Title: Citrus leaves
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Permanent Link: http://ufdc.ufl.edu/UF00087049/00003
 Material Information
Title: Citrus leaves
Series Title: Citrus leaves
Physical Description: Serial
Creator: Citrus Research and Education Center, Institute of Food and Agricultural Sciences
Publisher: Citrus Research and Education Center
Publication Date: March 1999
 Record Information
Bibliographic ID: UF00087049
Volume ID: VID00003
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.

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UNIVERSITY OF CITRUS

Fod and AricuaScienc
Imbtuteof Foodand AficulturI Sciences LEAVES


CITRUS RESEARCH AND EDUCATION CENTER LAKE ALFRED


Vol. 17, No. 3-March 1999


CREC TO HOST CITRUS ENGINEERING CONFERENCE IN MARCH
CREC is the site of the 45rh Annual Citrus Engineering Conference. March 18 1949, sponsored by the Florida Section of the
American Society of Mechanical Engineers The 1999 Program Chairperson is Mr. Bob ,\ hire. PE/VP Jones, Edmunds & Associates,
Inc., Gainesville, Florida.
A tl:.er with information on registration is posted on the Nc"\ s" hulletir board outside of the \lailroom


45th ANNUAL CITRUS ENGINEERING CONFERENCE
An All-Day Conference Dealing with Engineering Problems of the Citrus Industry
And How They Are Being Solved
March 18, 1999
Ben Hill Griffin, Jr. Citrus Hall
Registration 8:30 9:30 am

Program -
Enhanced Dryer Operation through New Burner Technologies Doug Fillmon, Industrial En;r- ee rirn
Level Measurement and Control for Tank Farms Doug Groh, Ohmarr Vega
Machine Vision Grading for Citrus Prnces.ing Tim Reardon, Key Technology, Inc.
Year 2000 Issues for Citrus Processing Charlie Browne, Business Information Solutions
HAACP for Citrus Processing Debbie Newslow, Debbie Newslow & Associates
Citrus Waste Water Technology. David Keough, Jones. Edmunds & Associates, Inc.


Dr. Renee Goodrich, above, is teaching a two-day citrus
processing course to employees of Cutrale Citrus Juices,
USA. The two-day course offers an overview into juice
processing, Another two-day course will be offered March
4-5, 1999.


I- _
Employees of Cutrale Citrus Juices, USA, above. Cutrale, a
subsidiary of Sucocitrico Cutrale. Ltda., Brazil. owns the former
Minute Maid processing plants in Auburndale and Leesburg.
Cutrale. one of the world's largest growers and processors of citrus
products, supplies orange juice for Coca-Cola's Minute Maid
products.


BHG Room Reservations
To use one of the Ben Hill Grilin, Jr. meeting rooms, including the conference room, please reserve the room with the Switchboard
beforehand. Even if the rooms are not occupied, they may be reserved by another group or for audiovisual and cu.rirail set-up for an
upcoming event. The meeting schedule is busier than ever, and conflicts arise daily! Thank you!


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Citrus Leaves


International Society of Citriculture




Membership Drive

The International Society ofCiar rL ulure iISSC was initiated
as a world-wide forum for exchange and discussion of
inmorrmanon about citrus research, production and utilization.
The 1SC sponsors an International Congress every four
years, distributes an annual newsletter and provides information
about citrus-related meetings and other topics through its web
page (htrp tangelo.lal ufl.edu. SCCitrus_homepage.htm). The
next ISC Congress is December 3-7, 2000 at Disne)w world's
Coronado Springs Resort.
Dr. Gene Albrigo, CREC, is the current ISC President. The
ISC Honorary President in Dr. Homer Chapman. Other officers
are Dr. Mohamed El-Otmani. Inst. Agron. Vet. Hassan II,
Morocco, President-Elect, and Dr. Charlie Coggins, University
of California. Riverside (TICR) Secretar% Treasurer. Dr. Carol
Lovatt, UCR. is the Newsletter Editor.
The ISC is currently recruiting new members. An:. person
interested in citrus research, teaching, production, processing,
marketing, or any other aspect of citrus is eligible for
membership. Membership dues are S20 for a four-year period
(1996-2000). If you are unsure of your dues payment status,
contact Dr. Charlie Coggins, Secretary/Treasurer. k900) 787-
4412; or E-mail, charles.coggins@ucr.edu.
Application forms can be found on the 1SC web page,
htp: tanelo tal.url edu/CONGRESS/members.htm. An
application form is also posted on the "NEWS" bulletin board
across from the Mailroom.


