southern blight (Sclerotium rolfsii ) on flue-cured tobacco (Nicotiana tabacum (flue-cured type)) - 1402046

southern blight
Sclerotium rolfsii Sacc.

Host: flue-cured tobacco (Nicotiana tabacum (flue-cured type) L.)
Descriptor: Symptoms
Description: With this fungal disease, leaves of infected plants rapidly turn yellow, wilt, and die. The dried, brown leaves hang down the dying stalk. The root system remains healthy prior to the death of the plant. Infected plants are usually scattered singly through the field or occur in small groups. Symptoms may be confused with those of black shank. During warm, moist weather, the fungus produces a white cottony growth from the discolored stalk lesions. Discing of the pith similar to black shank may occur, but it is much lighter in color and not as well-organized. Infected stalks easily break at the stalk lesion.
Image type: Field
Image location: United States

Specimen Information

Specimen in collection: No
Specimen Condition:
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Photographer Information

Name: R.J. Reynolds Tobacco Company Slide Set
Organization: R.J. Reynolds Tobacco Company
Country: United States

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Image Number: 1402046

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Node Affiliation: Bugwood - UGA

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Image uploaded on Sunday, March 10, 2002
Image Information last updated on Friday, February 25, 2011