DISEASE: Aster yellows
HOST: Chrysanthemum
Stunted diseased plant with small distorted flowers.
Aster yellows | Chrysanthemum
DISEASE: Aster yellows
HOST: Chrysanthemum (Chrysanthemum morifolium)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: B. Raju, M. Davis
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi
Diseased blossoms, a stage of bacterial canker.
Bacterial canker (Leaf and fruit spot) | Kiwi
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi (Actinidia chinensis)
PATHOGEN: Pseudomonas syringae pv. actinidiae
SOURCE: J. Young
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi
Leaf spot stage of the disease with small, brown lesions with yellow halos.
Bacterial canker (Leaf and fruit spot) | Kiwi
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi (Actinidia chinensis)
PATHOGEN: Pseudomonas syringae pv. actinidiae
SOURCE: M. Goto
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi
Leaf spots on young leaves. Note dark brown to black lesions on lower surface (left) and similar lesions on upper surface but with yellow halos (right).
Bacterial canker (Leaf and fruit spot) | Kiwi
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi (Actinidia chinensis)
PATHOGEN: Pseudomonas syringae pv. actinidiae
SOURCE: J. Young
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi
Rusty-colored exudate oozing from cankers on infected trunk.
Bacterial canker (Leaf and fruit spot) | Kiwi
DISEASE: Bacterial canker (Leaf and fruit spot)
HOST: Kiwi (Actinidia chinensis)
PATHOGEN: Pseudomonas syringae pv. actinidiae
SOURCE: M. Goto
DISEASE: Bacterial dieback of nectarine
HOST: Nectarine
Fruit lesions is another symptom of this disease.
Bacterial dieback of nectarine | Nectarine
DISEASE: Bacterial dieback of nectarine
HOST: Nectarine (Prunus persica var. nucipersica 'Redgold')
PATHOGEN: Pseudomonas syringae pv. persicae
SOURCE: J. Young
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Chrysanthemum
Fasciation of chrysanthemum.
Bacterial fasciation (Leafy gall) | Chrysanthemum
DISEASE: Bacterial fasciation (Leafy gall)
HOST: Chrysanthemum (Chrysanthemum morifolium)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Schroth
DISEASE: Bacterial spot
HOST: Nectarine
Nectarine with necrotic spots on leaves and dark necrotic spots on fruit.
Bacterial spot | Nectarine
DISEASE: Bacterial spot
HOST: Nectarine (Prunus persica var. nucipersica 'Redgold')
PATHOGEN: Xanthomonas arboricola pv. pruni
PATHOGEN SYNONYM: Xanthomonas campestris pv. pruni
SOURCE: J. Young
DISEASE: Bacterial wilt and blight
HOST: Chrysanthemum
Plants with characteristic symptoms of wilt.
Bacterial wilt and blight | Chrysanthemum
DISEASE: Bacterial wilt and blight
HOST: Chrysanthemum (Chrysanthemum morifolium)
PATHOGEN: Dickeya sp.
PATHOGEN SYNONYM: Erwinia chrysanthemi
SOURCE: A. Alvarez