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Mature leaf symptoms of a Florida isolate of citrus ringspot.

Mature leaf symptoms of a Florida isolate of citrus ringspot.

Psorosis

Mature leaf symptoms of a Florida isolate of citrus ringspot.

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

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

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

Scaling and flaking of bark on trunk

Scaling and flaking of bark on trunk
Psorosis

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

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

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

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

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

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

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

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

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.

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

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.

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

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

Septoria symptoms on fruit.

Septoria symptoms on fruit.
Septoria

Septoria symptoms on fruit.

Sweet orange scab on Valencia fruit.

Sweet orange scab on Valencia fruit.
Sweet orange scab

Sweet orange scab on Valencia fruit.


Sweet orange scab on Valencia fruit.

Sweet orange scab on Valencia fruit.
Sweet orange scab

Sweet orange scab on Valencia fruit.

Lesions on fruit of Fortunella sp.

Lesions on fruit of Fortunella sp.
Sweet orange scab

Lesions on fruit of Fortunella sp.

Lesions on fruit of Citrus limon .

Lesions on fruit of Citrus limon.
Sweet orange scab

Lesions on fruit of Citrus limon.

Lesions on fruit of Citrus paradisi .

Lesions on fruit of Citrus paradisi.
Sweet orange scab

Lesions on fruit of Citrus paradisi.


Lesions on fruit of Citrus paradisi .

Lesions on fruit of Citrus paradisi.
Sweet orange scab

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus paradisi , positive and negative.

Lesions on fruit of Citrus paradisi, positive and negative.
Sweet orange scab

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 Citrus paradisi leaf, top side of leaves on left, bottom side of leaves on right.
Sweet orange scab

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.
Sweet orange scab

Lesions on fruit of Citrus paradisi.


Lesions on fruit of Citrus paradisi .

Lesions on fruit of Citrus paradisi.
Sweet orange scab

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus paradisi .

Lesions on fruit of Citrus paradisi.
Sweet orange scab

Lesions on fruit of Citrus paradisi.

Lesions on fruit of Citrus reticulata .

Lesions on fruit of Citrus reticulata.
Sweet orange scab

Lesions on fruit of Citrus reticulata.

Lesions on fruit of Citrus reticulata .

Lesions on fruit of Citrus reticulata.
Sweet orange scab

Lesions on fruit of Citrus reticulata.


Close-up of lesion on fruit of Citrus sinensis .

Close-up of lesion on fruit of Citrus sinensis.
Sweet orange scab

Close-up of lesion on fruit of Citrus sinensis.

Lesions on leaf of Citrus sinensis .

Lesions on leaf of Citrus sinensis.
Sweet orange scab

Lesions on leaf of Citrus sinensis.

Lesions on leaf of Citrus sinensis .

Lesions on leaf of Citrus sinensis.
Sweet orange scab

Lesions on leaf of Citrus sinensis.

Lesions on fruit.

Lesions on fruit.
Sweet orange scab

Lesions on fruit.


Close-up of lesions on leaf.

Close-up of lesions on leaf.
Sweet orange scab

Close-up of lesions on leaf.

Close-up of lesions on leaf.

Close-up of lesions on leaf.
Sweet orange scab

Close-up of lesions on leaf.

Lesions on leaf.

Lesions on leaf.
Sweet orange scab

Lesions on leaf.

Lesions on fruit.

Lesions on fruit.
Sweet orange scab

Lesions on fruit.


Close-up of lesions on tangelo.

Close-up of lesions on tangelo.
Sweet orange scab

Close-up of lesions on tangelo.

Lesions on tangelo.

Lesions on tangelo.
Sweet orange scab

Lesions on tangelo.

Leaf lesions on Fortunella leaves.

Leaf lesions on Fortunella leaves.
Sweet orange scab

Leaf lesions on Fortunella leaves.

Honeycomb pattern of stem pitting symptomatic of tristeza

Honeycomb pattern of stem pitting symptomatic of tristeza
Tristeza

Honeycomb pattern of stem pitting symptomatic of tristeza


Stem-pitting on grapefruit symptomatic of tristeza

Stem-pitting on grapefruit symptomatic of tristeza

Tristeza

Stem-pitting on grapefruit symptomatic of tristeza

Stem pitting symptomatic of tristeza on Rangpur lime root

Stem pitting symptomatic of tristeza on Rangpur lime root

Tristeza

Stem pitting symptomatic of tristeza on Rangpur lime root

Branch symptoms - lime branches showing pitting.