ISC Congress 2000
Brochures Now Available
- Brochures available at the Switchboard or from Monica
Lewandowski, Please distrrbuit to visitors, friends at
meetings, etc.
- The January 1999 1SC Newsletter is posted on the "NEWS"
bulletin board across from the Mailroom.


Indian River Citrus Seminar
March 3, 1999
Harbor Branch Oceanographic Institute
Ft. Pierce/Vero Beach, Florida
Brochure posted on "NEWS" bulletin board
outside the Mailroom


LIKE BRAND NEW Kevin Troelson. Automechanic in the
maintenance shop, in front of the center's newly restored tractor.
The restoration, which took Kevin three months to complete.
raised the value and extended the life expectancy of a much
needed piece of equipment. According to Ken Jacobson,
Coordinator of Facility Operations, plans are underway to
restore another tractor soon. He hopesthat 3-4 special project
like this could be done per year. Photo by Terri Zito.


WARNING:


Don't attempt to pick up a bat lying on the ground. Most bats on the ground are Rabid.
Rabid bats isolate themselves (sometimes seen hanging on screens).
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Cirrus Leaves


I CREC AUDIOVISUAL

There is a wide selection of audiovisual equipment available to CREC employees and to visiting speakers. If the equipment
is needed for one of the meeting rooms, please reserve the room first by calling :he Switchboard. Give Jamie Cnastain a call
and he will gladly assist you Aith your A/V needs!

Overhead projectors Flatbed scanner
Videocamera Video cassette recorders
Mobile computers with with video camera connections
Internet connections Videoconferencing unit
anywhere in BHG Poster plotter-printer
Digital cameras Slide scanner
Slide projectors Microphones and PA systems
Computer projectors project your slide presentation on-screen from a
computer file no need to make slides!
NEW! The C-it video camera make video clips (approx. 30 seconds) and insert them in
to your presentations or send them by e-mail to colleagues'




SVideocassette Library over 0.0 rapes available on loan:

* New! Mike Armstrong, C REC Coordinator of Computer Applications, has acquired a set of Computer-instruction videotapes
from UF in Gainesville: Internet Instruction and Computer Literacy series from beginnerto advanced) Programming instructionn
videotapes and more
Mechanical harvesting videos Machinery videos
SHorticulture videos The CREC video
Laboratory and chemical safety Educational videos
Pesticide safety Great Cooking Challenge
Gator Citrus Club CREC Tour on videotape 7 2 hrs very informative
(Filmed and donated by Zeynel Dalkilic


Meet Jamie Chastain CREC's AN Technician

As CREC's audiovisual technician, Jamie Chastain now
combines several aspects of his background into one job: citrus,
the audio ,sual world and the academic environment. His
experience in all ,ofthese areas makes you think that this job was
meant for him.
Jamie, who joined C REC in April of last year, has a BA
in mass communications and a Master's in Liberal Arts from the
University of South Florida (USF) in Tampa. A Gator fan, he
first attended the University of Florida in Gainesville for two
sears before moving to L'SF to learn filmmaking.
Jamie, whose father was a citrus chemist at Pasco, has
been around citrus all of his life. His resume includes working
at the Evans juice processing plant and Dundee Packinghouse.



(continued on next page; Jamie Chastain, surrounded by some of his audiovisual equipment.
Chastain's office is in the Library. Photo by Terri Zito.






