Title: Citrus leaves
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Permanent Link: http://ufdc.ufl.edu/UF00087049/00057
 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: September 2005
 Record Information
Bibliographic ID: UF00087049
Volume ID: VID00057
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.

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www.crec.ifas.ufl.edu

Citrus Leaves


I I


In This Issue
Citrus Canker Training.................1
Citrus Greening..........................
Friday, Sept 16: Meet CREC's
Postdocs, Visiting and Ph.D
Scientists "Posters and Pastries" 1
Citrus Canker Resources .............2
Decontamination Training ...........2
Food Tanker Workshop ..............2
Packinghouse Day....................3.
Paul Weikel, Webmaster............4.
From the Library by M. Alden......4
Plants and People in Space?.........5
Citrus Heritage in Bartow ............5
Setting up Citrus in Balm.............6
Dr. Stuart in the Amazon............6.
News Around CREC:
Good Deeds, Family News,
Welcome and Farewell
Manuscripts Submitted to the
Publications Committee ...............7
Calendar ...................................8.
Everyone: provide your supervisor
or Word Processing with current
emergency contact information in
case of a hurricane or other disaster.
State vehicle drivers: submit
new driver's authorization forms
(available in the Mailroom) to Perry
Love in Shipping/Receiving.

Citrus Leaves
is the monthly newsletter for
employees and friends of CREC.
Citrus Leaves welcomes your
contributions, suggestions and
corrections. Editor, Monica
Lewandowski; E-mail mmlew@
crec.ifas.ufl.edu; Ext. 1233.
Writer, Meredith Jean Morton.
Photography/graphics, Gretchen
Baut; Production/Distribution:
Word Processing, Barbara
Thompson, Supervisor; Kathy
Snyder, Karla Flynn and Linda
Murphy; Customer Service, Kathy
Witherington and Nancy Burke.


-1


- II DIVERSITY OF
I FLORIDA
IFAS


www. crec. if as. ufl. ed6


Dr. Harold W. Browning, Center Director
UF/IFAS Citrus Research & Education Center
700 Experiment Station Road
Lake Alfred, FL 33850-2299
Tel. (863) 956-1151
Fax (863) 956-4631


September 2005


Devastating Citrus
Greening Disease in
South Florida


LI


Citrus Canker Very Close


SUMMARY

13011ce Sale W11P


Dr. Pete Timmer (above) presented a training
on how to survey for and identify citrus
canker symptoms. If you missed it, the
training is also available on DVD (see Dr.
Timmer). Color pdf files of citrus canker
symptoms (as well as diseases with similar
symptoms), and a key to assist in identifying
symptoms can be printed from the "Citrus
Canker Resources" link on the CREC website.

With two citrus canker finds within 10
miles from CREC, Center Director Dr.
Harold Browning reminded employees what
is at stake should citrus canker be found at
CREC and all our citrus destroyed. "We could
stand to lose everything decades of research,
unique and irreplaceable material, and the
ability to conduct research and education on
citrus," Dr. Browning told the CREC audience
at a citrus canker training session on Aug. 30.
"If you're not personally decontaminating,
you are breaking the law," he added, referring
to the state's mandatory decontamination
of personnel, vehicles and equipment upon
entering and leaving a citrus greenhouse
or grove. Dr. Browning also said that
see Citrus Canker Very Close, p. 2

If you suspect citrus canker ...
Tag the tree or location.
DO NOT COLLECT A SAMPLE.
DO NOT TRANSPORT A
SUSPECT SAMPLE.
Notify your supervisor or Dr.
Timmer to arrange an inspection.


-~~~~-~-~~~~-~~~~-~-~~~~-~~~~-~-~~~~-~~~


itrus greening, a devastating bacterical
disease that many consider the worst
disease of citrus, was confirmed in early
September in South Florida by the USDA
and the Florida Dept. of Agriculture.
Diseased trees decline rapidly, become
unproductive and die in as little as a few years.
According to a Florida Dept. of
Agriculture press release, this is the first
detection of citrus greening in the U.S.
The disease is caused by bacteria in the
see Citrus Gi.. ,;,i -. p. 4

All are invited -

Friday, Sept. 16, 2005
Ben Hill Griffin Jr. Citrus Hall
10 am 12 noon


Meet CREC's
Postdocs, Visiting Scientists
and Ph.D. Scientists!

