DISEASE: Apple proliferation
HOST: Apple
Enlarged stipules are a characteristic symptom of the disease.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: W. Schweigkofler
DISEASE: Apple proliferation
HOST: Apple
Branch with shortened internodes that cause rosettes and witches’-brooms, typical of this disease.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: L. Kunze
DISEASE: Apple proliferation
HOST: Apple
Small apples are a characteristic symptom. The size of apples is best noted by comparing them with adjacent leaves.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: J. Vigl, W. Schweigkofler
DISEASE: Apple proliferation
HOST: Apple
Enlarged stipules are typical with some cultivars infected by the phytoplasma.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: J. Vigl, W. Schweigkofler
DISEASE: Apple proliferation
HOST: Apple
Leaves of diseased trees have a reddish color in late summer and early autumn.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: M. Wolf, W. Schweigkofler
DISEASE: Apple proliferation
HOST: Apple
Diseased foliage with reddish appearance of leaves.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: M. Wolf, W. Schweigkofler
DISEASE: Apple proliferation
HOST: Apple
Twig with shoot proliferation symptoms.
Apple proliferation | Apple
DISEASE: Apple proliferation
HOST: Apple (Malus domestica 'Golden Delicious')
PATHOGEN: 'Candidatus Phytoplasma mali'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: J. Vigl, W. Schweigkofler
DISEASE: Bacterial fasciation
HOST: Geranium
Plant with proliferation of shoots at crown.
Bacterial fasciation | Geranium
DISEASE: Bacterial fasciation
HOST: Geranium (Pelargonium grandiflorum)
PATHOGEN: Rhodococcus fascians
SOURCE: M. Daughtrey
DISEASE: Bacterial leaf streak
HOST: Ti
Leaf with reddish brown necrotic streaks, late stage of disease.
Bacterial leaf streak | Ti
DISEASE: Bacterial leaf streak
HOST: Ti (Cordyline terminalis)
PATHOGEN: Xanthomonas axonopodis pv. dieffenbachiae
PATHOGEN SYNONYM: Xanthomonas campestris pv. dieffenbachiae
SOURCE: A. Alvarez