Citrus Leaves


Chastanm continuedfrom p, 3

As a filmmaker, Jamie has assisted with a feature film and
two dozen documentaries. He was a film editor for Channel 8 in
Tampa for three years.
Jamie's responsibilities include audiovisual equipment for
CREC meetings, % ideoconferences, classes and other functions.
Nowadas, that involves slide shows, videotape, computer
presentations and more. CR EC can accommodate a wide variety
of audiovisual needs, with advance notice and planning,
according to Jamie. He's also interested in helping our staff
develop some citrus video projects. W ith our current computer
capabilities, there are new and easier options for incorporating
video into research presentations, noted Jamie.
Jamie, who has worked 'or several years in academic
environments, is particularly interested in the educational aspects
of his job at CREC. He taught humanities and speech at Pasco-
Hemando Community College in Brooksville, and spent seven
years at St. Leo College, where he worked in their admissions
police, the library and other offices.
For his master's degree thesis, Jamie learned about art and
printmaking and wrote. "The History of Graphicstudio."
Graphicstudio, which is affiliated with USF in Tampa, is a
printmaking and sculpture studio where some of America's
greatest pop artists make prints and posters and work on


projects. He worked with artists such as James Rosenquist, Roy
Lichtenstein and Robert Rauschenberg. His favorite artist?
"James Rosenquist." said Jamie. "He's a great guy, and he tells
the best stories." Rosenquist is noted for his larger-than-life size
artworks, including F- 11 ," an SO-foot long painting which was
shown at the Jewish Museum in New York and in several
European cities.
CREC's videotape library has been recently expanded to
include over 200 videotapes, which includes computer
instruction videos, safety videotapes, mechanical harvesting
videos and a lot more. "And we just got two new 'C-it'
videocameras," said Jamie. A C-it videocamera can record and
save approximately 30 seconds of video as a computer file. You
can send the file via Email to others, or incorporate them into a
computer presentation, he explained.
For help with audiovisual needs, please give Jamie a :all



J AMIE CHASTAIN

EXTENSION 329

chastain la.ufl.edu


THE MEDITERRANEAN FRUIT FLY

IN FLORIDA'S NEWS


Medflies February 7. Nigg. Dr. Rick Ramos and Nadine Cuvler were a
The Mediterranean fruit fly :\ledtil: attacks over 250 part of newscasts b'. Fox News 13 and Ba. News 9. Nigg.
species of fruits and vegetables including citrus, tomato. Simpson and their team are testing borax as 'ell as several other
strawberry, mango, plum and pear. Females puncture the host compounds as e---;. in. suppressants fir Medflies and other
fruits and vegetables and lay eggs. Maggots hatch from the eggs insect pests.
in as little as 3 days, feed and grow in the host. E eentuallv,. the
fruit will drop to the ground. Current Situation
In 1998 Florida faced four incidences of Medtl) outbreaks: Currentl], there are no known Nledfil intestaions in
Miami Springs (Dade County). Umatilla (Lake and SE Marion Florida. According to the Florida Department of Agriculture &
County), Bradenton and Palmeno (Manatee Coun.) and Sebring Consumer Services (FDACS). sterile flies will be released
(Highlands County). In parts of Florida. aerial spraying of the throughh June 1999 in Hillsborough. Manatee and Sarasota
pesticide malathion and or release of sterile male flies were counties as part of their Preventative Sterile Fly Release
necessary for eradication. Last October, the Florida Medfly Program Sterile flies were also released in Sebring over the
infestation was declared eradicated. winter, and Miami -.,ill be targeted in the spring.

Alternatives to Malathion? For More Information
You may have noticed that Dr. Herb Nigg has been For more information on the Medfli, check the UF Pest
receiving some media attention lately. A Tampa Tribune writer Alert web page. It also has links to other useful sites, including
wrote a story on the use of borax to suppress Medrly egg-laying, the Florida Department of Health's (FDH) site with
a project of Nigg and Dr. Sam Simpson, Florida Department of comprehensive answers to the most frequently asked questions
Agriculture and Consumer Services (FDACS), Division of Plant about malathion and Medly eradication. The FDH site addresses
Industry. The story made the front page of the Tampa Tribune many health and environmental questions regarding malathion.
on Saturday, February 6. 1999. The Associated Press then
picked up the story and it took off from there newspapers http://extlabl.entnem.un.edu/PestAlert NMed fln
around Florida and the country carried the story on Sunday, medfly.htm,

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Citrus Leaves


CITRUS CANKER IN FLORIDA NEW CONCERNS


What is Citrus Canker?
Asiatic citrus canker, or simply citrus canker, is a bacterial
disease that affects most commercial citrus varieties. The
bacterial pathogen causes lesions on leaves, stems and fruit.
Severe infections can cause defoliation, badly blemished fruit,
premature fruit drop, twig dieback and general tree decline. It
is not harmful to humans or animals. The only known way of
eradicating the disease is destruction of infected trees.

