Citrus Mechanical Harvesting

Information on past and current developments in Citrus Mechanical Harvesting area can be accessed below. You can also access the publications relevant to the Citrus Mechanical studies.

Citrus Mechanical Harvesting in Action
 IFAS Citrus Mechanical Harvesting Website

The IFAS Citrus Mechanical Harvesting website provides all available information on citrus mechanical harvesting-- a place where growers, harvesting contractors, processors, and other industry clientele can access the latest research material, acquire basic information on the existing harvesting systems, and provide a forum to ask questions regarding mechanical harvesting.

How to Effectively Search the Citrus Mechanical Harvesting Website [pdf]


Abscission White Paper

The Abscission White Paper was compiled in 2009 as a part of the registration process of the abscission agent CMNP with the U.S. Environmental Protection Agency.

Download: Abscission White Paper [pdf]

Reconciling Grower and Processor Objectives When Deciding to Harvest Juice Oranges

This paper discusses the grower’s optimal harvest window, the processor’s optimal production window, and the implications of maximizing the combined returns of both growers and processors. Jacob Searcy presented this paper at the 2007 FSHS annual meeting. (Jacob Searcy, Fritz Roka, and Thomas Spreen)

Download: Reconciling Grower and Processor Objectives When Deciding Harvest Juice Oranges [pdf]

Cost/Benefit Analysis of Abscission Registration for Citrus Mechanical Harvesting

An abscission agent application with citrus mechanical harvesting should allow the equipment to operate through the entire late season harvest. This paper, presented at the 2009 SAEA meetings, describes a cost/benefit analysis of using abscission. (German Blanco and Fritz Roka)

Download: Cost/Benefit Analysis of Abscission Registration Citrus Mechanical Harvesting [pdf]

Citrus Harvesting Tool

The Decision Tool was designed to help a grower decide the most profitable method of harvesting. As mechanical harvesting systems become available, a grower must determine whether or not a mechanical system is economically viable in his or her grove. Further, if more than one mechanical system is available, the Decision Tool will help them determine which system harvests at the lowest cost.


Studies in Progress
 Debris Cost Study

There have been some concerns by the citrus processors that the mechanical harvesters increase the amount of organic debris in the fruit trailers and it is causing them more breakdowns. To get an idea of what the costs are to the processors, a survey was conducted in 2009 with 9 processing plants participating.

Mechanical Harvesting System and CMNP Effects on Debris Accumulation in Loads of Citrus Fruit - Timothy M. Spann, CREC

This report was based on research done by Tim Spann, CREC, to determine the effects of mechanical harvesting systems on the amount of debris accumulated in a harvested load of fruit compared to hand harvesting.

Gleaning StudyCitrus Mechanical Harvesting - Relationship Between Available Yield and Labor Productivity - Small Chart

In order to create a idea of what the relationship is between the number of boxes per hour a harvester picks in relations to what is available in an acre of orange trees, data was collected in the 2007-2008 citrus harvesting season from 4 different groves in southwest Florida. There were a total of 118 observations that culminated many days of harvesting early/mid and Valencia orange blocks. A graph below depicts the information collected and the relationship obtained.


Citrus Mechanical Harvesting

The IFAS Citrus Mechanical Harvesting website provides all available information on citrus mechanical harvesting.