DISEASE: Bacterial blight
HOST: Tulip
The disease causes white veins of leaves, yellow vascular bundles, and yellow bacterial slime on bulbs.
Bacterial blight | Tulip
DISEASE: Bacterial blight
HOST: Tulip (Tulipa sp. 'Paul Richter')
PATHOGEN: Curtobacterium flaccumfaciens pv. oortii
PATHOGEN SYNONYM: Corynebacterium flaccumfaciens subsp. oortii
SOURCE: M. Geesteranus, J. van der Wolf
DISEASE: Bacterial blight
HOST: Tulip
Stunted plants with wrinkled leaves.
Bacterial blight | Tulip
DISEASE: Bacterial blight
HOST: Tulip (Tulipa sp. 'Paul Richter')
PATHOGEN: Curtobacterium flaccumfaciens pv. oortii
PATHOGEN SYNONYM: Corynebacterium flaccumfaciens subsp. oortii
SOURCE: M. Geesteranus, J. van der Wolf
DISEASE: Bacterial leaf spot
HOST: Croton
Tan, irregular-sized lesions on lower leaf surfaces.
Bacterial leaf spot | Croton
DISEASE: Bacterial leaf spot
HOST: Croton (Codiaeum variegatum var. pictum)
PATHOGEN: Xanthomonas axonopodis pv. poinsettiicola
PATHOGEN SYNONYM: Xanthomonas campestris pv. poinsettiicola
SOURCE: J. Yuen
DISEASE: Bacterial leaf spot
HOST: Crown-of-thorns
Leaves with brown lesions surrounded by bright yellow halos.
Bacterial leaf spot | Crown-of-thorns
DISEASE: Bacterial leaf spot
HOST: Crown-of-thorns (Euphorbia milii)
PATHOGEN: Xanthomonas axonopodis pv. poinsettiicola
PATHOGEN SYNONYM: Xanthomonas campestris pv. poinsettiicola
SOURCE: APS
DISEASE: Bacterial leaf spot
HOST: Poinsettia
Leaves with reddish brown blighted areas and spots. Severely spotted leaves turn yellow and dehisce.
Bacterial leaf spot | Poinsettia
DISEASE: Bacterial leaf spot
HOST: Poinsettia (Euphorbia pulcherrima)
PATHOGEN: Xanthomonas axonopodis pv. poinsettiicola
PATHOGEN SYNONYM: Xanthomonas campestris pv. poinsettiicola
SOURCE: A. Chase
DISEASE: Ratoon stunt
HOST: Sugarcane
Necrotic, reddish vascular bundles in node of sliced stalk, a diagnostic symptom.
Ratoon stunt | Sugarcane
DISEASE: Ratoon stunt
HOST: Sugarcane (Saccharum officinarum)
PATHOGEN: Leifsonia xyli subsp. xyli
SOURCE: D. Teakle
DISEASE: Ratoon stunt
HOST: Sugarcane
Disease of susceptible cultivar L62-96 (right). External symptoms are characterized by stunting and poor growth.
Ratoon stunt | Sugarcane
DISEASE: Ratoon stunt
HOST: Sugarcane (Saccharum officinarum)
PATHOGEN: Leifsonia xyli subsp. xyli
SOURCE: A. Gillaspie, M. Davis
DISEASE: Ratoon stunt
HOST: Sugarcane
Red discoloration just below nodal tissues is a symptom in mature stalks of 'L41-233'.
Ratoon stunt | Sugarcane
DISEASE: Ratoon stunt
HOST: Sugarcane (Saccharum officinarum)
PATHOGEN: Leifsonia xyli subsp. xyli
SOURCE: A. Gillaspie, M. Davis
DISEASE: Ratoon stunt
HOST: Sugarcane
Row of disease 'Trojan' plants (left). Healthy row (right).
Ratoon stunt | Sugarcane
DISEASE: Ratoon stunt
HOST: Sugarcane (Saccharum officinarum 'Trojan')
PATHOGEN: Leifsonia xyli subsp. xyli
SOURCE: D. Teakle