Xylella fastidiosa

SOURCE: J. Sherald, M. Shurtleff

DISEASE: Elm leaf scorch

HOST: Elm

Severely diseased tree with dieback and scorched leaves.

Elm leaf scorch | Elm

DISEASE: Elm leaf scorch

HOST: Elm (Ulmus americana)

PATHOGEN: Xylella fastidiosa

SOURCE: W. Sinclair

DISEASE: Yellow wilt

HOST: Beet

Symptoms of this disease are yellow leaves, wilting, and then collapse. There may be dwarfing of new leaves, yellowing of sectors, and chlorosis of veins.

Yellow wilt | Beet

DISEASE: Yellow wilt

HOST: Beet (Beta vulgaris)

PATHOGEN: 'Candidatus Phytoplasma' sp.

PATHOGEN SYNONYM: Phytoplasma (undefined)

SOURCE: F. Hills

DISEASE: Yellow wilt

HOST: Beet

Yellowing and dwarfing of sugar beet (left), an early stage of disease.

Yellow wilt | Beet

DISEASE: Yellow wilt

HOST: Beet (Beta vulgaris)

PATHOGEN: 'Candidatus Phytoplasma' sp.

PATHOGEN SYNONYM: Phytoplasma (undefined)

SOURCE: J. McFarlane