Found near the Miami International Airport
From 1986-1992, 12 outbreaks of citrus canker were
eradicated in the Tampa Ba% area. In September 1l95. a new
outbreak was discovered in a residential area within a mile of the















Disensed trees are removed from a residential landscape. The removal
of dooryard trees in South FltrJt.j has elicited prnriet,~ from some
residents. Nearly 100.000 trees in Dade and Broward Counties have
been removed. There is an estimated two million doorsard trees in
Dade County alone. Photo from the:- 'r'.Ja Departmentof agriculturee
and Consumer Services.

Miami International Airport. This outbreak has spread
-iroiuihour much ofDade County. A:riculrure o-'flicial ha' e cut
nearly' 100,000 trees in Dade and neighboring Broward counties
in an ongoing eradication program. Affected residents are
compensated with vouchers to obtain replacement landscape
plants 'excluding citrus).

Canker Continues to Spread
On February 319oO, the Florida DeparTmeni or'Agriculture
and Consumer Services issued a news release announcing the
possible presence of citrus canker in a Hendry County citrus
grove and a residential area of Broward County.
In Hendry County, initial surveys show approximately 200
trees believed positive in a 300-acre grove ofgrapefruit located
roughly 30 miles east of Immokalee. The finding of citrus
canker in a commercial grove warrants even greater concern for
the industry .

How is Canker Spread?
Citrus canker is spread by human transport and by
meteorological events, such as thunderstorms. tornados, tropical
storms and hurricanes. Human transport, which includes
movement of infected material, trees, fruit or even lawn


maintenance equipment, is the primary means for introduction
into new areas.
According to a recent paper by Drs. Tim Gottwald (USDA-
ARS. Orlando). Jim Graham (CREC) and Tim Shuber
(FDACS). information on the occurrence and pattern of major
weather events can be used to help estimate the approximate
time and direction of bacterial spread. For example. in 1995,
Tropical Storm Jerry passed north ot the canker-infected area in
Miami. The counter-clockwise rotation of the storm's winds
could account for the occurrence and spread of canker in the
-urrounding area in late 1995.

Canker Research at CREC
Graham, Gottwald and others are working with the
riaie federal Citrus Canker Eradication Program (CCEP) to
provide research and Extension aimed at eradication of this
disease. They are examining the effects of weather patterns on
disease spread to predict future spread, analyzing the survival of
bacteria on plants and equipment to assess the possibility of
future outbreaks. and developing early detection methods.
Collaborative research efforts in Brazil are underway to evaluate
control measures should citrus canker become established in
Florida,

Canker Web Page
For more in format ion, check out the Bacterial Citrus Canker
web site by T.S. Shubert and J.W. Miller. Florida Dept. of
agriculturee and Consumer Services. The site contains
information, history, photographs and links to more canker web
sites. lr it '.. I I ,: edu l -enr.-r G i K'..": rri:l


March 6-7, 1999

Heritage Days Downtown Haines City


From the Business Office
P-Card Information
Announcements and information regarding the Purchasing
Card (P-Card i is posted on the bulletin board outside the
Business Office. Consult this board for a list of future P-Card
training classes, the web site address for State Contracts, and
other pertinent information. Remember, to obtain a P-card, you
must attend a P-card training session, then fill out and submit an
application to the Center Director's Office, in care of Shelby
Graham.

Fisher Scientific Accepting the P-Card
Effective February 24, 1999, Fisher Scientific will now
accept the UF P-Card, The P-Card may be used to purchase
items from their web site, www.fishersci.com.


..................


