RESULTS

(54)

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DISEASE: Angular leaf spot

HOST: Tobacco

Leaf with light brown, angular spots. The difference between this disease and wildfire of tobacco is that wildfire is caused by a strain that produces tabtoxin. It causes conspicuous halos around lesions and large parts of a leaf may turn yellow .

Angular leaf spot | Tobacco

DISEASE: Angular leaf spot

HOST: Tobacco (Nicotiana tabacum)

PATHOGEN: Pseudomonas syringae pv. tabaci

SOURCE: H. Shew

DISEASE: Angular leaf spot

HOST: Tobacco

Yellowing of adjacent tissues occur as spots age (midseason). It causes conspicuous halos around lesions. Large parts of a leaf may turn yellow.

Angular leaf spot | Tobacco

DISEASE: Angular leaf spot

HOST: Tobacco (Nicotiana tabacum)

PATHOGEN: Pseudomonas syringae pv. tabaci

SOURCE: H. Shew

DISEASE: Angular leaf spot

HOST: Tobacco

Severely diseased leaf with extensive yellowing.

Angular leaf spot | Tobacco

DISEASE: Angular leaf spot

HOST: Tobacco (Nicotiana tabacum)

PATHOGEN: Pseudomonas syringae pv. tabaci

SOURCE: H. Shew

DISEASE: Bacterial pustule

HOST: Soybean

Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.

Bacterial pustule | Soybean

DISEASE: Bacterial pustule

HOST: Soybean (Glycine max)

PATHOGEN: Xanthomonas axonopodis pv. glycines

PATHOGEN SYNONYM: Xanthomonas campestris pv. glycines

SOURCE: APS

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana

Diseased young plant with wilted, yellowish leaves.

Bacterial wilt (Moko disease) | Banana

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana (Musa sp.)

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: I. Buddenhagen

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana

'Valery' banana with wilted and yellowing leaves.

Bacterial wilt (Moko disease) | Banana

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana (Musa sp. 'Valery')

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: I. Buddenhagen, M. Schroth

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana

Devastated plantation with wilting and dead plants.

Bacterial wilt (Moko disease) | Banana

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana (Musa × paradisiaca 'Gros Michel')

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: I. Buddenhagen

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

Banana stalk with cross sections of infected fruit with discolored vascular bundles.

Bacterial wilt (Moko disease) | Banana

DISEASE: Bacterial wilt (Moko disease)

HOST: Banana (Musa sp.)

PATHOGEN: Ralstonia solanacearum

PATHOGEN SYNONYM: Pseudomonas solanacearum

SOURCE: I. Buddenhagen, M. Schroth