DISEASE: Aster yellows
HOST: Squash
Diagnostic characteristics for the disease are yellowing of young leaves, proliferation of secondary shoots, and rigid erect habit. Leaves are misshapen and smaller than normal and have stiff, thick laminae.
Aster yellows | Squash
DISEASE: Aster yellows
HOST: Squash (Cucurbita sp.)
PATHOGEN: 'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM: Phytoplasma Aster yellows group
SOURCE: S. Miller
DISEASE: Bacterial leaf spot
HOST: Radish
Leaf with brown lesions, some with a water-soaked appearance.
Bacterial leaf spot | Radish
DISEASE: Bacterial leaf spot
HOST: Radish (Raphanus sativus var. longipinnatus)
PATHOGEN: Pseudomonas syringae pv. maculicola
SOURCE: J. Togashi, M. Goto
DISEASE: Bacterial soft rot
HOST: Radish
Rot and collapse of internal root tissues.
Bacterial soft rot | Radish
DISEASE: Bacterial soft rot
HOST: Radish (Raphanus sativus var. longipinnatus)
PATHOGEN: Pectobacterium carotovorum
PATHOGEN SYNONYM: Erwinia carotovora subsp. carotovora
SOURCE: M. Goto
DISEASE: Sumatra disease
HOST: Clove
Diseased tree with defoliation and dieback.
Sumatra disease | Clove
DISEASE: Sumatra disease
HOST: Clove (Syzygium aromaticum)
PATHOGEN: Ralstonia syzygii
SOURCE: A. Hayward