"Posters and Pastries"
A Research Symposium -

Thirty of CREC's postdocs, visiting and
other Ph.D. scientists will be on hand
with scientific posters and available
to answer questions. This is a great
opportunity to interact with others
and learn about current projects in an
informal setting.
Come on over and meet our scientists!

All personnel are encouraged to attend;
the event is also open to the public.

Coffee, orange juice, donuts, muffins and
other goodies will be served.


171r~r







Center Director Dr. Harold Browning
addressed the CREC community at
a citrus canker training session on
Aug. 30, stressing the importance
of citrus decontamination. When
citrus canker is found in Florida, all
citrus within 1900 ft. is destroyed,
and the area placed under a
minimum two-year quarantine. This
would be devastating to CREC.

Citrus Canker Very Close...from p. 1
Florida Dept. of Agriculture inspectors are routinely monitor
compliance, watching workers through binoculars and citing
those not following proper decontamination procedures.
Last month, citrus canker was found in groves at the UF/
IFAS Indian River Research and Education Center in Fort Pierce,
requiring the destruction of all their citrus. "One hundred
acres all of IRREC's [citrus] research, is gone," Dr Browning
Citrus canker is a bacterial disease that causes lesions on the fruit,
leaves and stems, fruit and leaf drop, and a general decline in tree
health. The state of Florida has a mandatory eradication program
Currently, over 54,000 acres of citrus in Florida have been destroyed.
a bacterial disease that infects citrus, causing fruit and leaf drop.
CREC, USDA and other scientists are conducting research on
treatments and management strategies, as well as the development of
resistant varieties. However, a safe, effective treatment is not in the
near future. Currently, ilii ai.ile i Florida is to eradicate the disease.
Employees are reminded that cil'hlii.. skin, hats as well as
equipment, tools and vehicles must be decontaminated before


CITRUS CANKER RESOURCES
Photos of citrus canker symptoms and similar
diseases, handouts, key to identifying citrus canker
www.crec.ifas.ufl.edu click on the Citrus Canker
Resources link on the right side
Citrus canker decontam/disinfection guidelines,
UF/IFAS Citrus Pest Management Guide:
edis.ifas.ufl.edu/CG040
FL Dept. of Agriculture & Consumer Services:
doacs.state.fl.us/canker
Florida Citrus Canker Eradication Program Helpline:
Miami-Dade / Broward / Palm Beach / Monroe counties:
Tel. (800) 850-3781
All other Florida counties: Tel. (800) 282-5153
UF/IFAS Citrus Canker Extension website:
canker.ifas.ufl.edu

Citrus Canker: The Pathogen and Its Impact
www.apsnet.org/online/feature/citruscanker/
Tim R. Gottwald, USDA-ARS Ft. Pierce; James H. Graham,
UF/IFAS CREC; and Tim S. Schubert, FDACS/DPI
Gainesville. 2002.
entering and leaving groves/greenhouses. Citrus canker
decontaminant for personnel and clothing is available near the
CREC switchboard. Questions can be directed to your supervisor
or Dr. Timmer. Online resources are listed in the box above.


S"W Decontamination
Nick Ergun (left) from the Florida Dept. of Agriculture
and Consumer Services Division of Plant Industry in
Fort Pierce conducted a citrus canker decontamination
workshop as part of the 44th Annual Citrus Packinghouse
Day on Sept. 1 at CREC.
Left: Ergun demonstrates decontamination of personnel.
Right: Sherrie Buchanon participates in a personnel
decontamination exercise. Photos by Gretchen Baut.
More Citrus P,, I ;in,-. '..i. Day photos on P, ,.-. 2.


Food Tanker Sanitation Workshop
Over 60 people attended
a food tanker sanitation
SI workshop at CREC on Au-
gust 24. The workshop
covered food microbiology,
sanitation of food tankers,
inspections, regulatory is-
sues and other topics re-
lated to tanker sanitation
for the transport of juices,
dairy products and bever-
ages. The afternoon ses-
sion included a panel discussion of instructors, inspectors and industry representa-
tives (above). Speakers included Dr. Renee Goodrich, workshop organizer (CREC),
Dr. Keith Schneider (UF/IFAS Food Science and Human Nutrition Gaines-
ville), Dr. Dan King (Florida Citrus Processors Assoc.), Paul Winniczuk (CREC),
and Dr. R. Schmidt (UF/IFAS Food Science and Human Nutrition Gainesville).