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Citrus Leaves


P-Card Classes
Below is a listing ofuptoniin. purchasing card classes. If
additional people in your area need training to become
cardholders, reconcilers and or approvers, please nont\ them of
these classes. To sign up. zall Linda at 352-392-1331 x-320
(e-mail: LiUtley@nervm nerdc uti.edui or Mercedes at
352-392-1331 x-305 (e-mail: lbonio.-ni nermn nerd utl edu i


Mar. 2
Mar. 23
Apr. 7
Apr. 22
May 5
May 6


Health Center. Rm #C 1-17
Reitz Union. Rm 282
Reitz Union. Rm S28'
Health Center. Rm C 1-17
Reitz Union. Rm #282
Health Center. Rm #C 1-17


9:30 12 Noon
9:30 12 Noon
130 4:00 pm
1:30 4:00 pm
2:00 4:30 pm
9:30 Noon


From Personnel
Time Cards Due: March 1, March 15, and March 29
We have recently received copies of the new "Humana
Workers Compensation Employee Handbooks" and "Humana
Provider Handbooks." Ana CREC employee wishing to receive
a copy of the "Workers' Compensation Handbook" should come
by the personnel office and pick one up. Unfortunately, we did
not receive sufficient quantities of the "Humana Provider
Handbooks" to provide one for each employee: however, we do
have several copies in the personnel office for any employee to
review if they will come by the personnel office. All injured
employees and volunteers should continue to contact the CREC
Personnel Office immediately when injured on the job to ensure
that the necessary paperwork to comply with state law and
Humana procedures is completed accurately and timely. Any
questions regarding this or any other matter regarding workers'
compensation should be _ireLced to the personnel office at
extension 210 or 322.



Na ,, Our deepest sympathy is
P O V extended to:

Nancy Burke for the loss of her sister.
Glenn Craddock for the loss of his mother and aunt.
Harry Ford for the loss of his wife Peg.
Rudene Scott for the loss of her brother.
Ben Velasquez (Security Guard) for the loss of his
mother.




Congratulations to Karen and Dru Colston on the
cirth of their child. Details next month


If you lost a beeper, you can claim
it from Nancy at the Switchboard.


CREC Web Page
tangelo.lal.ufl.edu

Tour CREC's Pilot Plants
on the CREC Web Page -
CREC's facilities include ajuice processing pilot plant, the
FMC Research and Teaching Laboratory. and a fresh fruit
packinghouse. For a glimpse of these facilities photos of
various equipment are posted on the web page-

tangelo.lal.ufl.edu.Pilot plantlindex.html


Word Processing &
Extension Support Page

tangelo lal ul edu CRECHOME/wpdept.htm

This page contains ....
- Photos of the Word Processine & Extension Support
Personnel
- Links to on-line journals and author instructions
- List of extension publications available at CREC
- Instructions for CREC personnel submitting papers for
publication
- A link to a site with citation styles for electronic citations, web
sites, telnet sites, etc.




NEWS AROUND CREC

Denise Dunn. Senior BiH1t-ical Scientist with Dr. Larrm
Duncan. was awarded her Masters of Science in Biology. with
a major in Botany. fr.im the University of South Florida in
Tampa in December lt q,
Dunn's thesis was entitled, 'Stres,-Predisposed Citrus and
Nematode Disease: The roles of PAL and Arginine." Her
research was conducted in Dr. Duncan's laboratory at CREC.
Her major professor was Dr. John Romeo (USF), with
Dr. Duncan and Dr. Diane Testrake (USF) as thesis committee
members.
Dunn explored why citrus trees are more susceptible to
citrus nematode (T Y', ., lilS sp.) infection under conditions of
environmental stress. She examined physiological changes in
citrus roots under high salt conditions, or salinity stress. She
bound that stress-induced changes in nitrogen metabolism and
phenylalanine ammonia lyase (PAL), a key enzyme in the
synthesis of phenolic defense compounds, were associated with
changes in the properties of root exudates. These physiological
chjanies may be involved in the enhanced attraction of
nematodes to citrus roots under salinity stress. Her -ndings will
be published in the journal, Phytochemistr.
Hearty congratulations to Denise on her accomplishment.
As many of you know, she completed her master's degree while
working at CREC and raising a family that includes her husband,
Gary, and four sons.


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