Wild Oat

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Wheat Stem Sawfly Population
Spring Wheat Population
Wild Oat Population
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SAWFLY LARVA
ESTIMATED YIELD LOSS PER INFESTED STEM 10
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ESTIMATED YIELD LOSS OF LODGED STEMS 15
ESTIMATED ANNUAL LOSSES 25 MILLION
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WILD OAT
WHEAT
ESTIMATED ANNUAL LOSSES 20 MILLION
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SPATIAL DISTRIBUTION OF ADULT SAWFLIES (ADULTS
PER 5 SWEEPS)
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Sawfly larvae infestation in all stems
Sawfly larvae infestation in wheat stems
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WSSF Infested
Fallow Edge
Fallow Edge
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Sun River, 1999
WSSF Infested SW
Wild Oat Density
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Wheat Stem Sawfly Population
Parasitoid
Spring Wheat Population
Wild Oat Population