Over 60 citrus growers from Brazil visited
Florida to meet with CREC scientists on
Aug. 23. Above, Dr. Natalia Peres (UF/
IFAS Gulf Coast REC Balm) and Dr. Jim
Graham (CREC) answer questions from
the audience. The group also attended the
Citrus Expo in Fort Myers on Aug 24-25.


N ,







Scenes From The -
44th Annual Citrus 5I
Packinghouse Day ....... ........
Last year's Citrus Packinghouse- L .'''
Day was cancelled as Florida
prepared for the arrival of
Hurricane Frances. This year's
event, with seminars and exhibitors
for Florida' fresh citrus industry, proceeded on schedule. Above left: Richard Kinney of the Florida Citrus Packers Association,
presided over the event. Center: Dr. Bill Miller discussed advantages of color grading of fruit prior to degreening. Dr. Miller
also serves as the exhibits coordinator for Packinghouse Day. Dr. Renee Goodrich is the local arrangements coordinator, and
Dr. Mark Ritenour from the UF/IFAS Indian River Research & Education Ctr. in Fort Pierce is the program coordinator. Far
right: Juan Muniz from Primus Labs in Santa Maria, Calif., presented the keynote address, "How to Pass a Food Safety Audit."












Above left: Dr. Gene Albrigo answers questions after his presentation,
"Prospects for Good Fruit Quality This Year." Above right, Ledger
reporter Kevin Bouffard (left) speaks with Mark Estes from the Florida
Dept. of Agric. and Consumer Services, after his presentation on "Citrus
Canker Update on Eradication Progress and Regulatory Issues."
Estes reported that before last year's hurricanes, 15,000+ acres of commercial citrus had been eradicated; since August 2004,
there have been over 46,000 acres of citrus destroyed, attributed to the spread of the disease by the hurricanes. Far right, Dr. Tom
Burks, UF/IFAS Agricultural and Biological Engineering, discussed research progress on a mechanical harvesting system for fresh
citrus. He showed video of a robotic harvesting arm in action (above right). Photos by Gretchen Baut and Monica Lewandowski.
Near left photo, left
to right: Dr. Jan
Narcisco (USDA-ARS Cop.
Winter Haven), who

in Packinghouses" and eet I
a workshop; Chris
Ference (USDA-ARS)
works for Dr. Narcisco,
and Dr. Mark Ritenour.
Above, center photo:
UF/IFAS CREC Professors Emeritus Dr. Adair
Wheaton and Dr. Jodie Whitney catch up on
Packinghouse Day events.
Above right, David Hall (FreshMark Corp.) and Dr.
Mohamed Ismail, Courtesty Professor Emeritus
and retired FDOC researcher, take in the event's
activities. Lower left, Hall speaks with Dr. Eldon
Brown, retired FDOC postharvest plant pathologist.
Lower right, vendors for the fresh citrus industry;
set up exhibits in the Packinghouse. In his opening
remarks to the Packinghouse Day audience, Center
Director Dr. Harold Browning noted the absence of the Florida Department of Citrus in the area of fresh fruit and postharvest, which
had been a part of the Department's research program since the 1940s. Sadly, this is no longer a part of the FDOC's research today.









Paul Weikel
New CREC Webmaster


Paul Weikel can be found in the CREC
library. His e-mail address is weikelp@
crec.ifas.ufl.edu, and he welcomes
suggestions and website project ideas

Paul Weikel joined CREC as our
new website manager in August.
A native of Indiana, Paul worked
for University of Notre Dame's
Mendoza College of Business IT Group
in graphics artist/technical support.
He also worked at the Fitzpatrick
Multimedia lab as a film class consultant.
Prior to moving to Florida,
Paul lived in Wyoming's Big Horn
Mountains and the Chihuahua
Desert near Carlsbad, New Mexico.
"This wanderlust for longitudes
was imparted onto me after high school
graduation," Paul writes. "After years of
saving, I 'skipped'mygraduationceremony
and flew to Europe to backpack with two
friends across the continent." Paul isfrn
Paul has a B.S. in Compter has lived
Graphics Ti 'lNiilw from New Me
New Mex
went to Purdue University.
"During the time spent Europe.
at Purdue, I was a member in Compt
of the web development Technolo
team that created the
Purdue at South Bend's website and
was chief coder for a senior project
team that created an automated pool
chlorination and monitoring system as
a business proposal," Paul continues.
"This led to a real interest in HCI
(Human Computer Ilin I r.[.ill-i and I then
participated in many research programs
that analyzed basic human/computer
interaction theories. My senior research
project/paper at Purdue explored the
transformation of original 2D hand
drawn animation into a three dimensional
environment. The theory was that 3D
animation can accomplish said task 25


