Walnut Husk Fly Management-2012 Walnut Day

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Timing<br />

• Emerge as adults from June through<br />

September<br />

• Every orchard is different – get traps up<br />

early

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Trap Placement • Crucial when monitoring low population • Influences how well traps catch flies • Areas with previous damage “hot spots” • Upper 1/3 of canopy on north side • Cool, damp, shaded areas are preferred • Black walnut trees are a good location

Timing • Emerge as adults from June through September • Every orchard is different – get traps up early

Page 1 and 2: Walnut Husk Fly Management • Rich
Page 3: Number of flies 2011 Orchard #2 - 3
Page 7 and 8: Supercharger Attractant (ammonium c
Page 9 and 10: Orchard Location • Every orchard
Page 11 and 12: Number of flies Spray 8/9 Spray 8/2
Page 16: Walnut Husk Fly Spray Materials Rob

Walnut Husk Fly Management-2012 Walnut Day

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