Branch symptoms - lime branches showing pitting.
Tristeza

Branch symptoms - lime branches showing pitting.

Leaf symptoms - Seedling Yellows.

Leaf symptoms - Seedling Yellows.
Tristeza

Leaf symptoms - Seedling Yellows.


Leaf symptoms - Seedling Yellows.

Leaf symptoms - Seedling Yellows.
Tristeza

Leaf symptoms - Seedling Yellows.

Chlorotic leaf flecking symptoms of tristeza. Chlorotic leaf flecking symptoms of tristeza.
Tristeza
Chlorotic leaf flecking symptoms of tristeza.
Leaf symptoms - Vein-clearing in key lime leaves.

Leaf symptoms - Vein-clearing in key lime leaves.
Tristeza

Leaf symptoms - Vein-clearing in key lime leaves.

A mild reaction of vein clearing on a leaf. Courtesy EcoPort ( http://www.ecoport.org ), Roistacher, C.N.

A mild reaction of vein clearing on a leaf. Courtesy EcoPort (http://www.ecoport.org), Roistacher, C.N.
Tristeza

A mild reaction of vein clearing on a leaf. Courtesy EcoPort (http://www.ecoport.org), Roistacher, C.N.


Vein-clearing symptoms a Mexican lime seedling leaf (right) as viewed from the back of the leaf into direct sunlight. The control leaf is on the left. Courtesy EcoPort ( http://www.ecoport.org )

Vein-clearing symptoms a Mexican lime seedling leaf (right) as viewed from the back of the leaf into direct sunlight. The control leaf is on the left. Courtesy EcoPort ( http://www.ecoport.org)
Tristeza

Vein-clearing symptoms a Mexican lime seedling leaf (right) as viewed from the back of the leaf into direct sunlight. The control leaf is on the left. Courtesy EcoPort ( http://www.ecoport.org)

Tree symptom - quick decline.

Tree symptom - quick decline.
Tristeza

Tree symptom - quick decline.

Tree symptom - severe quick decline.

Tree symptom - severe quick decline.
Tristeza

Tree symptom - severe quick decline.

Tree symptom - Trees in decline along side healthy trees.

Tree symptom - Trees in decline along side healthy trees.
Tristeza

Tree symptom - Trees in decline along side healthy trees.


Tree symptom - quick decline.

Tree symptom - quick decline.
Tristeza

Tree symptom - quick decline.

Tree symptom - quick decline.

Tree symptom - quick decline.
Tristeza

Tree symptom - quick decline.

Stem Pitting on trunk.

Stem Pitting on trunk.
Tristeza

Stem Pitting on trunk.

Tree symptom - quick decline at graft union.

Tree symptom - quick decline at graft union.
Tristeza

Tree symptom - quick decline at graft union.


Quick Decline on fruit.

Quick Decline on fruit.
Tristeza

Quick Decline on fruit.

Fruit from a Marsh grapefruit tree on rough lemon rootstock in Colombia affected by stem pitting strains of tristeza. The large fruit on the right is not affected. Courtesy EcoPort ( http://www.ecoport.org )

Fruit from a Marsh grapefruit tree on rough lemon rootstock in Colombia affected by stem pitting strains of tristeza. The large fruit on the right is not affected. Courtesy EcoPort ( http://www.ecoport.org)
Tristeza

Fruit from a Marsh grapefruit tree on rough lemon rootstock in Colombia affected by stem pitting strains of tristeza. The large fruit on the right is not affected. Courtesy EcoPort ( http://www.ecoport.org)

Fruit in top row is from an uninfected tree, fruit in bottom row from a tree showing stem pitting. Star Ruby trees on rough lemon rootstock. Courtesy EcoPort ( http://www.ecoport.org )

Fruit in top row is from an uninfected tree, fruit in bottom row from a tree showing stem pitting. Star Ruby trees on rough lemon rootstock. Courtesy EcoPort ( http://www.ecoport.org)
Tristeza

Fruit in top row is from an uninfected tree, fruit in bottom row from a tree showing stem pitting. Star Ruby trees on rough lemon rootstock. Courtesy EcoPort ( http://www.ecoport.org)