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1
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- Diane Alston, Department of Biology
- Utah State University
- Michael Reding, USDA-ARS
- Wooster, OH
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2
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- Primary insect pest of western cherry orchards
- Zero tolerance for larvae in fruit
- FQPA – loss of OPs
- Guthion – future uncertain
- Limited to 3 lb/acre (2 appls./ season
- 15 d REI / 15 d PHI
- Neonicotinoids and spinosad most promising alternatives
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3
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4
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5
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6
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7
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- Provado (14 d) performed better than Calypso (14 d)
- Spinosad (7 d) performed better than Spinosad (14 d)
- Provado (14 d) & Spinosad (7 d) were comparable to Guthion (14 d)
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8
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9
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10
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11
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12
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- Neonicotinoids: poor to moderate adulticide activity with high WCFF
populations
- Ovicidal and/or larvicidal activity, and/or inhibition of oviposition
must be more important than adulticidal activity
- Spinosad (GF-120 NF Bait): good adulticide (only 1 year data)
- GF-120 NF Bait & Guthion suppressed adult populations for up to 1
month post-harvest (only 1 year data)
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13
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14
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15
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16
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- Multiple applications (2-3) of neonicotinoids (Provado & Calypso)
can stimulate phytophagous mite reproduction
- Not caused by toxicity to predaceous mites
- Hormoligosis
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Notes
