DISEASE: Bacterial blight and rot
HOST: Aloe
Mushy, tannish brown rot on stem at crown region.
Bacterial blight and rot | Aloe
DISEASE: Bacterial blight and rot
HOST: Aloe (Aloe vera)
PATHOGEN: Dickeya sp.
PATHOGEN SYNONYM: Erwinia chrysanthemi
SOURCE: A. Chase
DISEASE: Crown gall
HOST: Euonymus
Dark, rough galls at base of euonymus.
Crown gall | Euonymus
DISEASE: Crown gall
HOST: Euonymus (Euonymus sp.)
PATHOGEN: Agrobacterium tumefaciens
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: L. Claflin
DISEASE: Pear decline
HOST: Pear
'Bartlett' pears were grafted onto tolerant rootstock. All trees are infected. Note yellowish, diseased branches.
Pear decline | Pear
DISEASE: Pear decline
HOST: Pear (Pyrus communis 'Bartlett')
PATHOGEN: 'Candidatus Phytoplasma pyri'
PATHOGEN SYNONYM: Phytoplasma Apple proliferation group
SOURCE: C. Smart