DISEASE: Aster yellows
HOST: Kalanchoe
Kalanchoe with malformed inflorescences.
Aster yellows | Kalanchoe
DISEASE: Aster yellows
HOST: Kalanchoe (Kalanchoe sp.)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: R. Raabe
DISEASE: Bacterial blight
HOST: Photinia
Symptoms of photinia bud blight shown here are similar to those of blast of pear and apple, caused by Pseudomonas syringae pv. syringae.
Bacterial blight | Photinia
DISEASE: Bacterial blight
HOST: Photinia (Photinia glabra)
PATHOGEN: Pseudomonas syringae pv. photiniae
SOURCE: M. Goto
DISEASE: Bacterial leaf spot
HOST: Rhododendron
Leaf with light brown, irregularly shaped spots.
Bacterial leaf spot | Rhododendron
DISEASE: Bacterial leaf spot
HOST: Rhododendron (Rhododendron catawbiense 'Album')
PATHOGEN: Pseudomonas cichorii
SOURCE: W. Uddin, W. Sinclair
DISEASE: Fire blight
HOST: Photinia
Fire blight cankers on photinia.
Fire blight | Photinia
DISEASE: Fire blight
HOST: Photinia (Photinia fraseri)
PATHOGEN: Erwinia amylovora
SOURCE: M. Schroth
DISEASE: Fire blight
HOST: Photinia
Typical crook neck symptom of infected shoot.
Fire blight | Photinia
DISEASE: Fire blight
HOST: Photinia (Photinia fraseri)
PATHOGEN: Erwinia amylovora
SOURCE: M. Schroth