Group Title: Lake Alfred AREC Research report
Title: Packinghouse newsletter
Full Citation
Permanent Link:
 Material Information
Title: Packinghouse newsletter
Series Title: Lake Alfred AREC Research report
Alternate Title: Citrus packinghouse newsletters
Packing house newsletter
Physical Description: v. : ill. ; 28 cm.
Language: English
Creator: Citrus Experiment Station (Lake Alfred, Fla.)
Citrus Experiment Station (Lake Alfred, Fla.)
Agricultural Research and Education Center (Lake Alfred, Fla.)
Citrus Research and Education Center (Lake Alfred, Fla.)
Indian River Research Education Center
Publisher: Citrus Experiment Station
Place of Publication: Lake Alfred Fla
Lake Alfred Fla
Publication Date: February 1973
Copyright Date: 1965
Frequency: irregular
completely irregular
Subject: Citrus fruits -- Harvesting -- Periodicals -- Florida   ( lcsh )
Citrus fruits -- Packing -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
periodical   ( marcgt )
Additional Physical Form: Also issued on the World Wide Web.
Dates or Sequential Designation: No.1 (Sept. 1, 1965)-
Issuing Body: Issued by the Citrus Experiment Station (no. 1-38); Lake Alfred (Fla.) Agricultural Research and Education Center (no. 39-136); Lake Alfred (Fla.) Citrus Research and Education Center (no. 137-189); and the Ft. Pierce (Fla.) Indian River Research and Education Center (no. 190- ).
General Note: Title from caption.
General Note: Latest issue consulted: No. 202 (Aug. 1, 2005)
 Record Information
Bibliographic ID: UF00095555
Volume ID: VID00039
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 02430250
lccn - 2006229390

Full Text
.etter No. 51

Lake Alfred AREC Research Report-CS73-2
February 16, 1973-WFW-1000

Editor: W. F. Wardowski
Harvesting and Handling Section
University of Florida
Agricultural Research and Education Center
P. O. Box 1088
Lake Alfred, Florida 33850




tLFxoq F r: 1 0
*Anyone wishing to receive this newsletter car C
may send a dozen stamped, preaddressed 1
envelopes to the above address. c0r -'I

letter #51

Lake Alfred AREC Research Report-CS73-2
February 16, 1973

Harvesting and Handling Section




The simple act of changing the direction of citrus fruit 900 on a packing line is
one of the most common sources of injury in packinghouses. The illustrations below are
from the final chapter by Dr. W. Grierson of a textbook in preparation edited by Dr.
E. B. Pantastico on postharvest handling of tropical and subtropical fruits.

A) illustrates the principle that a shear should not exceed an angle of 300 to
oncoming fruit. Also inside corners should be cut parallel to the shear so that the
opening is never less than the width of the delivery belt. Inspection reveals than an
amazing number of shears, corners, etc. have sharp, rough edges from nonsmoothed welds.
Every packinghouse manager and his best mechanic would do well to personally inspect all
seams, shears, etc. for rough edges and eliminate any questionable points.

B) illustrates the use of rods to lead citrus fruit from a belt to a wider conveyor.
Rod diameters are selected to move some fruit toward the conveyor and allow some to ride
over. This arrangement leads the fruit in the desired direction and prevents a build-up
against the shear. Another approach is to slope the delivery belt at the end to lead
the fruit in the direction of the conveyor.
W. Wardowski W. Grierson
Extension Service University of Florida, AREC

Designing corners to minimize fruit damage. A) Transfer from one belt to another of the same or
lesser width. Gate-type shear should not exceed an angle of 30* to oncoming fruit. Inner corner is cut back
parallel to shear so that distance "X" is at least as wide as distance "Y". B) Transfer from a belt to a much
wider conveyor. The turn is eased by slender (ca. 5 mm) rods that ride on the belt. Inner corner is'again
cut back.

February 16, 1973


The above is the theme for Florida Southern College Citrus Symposium.


