RESULTS

(4)

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DISEASE: Aster yellows

HOST: Squash

Diagnostic characteristics for the disease are yellowing of young leaves, proliferation of secondary shoots, and rigid erect habit. Leaves are misshapen and smaller than normal and have stiff, thick laminae.

Aster yellows | Squash

DISEASE: Aster yellows

HOST: Squash (Cucurbita sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: S. Miller

DISEASE: Bacterial leaf spot of beet

HOST: Beet

Beet leaves with spots and marginal necrosis.

Bacterial leaf spot of beet | Beet

DISEASE: Bacterial leaf spot of beet

HOST: Beet (Beta vulgaris subsp. vulgaris)

PATHOGEN: Pseudomonas syringae pv. aptata

PATHOGEN SYNONYM: Pseudomonas aptata

SOURCE: P. Brown

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana

'Bluggoe' banana infected by small fluidal round (SFR) strain. Bacterial ooze from bracts attracts insects that transmit the disease to other inflorescences.

Bacterial wilt (Moko disease) | Banana

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana (Musa sp. 'Bluggoe')

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: I. Buddenhagen

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana

Fruit stalk infected with small fluidal round (SFR) strain of Ralstonia solanacearum. Infection of terminal bud occurs at sites where dead male flowers dehisced.

Bacterial wilt (Moko disease) | Banana

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana (Musa sp. 'Bluggoe')

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: I. Buddenhagen, M. Schroth