Fusarium root rot and wilt (Fusarium oxysporum) in Southern Plant Diagnostic Network

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Fusarium surface rot in stored sweetpotato. May 1997

Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org

Fusarium surface rot in stored sweetpotato. May 1997

Sugar beet (common beet) plants showing symptoms of  Fusarium wilt caused by <em>Fusarium oxysporum f.sp. betae</em> in the field.

Howard F. Schwartz, Colorado State University, Bugwood.org

Sugar beet (common beet) plants showing symptoms of  Fusarium wilt caused by Fusarium oxysporum f.sp. betae in the field.

healthy(left) and diseased(right)

Department of Plant Pathology , North Carolina State University, Bugwood.org

healthy(left) and diseased(right)

bottom view of culture plate at 4 days

Rachel Brown, University of Florida, Bugwood.org

bottom view of culture plate at 4 days

fungi in agar plate

Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org

fungi in agar plate

Macroconidia of <em>Fusarium oxysporum </em>(400X). December 1991

Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org

Macroconidia of Fusarium oxysporum (400X). December 1991

corm and roots split

Department of Plant Pathology , North Carolina State University, Bugwood.org

corm and roots split

Fusarium surface rot.  cv. Centennial  (Apr-64).

Charles Averre, North Carolina State University, Bugwood.org

Fusarium surface rot.  cv. Centennial  (Apr-64).

Thinning crown of infected tree

Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org

Thinning crown of infected tree

Distinctive pale to dark brown (sometimes with a purplish hue)staining or discoloration of the xylem. This soil borne fungus enters the roots by direct penetration or through root wounds during transplanting/landscape maintance, or vectored by feeding injury caused by plant parastic nematodes. Once inside a susceptible host, the fungus enters the xylem and colonizes the vascular system restricting water flow.

Edward L. Barnard, Florida Department of Agriculture and Consumer Services, Bugwood.org

Distinctive pale to dark brown (sometimes with a purplish hue)staining or discoloration of the xylem. This soil borne fungus enters the roots by direct penetration or through root wounds during transplanting/landscape maintance, or vectored by feeding injury caused by plant parastic nematodes. Once inside a susceptible host, the fungus enters the xylem and colonizes the vascular system restricting water flow.

Fusarium root rot and wilt (<em>Fusarium oxysporum</em>) symptoms on tomato (<em>Lycopersicon esculentum</em>)

Florida Division of Plant Industry , Florida Department of Agriculture and Consumer Services, Bugwood.org

Fusarium root rot and wilt (Fusarium oxysporum) symptoms on tomato (Lycopersicon esculentum)

Sugar beet (common beet) plants showing symptoms of  Fusarium wilt caused by <em>Fusarium oxysporum f.sp. betae</em> in the field.

Howard F. Schwartz, Colorado State University, Bugwood.org

Sugar beet (common beet) plants showing symptoms of  Fusarium wilt caused by Fusarium oxysporum f.sp. betae in the field.