- I %. -


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in
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ite
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genus Candidatus Liberobacter. Early
symptoms are leaf yellowing, including
yellowing of leaves on a single shoot,
branch or section of the tree canopy.
The bacteria are transmitted primarily
by insect vectors (citrus psyllids). The Asian
citrus psyllid (Diaphorina citri Kuwayama)
was first detected in Florida in 1998.
At a briefing on citrus greening held
at CREC on Sept. 8, state entomologist
Susan Halbert said that citrus greening
was well established in southern Dade
County. Severe symptoms have been
found on pummelo and grapefruit,
although the disease has also been found
on limes, oranges, kumquats and possibly
other citrus varieties in South Florida.
Spread of citrus greening by the insect
vector is potentially much greater than
with citrus canker. Host plants for the
Asian citrus psyllid are primarily citrus
and other genera in the family Rutaceae,
including orange jasmine (Murraya
exotica) and and other species of Murraya.
The Florida Dept. of Agriculture
is establishing plans for eradication
of trees with citrus greening.

times more efficiently then what was
being done 25 years ago. A comparative
analysis and time/cost relationship was
established. My degree focused on new
media and spatial animation; animation
being a dedicated hobby of mine. I enjoy
creating 3-D illustrations and animations
in my spare time."
Indiana and "When I do disconnect
Wyoming and from the machine I like
Sand toured to spend time outdoors.
has a B.S. I enjoy day hiking and
r Graphics camping trips and getting
from Purdue. to the beach to explore
the rural countryside.
I enjoy atmospheric space music and if
you see my MP3 player, I'm probably
listening to anything from Norwegian folk
to Indonesian Gamelan."
"I'm really excited to be in Florida and
look forward to exploring the beaches and
coastal towns. I've finally worked that itch
to travel far and wide out of my system and
am happy and content here in Florida. I
plan to retire here. My family lives in South
Bend, Indiana and Long Island, New York."
Paul can usually be found at his
computer in the library; his telephone
extension is 1232. To contact Paul
by e-mail: weikelp@crec.ifas.ufl.edu.


A selection of Citrus Greening
Resources are on the CREC website
Other resources: FDACS/DPI Citrus
Greening Information
www.doacs.state.fl.us/pi/enpp/ento/
citrusgreening.html

UF/IFAS publications:
Citrus Diseases Exotic to Florida:
Huanglongbing (Citrus Greening)
K.-R. Chung and R.H. Brlansky
edis.ifas.ufl.edu/PP133
Asiatic Citrus Psyllid, Diaphorina
citri Kuwayama (Insecta: Homoptera:
Psyllidae) by F.W. Mead
edis.ifas.ufl.edu/IN160
2005 Florida Citrus Pest Management
Guide: Soft-Bodied Insects Attacking
Foliage and Fruit by H.W. Browning,
C.C. Childers, PA. Stansly, and J. Peia
edis.ifas.ufl.edu/CG004
At CREC, research on citrus greening is
conducted by Dr. Ron Brlansky, and the
Asian citrus psyllid by Dr. Carl Childers
and Dr. Michael Rogers.


From The
CREC Library
Access To
UF's Online
Library
Resources
by Marcia Alden
T he UF Librar-
ies make a number of resources avail-
able via the Internet, available at any UF
facility. Away from campus, not all of
sites are freely available and online ac-
cess is restricted to only UF students, fac-
ulty and staff. If you attempt to connect
to these resources, you may be prompted
for a username and password, or worse, a
preferred method of payment for purchas-
ing. The UF Libraries are able to provide
free access through a remote logon. Cur-
rently there are three choices for remote
logon: dial up to UF GatorLink; UF Li-
braries' Proxy; and, UF VPN. You will
need a library-activated number (the 14-
digit number under the bar code on your
Gatorl card) or a GatorLink account. By
using these methods, you are virtually
able to become part of the UF community
and have access to all of the resources
See CRECLibrarv. ... 5


