Leaf chlorosis and branch dieback.

Leaf chlorosis.

Fruit drop.

Stunted tree.

Tree exhibiting irregular flowering.

Top row- unaffected seeds; bottom row- seeds affected by CSD.

Barnfield Navel Carrizo tree showing severe stunting and tip dieback.

Barnfield Navel tree showing bunchy growth and leaf chlorosis.

T1 Navel Carrizo tree showing stunting and premature fruit drop.

Leaves affected by CSD.

T1 Navel fruit; far right uninfected; others infected with CSD.

T1 Navel fruit: right group uninfected; left group infected with CSD.

T1 Navel tree showing mature fruit and off season flowering.

Whole-tree symptoms.

Fruit symptoms.

Close-up of fruit symptoms.

Symptoms on top side of leaf.

Symptoms on underside of leaf.

Close-up of lesions on underside of leaf.

Fruit and leaf symptoms - CVC affected fruit and leaves on left. Unaffected fruit and leaves on right.

Leaf symptoms.

Regular size fruit on left, CVC affected fruit on right.

Leaf symptoms of greasy spot.

A leaf sample with greasy spot.

Leaf symptoms of greasy spot.

Leaf symptoms of greasy spot.

Necrotic specks on fruit.

Close-up of necrotic specks on fruit.

Sweet orange fruit showing the color inversion symptom.

Small lopsided fruit with dark seeds and rind that does not color properly.

Lopsided fruit showing seed abortion and stain of the vascular columella.

Close-up of the stained vascular columella of a lopsided fruit.

Close-up of aborted seeds.

Close-up of yellow shoot on tree.

Yellowing of a quadrant of a citrus tree due to greening.

Leaf chlorosis on citrus due to greening.

HLB leaf symptoms on the citrus relative Severinia buxifolia.

Leaf symptoms - top surface of Citrus aurantium (sour orange) showing classic HLB mottling.

Leaf symptoms - bottom surface of Citrus aurantium (sour orange) showing classic HLB mottling.

Leaf symptom - asymmetrical pattern of the HLB mottling on Citrus macrophylla (alemow).

Mottling that crosses the leaf lateral veins.

Mottling that crosses the leaf lateral veins.

Mottling that crosses the leaf lateral veins.

Leaf symptom - HLB mottling progression on Citrus aurantifolia (Persian lime) - Early.

Leaf symptom - HLB mottling progression on Citrus aurantifolia (Persian lime) - Middle.

Leaf symptom - HLB mottling progression on Citrus aurantifolia (Persian lime) - Advanced.

Leaf symptom - HLB symptoms on Citrus maxima (pummelo).

Leaf symptom - classic mottling on Citrus reticulata (tangerine).

Leaf symptom - classic mottling on Citrus reticulata (tangerine), (top surface).

Leaf symptom - classic mottling on Citrus reticulata (tangerine), (bottom surface).

Leaf symptom - on Citrus hystrix (Kaffir lime).

Corky veins on Citrus aurantium (sour orange) leaf.

Corky veins on Citrus aurantium (sour orange) leaf.

Yellow vein of a HLB infected Citrus reticulata (tangerine) leaf.

Leaf symptom - green islands on Citrus sinensis (sweet orange).

Leaf symptom - zinc deficiency like symptoms.

Citrus maxima (pummelo) tree with yellow shoot sectors.

Citrus maxima (pummelo) tree showing dieback.

Notching on leaf resulting from the Asian citrus psyllid feeding damage.

Symptoms on tree shoot.

Symptoms on fruit.

Symptoms on fruit.

Early symptoms on immature fruit.

Symptoms on fruit.

Symptoms on green fruit.

Symptoms on fruit.

Symptoms on fruit.

Symptoms on fruit.

Symptoms on fruit.

Fruit drop.

Lesions on stem.

Lesions on stem.

High magnification of lesions on the dead part of a branch.

Lesions on stem.

Close-up of lesions on the green part of a branch.

Symptoms on stem.

Lesions on stem and death of the distal part of the stem.

Symptoms on green stem.

Symptoms on leaf (top).

Symptoms on leaf (bottom).

Leaf symptoms.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf (top).

Symptoms on leaf (bottom).

Symptoms on leaf and fruit.

Leaf symptoms.

Leaf symptoms.

Older fully expanded leaf with fully developed lesions.

Symptoms of chlorosis with brown gummy center and early symptoms on leaf petiole.

Symptoms on fully expanded older leaf.

Symptoms on mature leaf.

Young leaf with what appears to be developing lesions.

Leaf symptoms.

Symptoms on leaf.

Fruit lesions.

Leaf lesions.

Lime anthracnose symptoms. Shoot die-back and lesions on key lime leaf and fruit.

Lime anthracnose on key lime leaf (top surface).

Lime anthracnose on key lime leaf, (bottom surface).

Mal secco symptoms on a Citrus medica branch.

Mal secco sectorial branch wilt of lemon tree.

Leaf yellowing and shading and branch die back on lemon tree.