PLANT PROTECTION 1 – Pests, Diseases and Weeds

PLANT PROTECTION 1 – Pests, Diseases and Weeds
LIST OF SOME
BACTERIAL
COMMON NAME SCIENTIFIC NAME
(alphabetical order)
DISEASES Crown gall Agrobacterium spp.
(used to transfer genes into
plants, insects etc)
Synonym
Pectobacterium
carotovorum subsp.
carotorum
Not known
in Australia
Rots may also be
caused by fungi and
environmental agents
Not known
in Australia
Eradicated
from Australia
Not known
in Australia
Not known
in Australia
HOST RANGE
(not exhaustive)
Wide range especially stone
fruits, roses. Not all strains
infect all hosts
Bacterial canker Clavibacter michiganense
subsp. michiganense
Tomato, capsicum, blackberry
nightshade
Bacterial soft rot Ewinia carotovora pv.
carotovora
Field and postharvest rots of
carrot, potato, iris
Bacterial soft rot E. carotovora pv.
atroseptica
As above but mostly restricted
to potato
Fireblight (in NZ) Erwinia amylovora Apple, pear, related plants, eg
hawthorn, pyracantha, Sorbus,
quince, loquat, cotoneaster
Soft rot
Erwinia chrysanthemi and
Foz (Fusarium oxysporum
f.sp. zingiberi)
Ginger seed after planting.
Many soil diseases may involve
one or several agents.
Bacterial wilts (S*), Ralstonia solanacearum Asteraceae, Solanaceae (tomato,
moko, bugtok and complex
potato), Fabaceae (legumes),
blood disease
Musaceae (bananas)
Leaf spots, streaks Pseudomonas andropogonis Carnation, clover, vetch, others
Soft rot of onion
Leaf spot & corm
scab of gladioli
Seedling blight of
snapdragon
Black spot of
delphinium
P. gladioli pv. alliicola
P. gladioli pv. gladioli
P. syringae pv. antirrhini Snapdragon
P. syringae pv. delphinii Delphinium
Onion
Gladiolus, freesia, crocus, other
Iridaceae
Bud rot of loquat P. syringae pv. eriobotryae Loquat
Bacterial leaf spot of
sunflower
P. syringae pv. helianthi Sunflower
Angular leaf spot of
cucurbits (S)
P. syringae pv. lachrymans Cucurbits
Peppery leaf of
crucifers (S)
P. syringae pv. maculicola Cucurbits
Bacterial blight of
mulberry
P. syringae pv. mori Mulberry
Grease-spot of
passionfruit
P. syringae pv. passiflorae Passionfruit
Halo blight of bean
(S)
P syringae pv. phaseolicola Bean, other Phaseolus spp.,
related legumes
Bacterial blight of
pea (S)
P. syringae pv. pisi Field and garden peas
Bacterial leaf spot of P. syringae pv. primulae
primula, polyanthus (S)
Primula spp.
Bacterial canker of
stone fruit, gummosis
P. syringae pv. syringae Wide range, eg stone fruits,
citrus, hibiscus
Bacterial canker of P. syringae pv.
Cherry, plum
stone fruit, gummosis morsprunorum
Bacterial gall of
oleander
P. savastanoi pv. nerii Oleander
Olive knot P. savastanoi pv.savastonoi Olives, possibly plants in the
same family
Common scab Streptomyces scabies Potato
Citrus greening,
huanglongbing,
yellow dragon
Citrus canker
Candidatus Liberobacter spp
Xanthomonas axonopodis
pv. citri
Xylella bacterium
All citrus. Spread by a psyllid (not
in Australia), budding, grafting
Citrus, other Rutaceae. Spread by
rain, wind, people, plant parts
Citrus, other woody plants
Citrus variegated
chlorosis (CVC)
Pierce’s disease X. fastidiosa Grapes, fruit and ornamental
trees and shrubs, etc. Spread by
glassy-winged sharpshooter
(S) Indicates that the disease is seedborne
Bacterial diseases 297