DISEASE: Bacterial blight
HOST: Parsnip
Parsnip with severe blight symptoms. There also is browning of the vascular system. Rot may progress from the crown into roots.
Bacterial blight | Parsnip
DISEASE: Bacterial blight
HOST: Parsnip (Pastinaca sativa)
PATHOGEN: Pseudomonas viridiflava
SOURCE: J. Hunter
DISEASE: Fire blight
HOST: Scarlet firethorn
Pyracantha with blighted twig. Ingress was probably through blossoms. Cankers commonly occur on branches.
Fire blight | Scarlet firethorn
DISEASE: Fire blight
HOST: Scarlet firethorn (Pyracantha coccinea)
PATHOGEN: Erwinia amylovora
SOURCE: W. Sinclair
DISEASE: Foamy canker
HOST: Koa
Foamy canker of koa is associated with bacteria and yeast. The causal agent has not been identified.
Foamy canker | Koa
DISEASE: Foamy canker
HOST: Koa (Acacia koa)
PATHOGEN: Causal agent unknown
SOURCE: H. Keyser
DISEASE: Foamy canker
HOST: Koa
Dieback of koa tree. The causal agent has not been identified.
Foamy canker | Koa
DISEASE: Foamy canker
HOST: Koa (Acacia koa)
PATHOGEN: Causal agent unknown
SOURCE: H. Keyser