Citrus Greening ... from page 1







People and Plants in Space?
Drs. Bill Miller, Reza Ehsani, Masound Salyani, Jos6 Reyes, Sherrie Buchanon and
Monica Lewandowski visited Kennedy Space Center on Aug. 15 to tour the Space Life
Science Lab facilities and give presentations about CREC engineering projects for citrus
production and processing. Last month, Dr. John Sager (NASA Biological Sciences) and
a group of agricultural engineers from Kennedy Space Center, including visiting faculty
from other universities, toured CREC facilities to learn more about engineering projects in
citrus. Dr. Monica Lewandowski also provided an overview of CREC programs to the
groups. The SLS Lab, a 100,000 square foot facility dedicated in 2004, houses support of
International Space Station payloads and life sciences research for future space exploration.
NASA, NASA contractors, the University of Florida and other institutions use the facility.
Left: Dr. John Sager describes work in the
Flight Experiment Support and Hardware
Development lab, which can support
biological experiments for the space shuttle
and the International Space Station. Dr. Bill
e Miller (center) and Dr. Jos6 Reyes look on.
Dr. Jay Garland with
Dynamac Corp. also gave tours of
research labs for the recovery and
recycling of waste products and water for space exploration.
NeilYorio and Dr. Gary Stutte provided tours of the plant growth chambers for cultivation
of crops in space, including evaluation of light emitting diodes for plant lighting (lower left,
NASA photo), analysis of ethylene and other compounds in enclosed growth chambers and
effects on plant growth, and systems for supplying water and nutrients in low or microgravity.
Far right: Dr.
Miller peers into a
chamber in which
aspects of the
environment can
becontrolled, such
as atmospheric
pressure, to
investigate
effects on
instrumentation
and plant growth.


ASHS Fruit Publication
Award to Graham Barry,
Bill Castle and Fred Davies

Dr. Graham Barry, Dr. Bill Castle
(CREC) and Dr. Fred Davies (UF
Horticultural Sciences Gainesville)
received the American Society for
Horticultural Science Fruit Publication
Award at the ASHS Annual Meeting,
July 18-21, in Las Vegas. The award
recognizes the authors) of the outstanding
paper in the designated area, published in
the previous year's issues of The Journal
of the American Society for Horticultural
Science, 11. i '.- .. ., orHortTechnology.
Dr. Barry, who earned his Ph.D.
from the University of Florida, studied
with Dr. Castle at CREC and is
currently on the faculty of the University
of Stellenbosch in South Africa.
The paper, which was part of Dr.
Barry's dissertation thesis, was titled
"Rootstocks and plant water relations
affect sugar accumulation of citrus fruit
via osmotic adjustment," by G.H. Barry,
W.S. Castle and FS. Davies, published in
The Journal of the American Society for
HorticulturalScience, 2004: 129:881-889.
Dr. Jude Grosser was also recognized
by the ASHS this year with the
Outstanding Researcher Award (see
July 2005 Citrus Leaves for article).
Congratulations to Dr. Barry, Dr.
Castle, Dr. Davies and Dr. Grosser
on their outstanding achievements.


Dr. Jim Syvertsen traveled "" .- .. l CREC Library ... from p. 4
to Australia in August, where p ML I you have access to here at the Center.
he toured the Riverland's citrus il When you are traveling, it's
Areas and gave W easy to logon to the library proxy
a seminar to because it is easily accessed via the
growers and Internet. From the UF Libraries
researchers home page (www.uflib.ufl.edu), click
in Merbein, the "Remote Logon" link in the upper
Victoria, right-hand corner, in the top blue bar.
entitled, A link to the library proxy server is
S a d i n i t y, also available from the CREC Library
Shade and Citrus Heritgeproxy server Web page. Enter your
Mechanical NMeredilh Miorlon .ihi Dn' 14-digit library card number or
harvesting Stress in Citrus. Steve Futch and Dr. Monica Lewandowski participated in a GatorLink account username &
Dr. Syvertsen also traveled citrus heritage event at the Polk Historical Museum in Bartow password. Be sure to follow the
to Salto, Uruguay on Sept. 3-11 on Aug. 20. The event was held in conjunction with a citrus navigation instructions for remaining
in conjunction with a UF/INIA crate label display that was on exhibit this summer. Dr. Futch connected to the proxy. Once you are
cooperative project to review was on hand for seminars and questions about growing citrus logged on to the proxy server, you have
their citrus research program. He for homeowners; Meredith and Monica set up children's citrus- access to all of the online resources.
also presented a seminar, "Shade themed crafts (above right) and activities. The Polk Historical For more information about
effects on citrus trees and fruit Museum, on Main Street in downtown Bartow, also has area off-site connection, please read:
quality." citrus history and information in their regular museum exhibits. www.uflib.ufl.edu/access.html.







