Pulse crops - insect threshold levels

Pest Control thresholds Sampling recomendation Additional notes
Caterpillars: brown pasture looper 10-12 loopers per m2

 

Examine plants, old litter and soil surface in 0.5m  of row. Repeat at 5-10 sites Larvae may migrate into crop edges from nearby capeweed
Caterpillars: cutworms 2-3 cutworm per m2 Examine plants, old litter and soil surface in 0.5m  of row. Repeat at 5-10 sites Apply as soon as pest is noticed at threshold levels
Lucerne flea Consider control measures if holes are increasingly being found on leaves Inspect 0.5m of crop row. Look for characteristic holes in leaves. Repeat at 5-10 sites Commonly found on soils with loam or clay texture
Mites: Balaustium mites Look for silvering on extensive areas of cotyledons and leaves and stress caused to plants Cotyledons and first true leaves appear silvered and leathery, sometimes may shrivel and seedling may die. Damage occurs post emergence Found on weeds, soil and seedlings
Mites: clover mite Look for silvering on extensive areas of cotyledons and leaves and stress caused to plants Same damage as redlegged earth mite. White lines often seen on top of cotyledons. Seedling may shrival and die Found on weeds, soil and seedlings
Mites: redlegged earth mite Look for silvering on extensive areas of cotyledons and leaves and stress caused to plants Cotyledons appear 'leathery', silver, twisted shrivelled and seedlings may die. Damage may occur before seedling emergence Found on weeds, soil and seedlings
Slugs: black keeled slug, reticulated slug 10 or more slugs per m2 They are found on plants at night or hidden under clods, trash or other objects during the day Chewed leaves or whole plants. They sometimes feed on lupin seeds at seeding.slime trails may sometime be seen

Snails: white italian snails, vineyard snail,

small pointed snail

5 or more snails per m2

 

3 or more snails per m2

Found on leaves, stems or other nearby objects Look for chewed leaves, slime trails may sometimes be seen

Where to go for expert help

Page last updated: Monday, 13 February 2017 - 11:35am