Wild oat infestation

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Wild oat infestation 7.12 hectares
Total field size 45.84 hectares
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Wild oat infestation
WHEAT YIELD
60-71 bu/acre
50-60 bu/acre
40-50 bu/acre
30-40 bu/acre
113 Acres
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Wild oat infestation
WHEAT YIELD
60-71 bu/acre
50-60 bu/acre
40-50 bu/acre
30-40 bu/acre
20-30 bu/acre
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Wild oat infestation
WHEAT YIELD
60-71 bu/acre
50-60 bu/acre
40-50 bu/acre
30-40 bu/acre
20-30 bu/acre
10-20 bu/acre
113 Acres
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Cephus cinctus Norton Hymenoptera Cephidae
PHOTO COURTESEY OF WENDELL MORRILL
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SAWFLY LARVA
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ESTIMATED ANNUAL LOSSES 25 MILLION
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Wild oat infestation
WHEAT YIELD
60-71 bu/acre
50-60 bu/acre
40-50 bu/acre
30-40 bu/acre
WHEAT STEM SAWFLY
40-60 infestation of the stems
20-30 infestation of the stems
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Wild oat infestation
WHEAT YIELD
60-71 bu/acre
50-60 bu/acre
40-50 bu/acre
30-40 bu/acre
WHEAT STEM SAWFLY
40-60 infestation of the stems
30-40 infestation of the stems
20-30 infestation of the stems