Wednesday, February 21, 1973
10 AM 12 Noon
Hollis Room of the Buckner Building
Florida Southern College
Lakeland, Florida

Moderator: Mr. H. J. (Spike) Connolly
Export Coordinator
Florida Department of Citrus
Florida Citrus Commission
Lakeland, Florida

Keynote Speakers: Sadayuki Hayashi, First Secretary, Economic Section
Japanese Embassy
Washington, D. C.

Otto Bammel
The German Agricultural Attache
West Germany Embassy
Washington, D. C.

Dr. H. J. Barnum, Ex. Vice-President
J. Walter Thompson Advertising Agency
New York, N.Y.

Panel Members:

Mr. Bill Varnell .
Mr. David Albertson.
Mr. Walter Loesche
Mr. Bob Saltzstein

. . Pasco Packing
. . .. Southern Gold
. . .. Tropicana
. . Winter Garden Citrus Products

After keynote talks the panel will assemble to answer questions from the audience
and comment concerning the citrus export picture. The program is a part of the over-
all "Founder's Week" program of Florida Southern College.

Thomas B. Mack, Director
The Citrus Institute
Florida Southern College
Lakeland, Florida

The Florida Fresh Citrus Shippers Association has endorsed a group health plan
for employees of the Association's member organizations, and many of the members are
participating. The plan from Blue Cross & Blue Shield and a participating life
insurance company is especially written for the Association. It is designed for all
employees including harvesting crews in the hopes that it will encourage pickers to
remain with a citrus organization the required 30 days for coverage and thereafter to
continue as regular employees to retain their insurance coverage. This fringe benefit
is an important step by FFCSA members in recognizing the importance of loyal employees
and continuing programs of good employee relations.
W. Wardowski
Extension Service

Newsletter #51

February 16, 1973


The current anti-pesticide hysteria has resulted in our answering customer
complaints and inquiries to Florida packers concerning the use of pesticides and
"cosmetic" treatments' to citrus. Our offer to answer such letters still stands, and
the packer is provided with a copy of our reply. Among other things, we explain that
legal tolerances are set in parts per million (ppm); and that 1 ppm is equivalent to
the thickness of a postage stamp compared to the height of the Washington Monument,
or one penny in $10,000.

The most commonly used fungicide, thiabendazole (TBZ), also happens to be a
human medicine; for which purpose the dose is related to body weight. Medium-sized
oranges with a typical TBZ residue were used to calculate the two-day medicinal
dosage of TBZ normally given to a 50 lb. child. A 50 lb. child would have to eat
over 881,000 Ibs. or 19,579 cartons or about 19.6 semi-truck loads of TBZ-treated
oranges in order to get the equivalent of a medicinal dose. Oh yes, the oranges
would have to be eaten in two days peel and all!

W. Wardowski
Extension Service


Available from Dr. W. Wardowski. Harvesting & Handling Sect-inn Agricultiiral Resperch
and Education Center, P. 0. Box 1088, Lake Alfred, Florida 33850.

"Shipping Quality of Citrus Fruits", by G. Eldon Brown and A. A. McCornack.
The Citrus Industry 53(1): 4-5, 16. January 1973.

"Chemicals in Agriculture", by W. Grierson. The Citrus Industry 53(2):
9-11, 13-15. February 1973.

Available from MQRD/ARS/USDA, 2120 Camden Road, Orlando, Florida 32803.

"Controlled Atmosphere Storage of Papayas (1968)", by T. T. Hatton and
F. W. Reeder. Tropical Region ASHS 13: 251-256. 1969.

"Photoelectric Color Sorting of Citrus Fruits", by 0. L. Jahn and
J. J. Gaffney. USDA Tech. Bull. 1448.

This public document was promulgated at an annual cost
of $201.60, or two and one-half cents per copy to inform
county agricultural directors, ranchers, and growers of
research results in harvesting and fresh fruit handling
and marketing.

Newsletter #51

University of Florida Home Page
© 2004 - 2010 University of Florida George A. Smathers Libraries.
All rights reserved.

Acceptable Use, Copyright, and Disclaimer Statement
Last updated October 10, 2010 - - mvs