DISEASE: Aster yellows
HOST: Zinnia
Yellowing and shoot proliferation of foliage.
Aster yellows | Zinnia
DISEASE: Aster yellows
HOST: Zinnia (Zinnia violacea)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: J. Forsberg, M. Shurtleff
DISEASE: Bacterial canker
HOST: Loquat
Branch with cankers.
Bacterial canker | Loquat
DISEASE: Bacterial canker
HOST: Loquat (Eriobotrya japonica)
PATHOGEN: Pseudomonas syringae pv. eriobotryae
SOURCE: M. Schroth
DISEASE: Bacterial leaf spot
HOST: Cowpea
Leaf spots vary in size from small to large and some fall out in time, leaving a shot-hole appearance.
Bacterial leaf spot | Cowpea
DISEASE: Bacterial leaf spot
HOST: Cowpea (Vigna unguiculata)
PATHOGEN: Xanthomonas axonopodis pv. vignicola
PATHOGEN SYNONYM: Xanthomonas campestris pv. vignicola
SOURCE: R. Gitaitis
DISEASE: Bacterial leaf spot
HOST: Cowpea
Leaves with large, light brown necrotic areas.
Bacterial leaf spot | Cowpea
DISEASE: Bacterial leaf spot
HOST: Cowpea (Vigna unguiculata)
PATHOGEN: Xanthomonas axonopodis pv. vignicola
PATHOGEN SYNONYM: Xanthomonas campestris pv. vignicola
SOURCE: R. Gitaitis
DISEASE: Bacterial leaf spot
HOST: Zinnia
Leaf with small, brown spots.
Bacterial leaf spot | Zinnia
DISEASE: Bacterial leaf spot
HOST: Zinnia (Zinnia violacea)
PATHOGEN: Xanthomonas campestris pv. zinniae
SOURCE: M. Goto
DISEASE: Bacterial leaf spot
HOST: Zinnia
Leaf with blackish, necrotic, angular spots.
Bacterial leaf spot | Zinnia
DISEASE: Bacterial leaf spot
HOST: Zinnia (Zinnia violacea)
PATHOGEN: Xanthomonas campestris pv. zinniae
SOURCE: M. Daughtrey
DISEASE: Fire blight
HOST: Loquat
Shoot blight of loquat.
Fire blight | Loquat
DISEASE: Fire blight
HOST: Loquat (Eriobotrya japonica)
PATHOGEN: Erwinia amylovora
SOURCE: S. Manulis
DISEASE: Fire blight
HOST: Loquat
Fire blight-infected fruit.
Fire blight | Loquat
DISEASE: Fire blight
HOST: Loquat (Eriobotrya japonica)
PATHOGEN: Erwinia amylovora
SOURCE: S. Manulis
DISEASE: Fire blight
HOST: Loquat
Twig with reddish brown leaves, some dead, and blackened stem.
Fire blight | Loquat
DISEASE: Fire blight
HOST: Loquat (Eriobotrya japonica)
PATHOGEN: Erwinia amylovora
SOURCE: S. Manulis