RESULTS

(6)

FILTER

DISEASE: Ash yellows

HOST: Ash

Forest of declining trees, some chlorotic and others with dieback.

Ash yellows | Ash

DISEASE: Ash yellows

HOST: Ash (Fraxinus americana)

PATHOGEN: 'Candidatus Phytoplasma fraxini'

PATHOGEN SYNONYM: Phytoplasma Ash yellows group

SOURCE: W. Sinclair

DISEASE: Ash yellows

HOST: Ash

White ash with deliquescent branching.

Ash yellows | Ash

DISEASE: Ash yellows

HOST: Ash (Fraxinus americana)

PATHOGEN: 'Candidatus Phytoplasma fraxini'

PATHOGEN SYNONYM: Phytoplasma Ash yellows group

SOURCE: W. Sinclair

DISEASE: Bacterial leaf spot

HOST: Larkspur

Infected leaflets with many purplish spots with necrotic centers.

Bacterial leaf spot | Larkspur

DISEASE: Bacterial leaf spot

HOST: Larkspur (Delphinium sp.)

PATHOGEN: Pseudomonas syringae pv. delphinii

SOURCE: R. Raabe

DISEASE: Larkspur virescence

HOST: Larkspur

Two diseased plants with stunted and small leaves, lack of flower coloration, and bunched flower buds. Healthy plant (left).

Larkspur virescence | Larkspur

DISEASE: Larkspur virescence

HOST: Larkspur (Delphinium sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: R. Raabe

DISEASE: Sudden death (Wilt)

HOST: Palm

Palm in Columbia with severe yellowing of leaves.

Sudden death (Wilt) | Palm

DISEASE: Sudden death (Wilt)

HOST: Palm (Elaeis guineensis)

PATHOGEN: Phytomonas sp.

SOURCE: R. McCoy, M. Davis

DISEASE: Sudden death (Wilt)

HOST: Palm

Palm with desiccated, wilted leaves, a symptom of the disease.

Sudden death (Wilt) | Palm

DISEASE: Sudden death (Wilt)

HOST: Palm (Elaeis guineensis)

PATHOGEN: Phytomonas sp.

SOURCE: R. McCoy, M. Davis