DISEASE: Bacterial blast and black pit
HOST: Citrus (Lemon)
The term "black pit" refers to black lesions on fruit, which may be specks or large, sunken pits as seen here. They also may be light tan, later becoming reddish brown to black.
Bacterial blast and black pit | Citrus (Lemon)
DISEASE: Bacterial blast and black pit
HOST: Citrus (Lemon) (Citrus limon)
PATHOGEN: Pseudomonas syringae pv. syringae
SOURCE: J. Menge
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Begonia
Leafy gall on stem.
Bacterial fasciation (Leafy gall) | Begonia
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Begonia (Begonia sp.)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Geesteranus, J. van der Wolf
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia
Initial symptoms appear as small, blisterlike lesions. As lesions age, they enlarge, producing broad patches of necrotic leaf tissue.
Bacterial leaf spot (Blight) | Begonia
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia (Begonia sp.)
PATHOGEN: Xanthomonas axonopodis pv. begoniae
PATHOGEN SYNONYM: Xanthomonas campestris pv. begoniae
SOURCE: APS
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia
Advanced stage of disease with dark, large necrotic areas on leaves and interveinal chlorosis.
Bacterial leaf spot (Blight) | Begonia
DISEASE: Bacterial leaf spot (Blight)
HOST: Begonia (Begonia sp.)
PATHOGEN: Xanthomonas axonopodis pv. begoniae
PATHOGEN SYNONYM: Xanthomonas campestris pv. begoniae
SOURCE: APS
DISEASE: Citrus canker
HOST: Citrus (Lemon)
Lower leaf with raised, corkylike lesions surrounded by dark brown halos, one of the diagnostic symptoms of citrus canker.
Citrus canker | Citrus (Lemon)
DISEASE: Citrus canker
HOST: Citrus (Lemon) (Citrus limon)
PATHOGEN: Xanthomonas citri subsp. citri
PATHOGEN SYNONYM: Xanthomonas citri
SOURCE: T. Gottwald
DISEASE: Fire blight
HOST: Pluot
Fire blight cankers on major limb. Pluot is an interspecific hybrid of plum and apricot.
Fire blight | Pluot
DISEASE: Fire blight
HOST: Pluot (Prunus hybrid 'Dandy Dapple')
PATHOGEN: Erwinia amylovora
SOURCE: S. Mohan
DISEASE: Fire blight
HOST: Pluot
Dead shoot, the result of systemic infection.
Fire blight | Pluot
DISEASE: Fire blight
HOST: Pluot (Prunus hybrid 'Dandy Dapple')
PATHOGEN: Erwinia amylovora
SOURCE: S. Mohan
DISEASE: Fire blight
HOST: Pluot
Typical symptoms of fire blight-infected shoot.
Fire blight | Pluot
DISEASE: Fire blight
HOST: Pluot (Prunus hybrid 'Dandy Dapple')
PATHOGEN: Erwinia amylovora
SOURCE: S. Mohan