CREp Citrus il .. h .- i
11, *:i?:.*L ~ _. r r ir ^:j; i


CREC's Plant Improvement Team and the Grove Crew planted over
4000 citrus trees this summer for rootstock and scion evaluation and
trials at the UF/IFAS Gulf Coast Research and Education Center's
new facility in Balm. Balm is in Hillsborough County, and houses
UF/IFAS programs previously located in Bradenton and Plant City.
Lower left photo: Dr. Gmitter and laboratory toiled in the summer sun
to establish citrus plantings for evaluation. Left to right: Dr. Young Choi,
Margie Wendell, Misty Holt, Dr. Gmitter, Dr. Chunxian Chen and Dr. Rao.
Lower center photo, the group in action. Photos submitted by I- 1 ,, ;. Wendell.


Dr. Stuart in the Amazon
Fascinating Flora and Fauna Highlight of Travels
by Meredith Jean
Morton

The a tAmazon
rainforest is a
scientist's paradise,
and it was no
exception for Dr.
Robin Stuart,
who traveled to
Brazil in May.
The trip was Dr.
\ill.irt's fifth journey to
i.i/il, but he speaks of the
.t.. with the excitement
-1I a first-time visitor.
-- "It's just such a great
I pl.ice to visit," says Dr.
NIIi.Irt, looking through
h phIlios from his trip.
Dr. Stuart visited
Illc Reserva Biologica
deCuieiras, a field station
in the terra fire lowland rainforest, about 60 kilometers northwest
of Manaus, Amazonas State. The field station is operated
by INPA as part of the Large-Scale Biosphere-Atmosphere
Experiment in Amazonia, a cooperative international project
to study biogeochemical processes in Amazonian ecosystems.
During his trip, Dr. Stuart stayed at the unique


Above, left to right: Jim Baldwin, Ryan Atwood,
Ajia Cunningham, Huang Shu, Dr. Madhugiri Rao,
Dr. Bill Castle, Dr. Fred Gmitter and Troy Gainey
take a work break to pose for a group picture.
Below: CREC's Plant Improvement Team (led
by Dr. Bill Castle, Dr. Fred Gmitter and Dr. Jude
Grosser), cleaned themselves up to celebrate their
planting milestone with a lunch at Southern Dunes.

11. I1Ft'~.l1


Ariau Towers Jungle Hotel, the only hotel complex
at tree top level in the Amazon Rainforest.
"The hotel was great," Stuart says. "It was in the
igapo [flooded] forest, with the buildings up on stilts and
connected by catwalks. It's really kind of neat, surrounded
by nature preserves a great place for ecotourism."
In addition to visiting the INPA field station with colleagues
Dr. Katia Rodrigues, (Mycology Department, FIOCRUZ,
Ministry of Health, Rio de Janeiro) and Carlos Alberto Cid
Ferreria, (Department of Botany, Instituto National de Pesquisas
da Amazonia (INPA), Manaus), Dr. Stuart participated in several
other exciting activities. He went piranha fishing, watched squirrel
monkeys and parrots at the hotel, and observed the local ant species.
"I saw the large stinging Ponerine ant," says Dr.
Stuart enthusiastically. "There were also leafcutter ants."
Dr. Stuart says one of the most interesting aspects of his
trip was the opportunity to hear ants stridulate (the term used to
describe the act of making sounds by rubbing body parts together).
"Ants are one of my areas of interest," says Dr. Stuart, who
studies ant predation on Diaprepes root weevils, a pest of citrus
and other crops. "But I've never gotten the chance to hear them.
This trip I was able to
observe ants large enough
to hear stridulate."
Dr. Stuart greatly.
enjoyed his latest trip to
the Brazilian Amazon, .' -
and is planning to return
for another visit in :'-
September and again in .
December of this year.
Photos from Dr Stuart.







