Leaf lesions.

Fruit lesions.

Fruit lesions.

Close-up of fruit lesion.

Close-up of fruit lesion.

Close-up of fruit lesion.

Close-up of fruit lesion.

Close-up of leaf lesion.

Close-up of leaf lesion.

Leaf lesions.

Symptoms on fruit.

Symptoms on fruit and leaf.

Symptoms on leaf.

Symptoms on leaf (top surface).

Symptoms on leaf (bottom surface).

Soft brown decay at the stem end of a Meyer lemon fruit.

Leaf symptom - variegation as a result of chimera mutation on Valencia orange leaves.

Segmented coloration on fruit as a result of chimera mutation.

Chimera on orange rind (fruit).

Leaf lesions.

Leaf lesions on Red grapefruit cultivar.

Leaf lesions on Red grapefruit cultivar.

Leaf lesions on Red grapefruit cultivar.

Leaf lesions on Red grapefruit cultivar.

Leaf lesions on Red grapefruit cultivar.

Hard spot form of citrus black spot on fruit.

Citrus Black Spot symptoms are frequently numerous and irregularly distributed on the fruit peel.

Pycnidia in center of lesions on fruit.

False melanose form of citrus black spot on fruit.

Early virulent form of citrus black spot on fruit.

Cracked spot form of citrus black spot on fruit.

Advanced stage of a hard spot lesion showing a tan center and the brick-red raised border on fruit.

"Freckle spot" symptom type or "early virulent spot". Reddish or colorless spots on fruit lacking a halo which are a sign of heavy infection.

Close up of "freckle spot" symptom type or "early virulent spot" on fruit. Reddish or colorless spots lacking a halo which are a sign of heavy infection.

"Virulent spot" symptom type. Fusion and expansion of many lesions covering part of the surface of heavy infected fruit giving a lathery appearance.

"Cracked spot" symptom type on fruit. Lesions with cracked surface and irregular margins.

Close up of "Cracked spot" symptom type on fruit. Lesions with cracked surface and irregular margins.

Symptom on green fruit that can become hard spots later in the season.

Symptom on green fruit that can become hard spots later in the season.

"Hard spot" symptom type on fruit. This is the most typical symptom of CBS. Usually appears between the beginning of yellow coloration and maturity.

"Hard spot" symptom type on fruit. This is the most typical symptom of CBS. Usually appears between the beginning of yellow coloration and maturity.

"Hard spot" symptom type on fruit. This is the most typical symptom of CBS. Usually appears between the beginning of yellow coloration and maturity.

Early stage of hard spot symptoms on fruit. Note green tissue surrounding the lesions.

Longitudinal section of a hard spot lesion on fruit.

Water-soaked ring on leaf lesion.

Concentric circles found on leaf lesions.

Close-up of lesions on front of grapefruit leaf.

Yellow halo surrounding leaf lesion.

Leaf lesions on grapefruit, top view.

Leaf lesions on grapefruit, bottom view.

Leaf lesions on grapefruit, chlorotic halo.

Symptoms on leaf.

Whole leaf symptoms on top and bottom of grapefruit leaves.

Fruit lesion with center cracking; Photo by Jeffrey W. Lotz, Florida Dep. of Ag. and Consumer Services,

Grapefruit, fruit lesions.

Fruit, leaf, and stem canker lesions.

Symptoms on fruit.

Typical leaf, stem, and fruit symptoms on grapefruit.

Symptoms on sweet orange fruit.

Xanthomonas campestris pv. citri infection on fruit of Citrus unshiu (satsuma) showing crater-like lesions.

Symptoms on fruit (grapefruit).

Stem canker caused by Xanthomonas campestris pv. citri on Citrus natsudaidai.

Xanthomonas campestris pv. citri on stem of Citrus sp.; outer layer of bark removed to show brown lesions.

Leaf symptoms of CCDV.

Leaf symptom - chlorotic flecking on young leaves.

Leaf symptom - chlorotic flecking and warping on leaves.

Leaf symptom - gondol like leaves with inverted cupping on young leaves.

Leaf symptom - distorted, puckered both young and old leaves.

Leaf symptom - wrinkled/curled leaves with some bumpy areas.

Leaf symptom - distorted and warped mature leaves with nutrient deficiency.

Leaf symptoms on Red Blush grapefruit leaves. Courtesy EcoPort (http://www.ecoport.org), Kersting U.

Leaf symptoms of CCDV on leaves of Minneola tangelo. Courtesy EcoPort (http://www.ecoport.org), Kersting U.

The first symptom of citrus chlorotic dwarf on a leaf of a rough lemon seedling after inoculation. Note the notch on the left margin of the leaf, which is symptomatic for this disease. Courtesy EcoPort (»

Tree symptom on Fremont mandarin on sour orange rootstock 10 weeks after inoculation. Control is on the left. Courtesy EcoPort (http://www.ecoport.org), Kersting U.

Leaf symptoms - typical bent tip symptoms of CCDV on leaves of sour orange seedling. Courtesy EcoPort (http://www.ecoport.org), Kersting U.

A close-up of the v-notch on a leaf of a citrus chlorotic dwarf inoculated rough lemon seedling. Courtesy EcoPort (http://www.ecoport.org), Kersting U.

Leaf mottle and tip notches on rough lemon 10 weeks after inoculation with CCDV. Courtesy EcoPort (http://www.ecoport.org), Kersting U.

Pustules on fruit.

Symptoms on fruit.

Symptoms on fruit.

Symptoms on fruit.

Symptoms on fruit.

Symptoms on fruit.

Symptoms on leaf.

Common citrus scab on sour orange leaf. Note the scabby areas at the tip of the conical formations.

Close-up of scabby areas at the tip of conical formations on leaf.

Common citrus scab on sour orange leaf.

Early stage of common citrus scab on sour orange leaf.

Early stage of common citrus scab on sour orange leaf.

Advanced stage of citrus scab on sour orange.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf.

Symptoms on leaf.

Lopsided fruit.

Tree exhibiting irregular (off season) flowering.

Leaf chlorosis.

Leaf chlorosis.

Leaf chlorosis.