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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

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citrus mechanical harvesting realizing the potential

Citrus Mechanical Harvesting -Realizing the Potential

Presentation to the FDOC Citrus Commissioners

Lakeland, FL

November 16, 2005

Fritz Roka

UF/IFAS - SWFREC

today
Today
  • 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 catch
Trunk-Shake & Catch
  • Shaker, receiver, goat
  • 3 people/set
  • 5-12 sec shake
  • 95% removal
  • Skirt & prune trees
continuous canopy shake catch
Continuous Canopy-Shake & Catch
  • 2 Shakers, 2-4 goats
  • 4-6 people/set
  • ½ - 1¼ mph
  • 95% removal
  • Skirt & prune trees
avg performance statistics
Avg. Performance Statistics

Statistics compiled from 1999 – 2004.

tractor drawn canopy shaker
Tractor-drawn Canopy-Shaker
  • 1 Shaker w/ Tractor
  • 15-30 hand crew
  • ½ - 1¼ mph
  • 95% removal
  • No need to skirt or prune trees

Pick-up machine under development

impediments to adoption
Impediments to Adoption
  • 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 capacity
Push machine capacity

BX/HR better groves

*HR/DAY more trailers

*DAY/YEAR abscission

= BOXES/YEAR

Multiplicative impacts

roadmap for mh
Roadmap for MH

Industry Commitment

75 5 years

75¢ - 5 years

Feasible with Commitment