S 7


Good Deeds, Good News
Thanks to Renato Reis, who found
and returned a ring that belonged to
Debbie Van Clief. The ring had great
sentimental value and its safe return was
greatly appreciated.
Also, thanks to Dr. Iqrar Khan, who
found and returned some money that was
reported lost by Rachel McCoy. These
good deeds mean a lot!


WELCOME
Fatima Jabalpurwaler student
(Gainesville, Dr. Rouseff)
Eduardo Jose Chica student (Dr.
Albrigo)
Betti Kelley Human Resources (D.
Price)
Jamuna Madjavaraj OPS (Dr. Grosser)
Edward Jurczak OPS (Dr. Salyani)
Christen Taylor OPS (Dr. Ehsani)


Shelley Jones (below left), her husband, FAREWELL
Dana, and Jim Baldwin and his wife, Lily Kender (Dr. Singh)
Linda (below center), were part of a Mary Brawley (Dr. Brlansky)
group from Beymer Memorial United
Methodist Church in Winter Haven that spent a week putting a roof on a house for a
Methodist Habitat project in Eleuthera, Bahamas, this summer. Dr. Jodie Whitney was
also part of the project's organization and fund-rasising. The team had a productive
and enriching trip, and also enjoyed the island's friendly people and natural beauty.


Jeff Timmer, son of Dr. Pete and
Nancy Timmer, married Marlha
Mancewicz (right) on Aug. v, Iii
Marina del Rey, Calif., with absh, i
80 guests in attendance. Jeff n v i ks
as a stress engineer for N, li iip-' .
Grummond on the James X\IhbbhEW
space telescope (the replacenllii_
for the Hubble). Martha works II ,i
the Rand Corp and has done I i -
of SAS programming. Martha is
originally from the Detroit area, but has
lived in California for some time. The
couple will live in Culver City and Dr.
Timmer says yes, she will change her name.


Brittney N. Pearn,
granddaughter of Janice
and Virgil Stewart and
daughter of Nicole Smith,
graduated from Lake Region
High School in May and is
currently studying liberal arts
at Polk Community College.
Brittney graduated
with High Honors and
was awarded a two-year
academic scholarship, a Bright Futures
scholarship (Gold medallion), and the
Walter Mae Williamson Scholarship.
During her high school career, Brittney


Dr. Iqrar Khan returned to the Sultan
Qaboos University, Oman
Monica Dickinson (Dr. Grosser)
Jessica Noling (Dr. Graham)
Jose Carlos Rodrigues (Dr. Childers)
Liza Zhang (Dr. Timmer)
Jennifer Vick (Dr. Syvertsen)
Naresh Pai (Dr. Salyani)
Meredith Morton (Dr. M. Lewandowski)
Yehong Xu (FDOC, Dr. Cancalon)
Did we miss you or someone in your
lab/department? Send names to mmlew@
crec.ifas.ufl.edu, or contact the CREC
Switchboard.
was on the Silver Streak Dance Team
and was a junior varsity and a varsity
cheerleader, serving as squad captain
in her senior year. She was also an
All-American cheerleading nominee.
She was in the Future Business Leader
of America club, Honor Society, Student
Council, was a Senior Class Senator and on
the yearbook staff. She also teaches Sunday
School at the Polk City Church of Christ.
Brittney was second runner
up for Homecoming Queen and
voted "Most Thunder Spirit."
She was named to the 2003-04 "Who's
Who Among American High School
Students," academic and sports editions,
and received a "Who's
Who: Academic Award
and Honor Society
Award (2004-05).
Nicole has worked at
McDonald'sfortwoyears
and is now a manager.
,7.o Grandparents
Janice and Virgil
Stewart both work at
CREC. Brittney's mother, Nicole Smith,
previously worked at CREC for Dr. Nigg.
After PCC, Brittney would
like to continue her education and
eventually pursue a master's degree.


