Lupin disease reaction tables/guides

Table 9.1 Lupin variety disease reactions

  PLEIOCHAETA ROOT ROT BROWN LEAF STEM SPOT POD PHOMOPSIS ANTHRACNOSE
NARROW LEAF
Jenabillup R R MS R MS
Jindalee MR MR R R MS
Mandelup R MS R R MR
PBA Barlock   MS MR R R
PBA Gunyidi R MS R R MR-R
Quilinock R MR-MS MR S S-VS
Wonga R MS MR S R
ALBUS LUPIN
Kiev Mutant VS MR MR S VS
Luxor R MR MR S VS
Rosetta MR MR MR S VS

Disease tolerance: R = resistant MR = moderately resistant MS = moderately susceptible S = susceptible VS = very susceptible

Table 9.2 Lupin disease guide summary

Disease Organisms Symptoms Occurrence Inoculum
source
Control
Brown leaf spot Pleiochaeta
setosa
Dark spots on leaves and pods, leaves
drop off, lesions may girdle stem
Very common but losses usually
minor in dry areas, yield loss can
be significant in cool damp areas
Spores in soil
and lupin trash,
rainsplash and wind
blown rainrainsplash
and wind blown rain
Fungicide seed
dressings, crop
rotation, variety
selection, early
sowing
Pleiochaeta
root rot
Pleiochaeta
setosa
Browning and rotting of tap and lateral
roots, seedling plant death
Serious reduction in lupin plant
density and vigour
Spores in soil
infecting roots
usually at seedling
stage, spread also
by rainsplash
Rotation minimum
4 years between
lupins, sowing 4-5 cm
deep to avoid spore
layer, fungicide seed
dressings
Rhizoctonia Rhizoctonia spp. Bare patches in crop, spear tipped root
ends, hypocotyl rot and stain
Can be severe in isolated
patches, reduces stand density,
favoured by minimum tillage,
wet soils and mild conditions
Soil borne infection
on wide host range,
survives as fungal
fragments in soil and
plant debris
Tillage prior and
during sowing,
rotation has no effect,
increased seeding
rate
Anthracnose Colletotrichum
lupini
Stems bend over, sticky dark brown
lesions in crook of bend, pods and
leaves above crook twist and deform,
dark lesions with pale centres on leaves,
stems and pods
Severe infections can result in
complete crop failure
Spores surviving in
soil are transported
by vehicles,
machinery, animals
and people, spread
in crop by rainsplash
and wind
Clean seed and
machinery, 4 year
break between lupins,
resistant varieties,
fungicide seed
dressings reduce
seedling infection
Cucumber
mosaic virus
Virus All growth after infection is dwarfed,
leaflets are yellowed and bunched
Early widespread infection
severely reduces yield. Minor
infections prevent use of
harvested grain as seed
Seed borne infection
in narrow leaf lupin,
aphids transmit the
disease within a
crop
Sow clean
seed, use a
seed test, high
sowing rates and
cereal barriers
around crops
reduce aphid
transmission
Bean yellow
mosaic virus
Virus Brown streaks on stem, shepherd crook,
pods blackened and flat, plants wilt and
die
Occurs in all lupin growing
areas. Can be severe in higher
rainfall areas
Seed borne in albus,
aphid spread in crop,
many host species
Sow virus free seed.
High plant density,
cereal barrier

ANTHRACNOSE OF LUPINS

Viruses