RESULTS

(5)

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DISEASE: Apple proliferation

HOST: Apple

Enlarged stipules on leaf. Witches'-brooms, rosettes, and enlarged stipules are the most reliable symptoms for identification.

Apple proliferation | Apple

DISEASE: Apple proliferation

HOST: Apple (Malus domestica 'Granny Smith')

PATHOGEN: 'Candidatus Phytoplasma mali'

PATHOGEN SYNONYM: Phytoplasma Apple proliferation group

SOURCE: M. Wolf, W. Schweigkofler

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: 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

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