Insects of Southern Australian Broadacre Farming Systems - Grains ...

Management options
Thresholds for control options:
• Cereals at seedling growth stage - 20 snails/m 2
• Pulses and canola at seedling - 5 snails/m 2
Biological Cultural Chemical
Carabid beetles are known
predators and can help suppress
populations.
Stubble management includes
cabling, rolling and slashing. Use these
techniques post harvest, after midmorning
on hot days over 35 o C. Ideally
this should be done when several
hot days will follow. Control summer
weeds prior to stubble management.
Around 50-90% kill can be achieved
when temperatures are over 35 o C.
This is less effective in dense cereal
stubbles.
Burning is best undertaken early in the
burn season. Aim for an even paddock
burn. Around 80-100% kill can be
achieved with an even burn and about
50-80% kill with a patchy burn.
Note the potential risk for soil erosion
with these methods.
Summer weed control especially along
fence lines and borders.
Molluscicidal baits can be used
effectively in autumn to control
mature snails across the whole
paddock. Start baiting when
moisture triggers snail activity in
autumn and before significant egglaying.
Repeat applications may be
needed after monitoring. Around 60-
90% kill can be achieved depending
on timing, snail activity and bait
application rate.
Fence line and border baiting can be
effective after autumn rains when
snails are moving from aestivation
sites.
Ute Guides, Southern (pp. 92-93)/ Western (pp. 72-73).
SECTION 4 COMMON Pest, Beneficial AND EXOTIC Species
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Insects of Southern Australian Broadacre Farming Systems Identification Manual and Education Resource © 2012