areawide suppressionof the glassy-winged sharpshooter - beth stone smith pierce's disease...
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Areawide Suppression of the Glassy-winged SharpshooterTRANSCRIPT
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United States Department of AgricultureAnimal and Plant Health Inspection Service
Plant Protection and Quarantine
United States Department of AgricultureAnimal and Plant Health Inspection Service
Plant Protection and Quarantine
Beth Stone-SmithUSDA APHIS PPQ WR
GWSS Program DirectorBakersfield, CA
Areawide Suppressionof the Glassy-winged
Sharpshooter
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Areawide Suppression
• What?
• Why?
• Where?
• How?
• Results
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What?
• Applying pesticide treatments, across a large geographically defined area, in order to significantly reduce pest populations.
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Why?
• To reduce current GWSS population levels - reduce natural and artificial spread of GWSS, reduce incidence of PD
+ =
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Where?
• GWSS Infested areas of California where commercial citrus production interfaces with grapes
• Kern, Riverside, and Tulare Counties
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How?
• Treatments targeted in citrus
• Treat based on trap finds, plus treat adjacent citrus
• Coordinated and effective timing of treatments
• Fall foliar
• Spring imidacloprid
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• Sticky traps on ¼ mile grid
• Monitor GWSS populations throughout the year
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Challenges to the How?
• Diverse agricultural system
• Polyphagous insect pest
• Existing IPM strategies
• Organic treatments
• Urban interface
• Funding
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Tulare County
• 66,300 acres of grapes
• 118,000 acres of citrus, ½ of which considered infested
• 5,122 traps
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2004
Tulare County
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Tulare County
2005
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Tulare County
2008
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Tulare County GWSS
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Tulare CountyGWSS Trapping Summary
Year GWSS Total Count
2003 48,639
2004 9,721
2005 1,043
2006 2,974
2007 2,536
2008 1,327
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United States Department of AgricultureAnimal and Plant Health Inspection Service
Plant Protection and Quarantine
United States Department of AgricultureAnimal and Plant Health Inspection Service
Plant Protection and Quarantine
USDA APHISUSDA APHISCDFACDFA
Treatment Treatment CoordinatorsCoordinators
County Departments of County Departments of AgAg
Industry GroupsIndustry GroupsGrowersGrowers
USDA ARSUSDA ARSUCUC
The The TeamTeam