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Citrus Mechanical Harvesting -Realizing the Potential. Presentation to the FDOC Citrus Commissioners Lakeland, FL November 16, 2005 Fritz Roka UF/IFAS - SWFREC. Today. Hand harvest, pick & roadside $1.50 - $1.60 /bx Machine harvest, shake & catch - PowerPoint PPT Presentation
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Citrus Mechanical Citrus Mechanical Harvesting Harvesting
-Realizing the Potential-Realizing the Potential
Presentation to the FDOC Citrus Commissioners
Lakeland, FL
November 16, 2005
Fritz Roka
UF/IFAS - SWFREC
TodayToday
• Hand harvest, pick & roadside
•$1.50 - $1.60 /bx• Machine harvest, shake & catch
•$1.30 - $1.35, includes gleaning (98% in the trailer)
• $60 – 125 /ac savings
Trunk-Shake & CatchTrunk-Shake & Catch
• Shaker, receiver, goat
• 3 people/set• 5-12 sec shake• 95% removal• Skirt & prune trees
Continuous Canopy-Shake Continuous Canopy-Shake & Catch& Catch
• 2 Shakers, 2-4 goats
• 4-6 people/set• ½ - 1¼ mph• 95% removal• Skirt & prune trees
Avg. Performance Avg. Performance StatisticsStatistics
Early-Mid SeasonEarly-Mid Season
TSCTSCCoeCoe
CCSCCCSCOxboOxbo
RemovalRemoval % 9595 9595
RecoveryRecovery % 8787 9090
SpeedSpeed Tree/hr
200200 361361
ProductivityProductivity Bx/hr 9696 103103
Statistics compiled from 1999 – 2004.
Tractor-drawn Canopy-Tractor-drawn Canopy-ShakerShaker
• 1 Shaker w/ Tractor • 15-30 hand crew• ½ - 1¼ mph• 95% removal• No need to skirt or
prune trees
Pick-up machine under developmentPick-up machine under development
Impediments to Impediments to AdoptionAdoption
• Plentiful harvest labor (prior 2004-05)
• Cost of grove prep
• Concern for tree productivity/health
• Grower insistence for Gleaning
• The “Late Season” Problem
• Excess capacity of existing systems
• Savings not big enough yet
Push machine capacityPush machine capacity
BX/HRBX/HR better grovesbetter groves
** HR/DAYHR/DAY more trailersmore trailers
** DAY/YEARDAY/YEAR abscissionabscission
= BOXES/YEAR= BOXES/YEAR
Multiplicative Multiplicative impactsimpacts
Roadmap for MHRoadmap for MH
More - Better Acreage Growers
More - Better Equipment Manufacturers
Trailer Allocations Processors
Abscission Registration DOC
Abscission Mgmt Plan IFAS
Education IFAS
Industry CommitmentIndustry Commitment
7575¢ - 5 years¢ - 5 yearsFeasible with Commitment