DISEASE: Bacterial pustule
HOST: Soybean
Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.
Bacterial pustule | Soybean
DISEASE: Bacterial pustule
HOST: Soybean (Glycine max)
PATHOGEN: Xanthomonas axonopodis pv. glycines
PATHOGEN SYNONYM: Xanthomonas campestris pv. glycines
SOURCE: APS
DISEASE: Brown rot (Bacteral wilt)
HOST: Potato
Wilted, stunted plants with yellowing foliage.
Brown rot (Bacteral wilt) | Potato
DISEASE: Brown rot (Bacteral wilt)
HOST: Potato (Solanum tuberosum)
PATHOGEN: Ralstonia solanacearum
PATHOGEN SYNONYM: Pseudomonas solanacearum
SOURCE: D. P. Weingartner
DISEASE: Brown rot (Bacteral wilt)
HOST: Potato
External symptoms of the disease.
Brown rot (Bacteral wilt) | Potato
DISEASE: Brown rot (Bacteral wilt)
HOST: Potato (Solanum tuberosum)
PATHOGEN: Ralstonia solanacearum
PATHOGEN SYNONYM: Pseudomonas solanacearum
SOURCE: D. Thurston
DISEASE: Brown rot (Bacteral wilt)
HOST: Potato
Tubers with distinct grayish brown rings and bacterial ooze from vascular tissues.
Brown rot (Bacteral wilt) | Potato
DISEASE: Brown rot (Bacteral wilt)
HOST: Potato (Solanum tuberosum)
PATHOGEN: Ralstonia solanacearum
PATHOGEN SYNONYM: Pseudomonas solanacearum
SOURCE: A. Hayward
DISEASE: Citrus variegated chlorosis
HOST: Citrus (sp. unknown)
Leaf with chlorosis in interveinal spaces and brown spots visible on lower leaf surface.
Citrus variegated chlorosis | Citrus (sp. unknown)
DISEASE: Citrus variegated chlorosis
HOST: Citrus (sp. unknown) (Citrus sp.)
PATHOGEN: Xylella fastidiosa
SOURCE: M. J. G. Beretta
DISEASE: Citrus variegated chlorosis
HOST: Citrus (sp. unknown)
Interveinal chlorosis on upper side of leaves.
Citrus variegated chlorosis | Citrus (sp. unknown)
DISEASE: Citrus variegated chlorosis
HOST: Citrus (sp. unknown) (Citrus sp.)
PATHOGEN: Xylella fastidiosa
SOURCE: M. J. G. Beretta
DISEASE: Citrus variegated chlorosis
HOST: Citrus (sp. unknown)
Leafhopper (Oncometopia nigricans) vector of Xylella fastidiosa, which transmits citrus variegated chlorosis.
Citrus variegated chlorosis | Citrus (sp. unknown)
DISEASE: Citrus variegated chlorosis
HOST: Citrus (sp. unknown) (Citrus sp.)
PATHOGEN: Xylella fastidiosa
SOURCE: D. Hopkins
DISEASE: Citrus variegated chlorosis
HOST: Citrus (Orange)
Small, hard, diseased fruit interspersed with three normal fruits for comparison. Diseased fruit often exhibit sunburn symptoms.
Citrus variegated chlorosis | Citrus (Orange)
DISEASE: Citrus variegated chlorosis
HOST: Citrus (Orange) (Citrus sinensis)
PATHOGEN: Xylella fastidiosa
SOURCE: M. J. G. Beretta
DISEASE: Citrus variegated chlorosis
HOST: Citrus (Orange)
Diseased tree with sparse foliage.
Citrus variegated chlorosis | Citrus (Orange)
DISEASE: Citrus variegated chlorosis
HOST: Citrus (Orange) (Citrus sinensis)
PATHOGEN: Xylella fastidiosa
SOURCE: S. Purcell