Manuscripts Submitted to the Publications Committee in August
Q. U. Zaman, A. W. Schumann, and H. K. Hostler. Rapid Estimation of Citrus Tree Damage from Hurricanes in Florida Using an
Ultrasonic System. HortTechnology.
F. Alferez, L. Pozo, and J. K. Burns. Physiological Changes Associated with Senescence and Abscission in Mature Citrus Fruit
Induced by 5-Chloro-3-Methyl-4-Nitro-1H-Pyrazole and Ethephon Application. Pli\ *....-i, Plantarum.
C. C. Childers and M. E. Rogers. Evaluation of Chemical Control of the Asian Citrus Psyllid, Diaphorina citri, Kuwayama
(Homoptera: Psyllidae) and Management Approaches in Florida Citrus. P. ,... 1;, :. of the Florida State Horticultural Society.
C. C. Childers and P. A. Stansly. Thrips (Thysanoptera: Thripidae) Pests of Florida Grapefruit: Biologies, Seasonal, and Relative
Abundance, Fruit Damage and Monitoring. P, .. 1. :,.. of the Florida State Horticultural Society.
J. P. Agostini, N. A. Peres, S. J. Mackenzie, J. E. Adaskaveg, and L. W. Timmer. Effect of Fungicides and Storage Conditions on
Postharvest Development of Citrus Black Spot and Survival of GC,;i-..,,,11 ,, citricarpa in Fruit Tissues. Plant Disease.
C. C. Childers and S. Nakahara. Thysanoptera Within Citrus Orchards in Florida: Species Distribution, Relative and Seasonal
Abundance Within Trees, and Species on Vines and Ground Cover Plants. Florida Fit..,l. 1. -..






Sun Mon Tues Wed Thurs Fri Sat
calendar.ifas.ufl.edu FloridaAgCalendar.com
UF/IFAS Extension Septem ber 2005 Ag industry events
events statewide statewide


Citrus 1 2 3
Packingho se
Day

4 5 6 7 8 9 10
Holiday
Labor Day Flavor Chem end of UF
and Technol pay period

11 12 13 14 15 CRE16 17
Poster
Flavor Chem Symposium
Adv Citric I and Technol ____

18itrus ank19 20 21 22 23 24
greening mt
Flavor Chem end of UF
Adv Citric I and Technol pay period

25 26 27 28 29 30
Flavor Chem
Adv Citric I and Technol

Sun Mon Tues Wed Thurs Fri Sat
calendar.ifas.ufl.edu FloridaAgCalendar.com
UF/IFAS Extension October 2005 Ag industry events
events statewide statewide

1




2 3 4rod 5 6 7 8
Mgrs mtg
Holiday,
Flavor Chem end of UF 1-5 pm, UF
Adv Citric I and Technol pay period Homecoming

9 10 llccAl2 13 14 15
Seminar
Flavor Chem
Adv Citric I and Technol

16 17 18 19 citru20 21 22
Processors
Day
Flavor Chem end of UF
Adv Citric I and Technol Da period _
23 23 i 25 26 27 28 29
CitricI
30 1 Flavor Chem
____AdvCitrI ________ and Technol __________ ________


All events subject to change

September
1- Annual Citrus Packinghouse Day
16 "Meet CREC's Ph.D., Postd-doc
and Visiting Scientists: Posters and
Pastries A Research Symposium."
10 am 12 noon; BHG 1-2. Open to all
interested persons.
19 Citrus canker task force meeting;
citrus greening meeting, BHG.
October
5 Florida Citrus Production Managers
meeting, BHG.
7 Holiday, UF Homecoming, 1:00
- 5:00 pm.
12 Certified Crop Adviser Educational
Seminar. Registration and program:
www.crec.ifas.ufl.edu/cca
20 Citrus Processors Day and
Subtropical T elin 1:-*', Conference
Research updates for the citrus
processing industry

Courses at CREC Fall 2005
ADVANCED CITRICULTURE I HOS
6545 Dr. L. Gene Albrigo, Professor
of Horticulture, CREC
Monday, 4 -7 pm
BHG Conference room
Taught on-site at CREC; available by
videoconference at UF/IFAS locations
in Immokalee, Gainesville and Fort
Pierce

FLAVOR CHEMISTRY AND
TECHNOLOGY FOS 6317 Dr.
Russell L. Rouseff, Professor of Food
Chemistry, CREC
Wednesday, 4 8 pm
CREC BHG Teaching Lab
Taught on-site at CREC.

PLANT PATHOLOGY AND FRIENDS
- PLP 6905 Dr. Kuang-Ren Chung
Informal seminars every Fri. at 11 am
- 12 noon in the BHG Teaching Lab.
Topics not limited to plant p.,ill h ", .
Students, post-docs and visiting
scientists strongly encouraged to present
an informal seminar. Contact Dr. Chung
(krchung @crec.ifas.ufl.edu, or Ext.
1369) for more information or to sign up
for a seminar date.




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