Gallery

Mature leaf symptoms of a Florida isolate of citrus ringspot.

Composite slide showing bark and leaf symptoms of naturally spread psorosis in Argentina.

Scaling and flaking of bark on trunk

Severe bark scaling typically associated with citrus ringspot and some forms of psorosis. Citrus sinensis tree infected with "naturally spread" psorosis.

Bark scaling typically associated with citrus ringspot and some forms of psorosis. Citrus sinensis tree in Argentina infected with "naturally spread" psorosis.

Staining of interior wood of a branch of sweet orange infected with psorosis-A. This symptoms is diagnostic for psorosis-A when found on trees showing bark lesions. Courtesy EcoPort (ht

A specimen of wood staining (branch) symptomatic of psorosis-A observed at Bella Vista, Argentina. Courtesy EcoPort (http://www.ecoport.org), Roistacher CN

Ice-mark and early symptoms of septoria spot on fruit. Photos by Jim Adaskaveg, UCR.

Ice-mark and early and advanced symptoms of septoria spot on fruit. Photos by Jim Adaskaveg, UCR.

Advanced symptoms of septoria spot on fruit. Photos by Jim Adaskaveg, UCR.

Septoria symptoms on fruit.

Sweet orange scab on Valencia fruit.

Sweet orange scab on Valencia fruit.

Lesions on fruit of Fortunella sp.

Lesions on fruit of Citrus limon.

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus paradisi, positive and negative.

Lesions on Citrus paradisi leaf, top side of leaves on left, bottom side of leaves on right.

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus reticulata.

Lesions on fruit of Citrus reticulata.

Close-up of lesion on fruit of Citrus sinensis.

Lesions on leaf of Citrus sinensis.

Lesions on leaf of Citrus sinensis.

Lesions on fruit.

Close-up of lesions on leaf.

Close-up of lesions on leaf.

Lesions on leaf.

Lesions on fruit.