Title: Citrus leaves
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00087049/00052
 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: April 2005
 Record Information
Bibliographic ID: UF00087049
Volume ID: VID00052
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.


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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

Citrus Leaves,

April 2005

m. U llI li .I I

In This Issue
Dr. McCoy Retirement Luncheon...... 1
In Memoriam Buster Pratt ............... 1
Whitney, Citrus Engineering Award 2
Pam 's Last Day ............................... 2
Dr. McCoy to Retire ........................ 3
Flowering Info, Disease Hotline ....... 3
Citrus Canker Economic Study ......... 4
Decontaminate ................................ 4
Meet .Meg Richards................... 4
Around CREC: Plant Path and Friends,
visitors from Egypt, Education Out-
reach, Dr. Ismail in Thailand, Luau
............................. .................... 5
Picnic Pics ........................................ 6
News Around CREC
W welcome, Farewell ........................ 7
Upcoming Seminars ........................ 7
Publications Submitted .................... 7
Calendar ................ ...................... 8

Welcome New CREC
Dr. Reza Eshani
Assistant Professor, Precision
Dr. Jose Reyes
Assistant Professor, Food
Process Engineering

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. Photography and graphics,
Gretchen Baut; Production and
Distribution: Word Processing,
Barbara Thompson, Supervisor;
Kathy Snyder, Karla Flynn and
Linda Murphy; Customer Service,
Kathy Witherington and Nancy

K- -
ll-CEWC faculty andstaff

are corAdfa invited

to a funcleon honoring

Dr. Clfayton '. McCoy


(Professor of Entomology

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In Memoriam
Buster Pratt
On a sad note, citrus grower
James B. "Buster" Pratt, Jr., passed
away on April 2 of congestive heart
failure at the ago of 80.
Mr. Pratt (pictured above, right,
with Dr. McCoy) was active in the
Florida citrus industry. He brought
together citrus growers, scientists
and regulatory personnel to establish
the Diaprepes Task Force to help
establish research priorities and
educational programs.
After serving in the Marines in
see Buster Pratt, p. 3

Cut and return to CREC Switchboard by April20

Cut and return to CREC Switchboard by April 20
or e-mail your response to kms@crec.ifas.ufl.edu

Response Card

Lunch is complimentary; RSVP required for lunch count.


In recognition of Dr Clay McCoy 's 33 years of service to UF/IFAS, CREC
and the citrus industry, a fund has been established towards support of
graduate student education in entomology. Dr. McCoy requests that in lieu
of gifts, donations be made toward student training in entomology. Checks
payable to the CRE Foundation can be delivered to the CREC Switchboard.

The Citrus Research and Education Foundation is a non-profit 501 (c) (3) '0ii:,m ',
established to support programs at the UF/IFAS Citrus Research and Education Center
Contributions are tax-deductible.

* N..

Dr. Whitney Receives Citrus Engineering Award r

Dr. Jodie D. Whitney,
UFProfessor Emeritus,
received the Citrus
Engineering Award at the
51st Annual Citrus
Engineering Conference at
CREC onMarch 10. Over
120 people attended the
conference, which was
hosted by the American
Society of Mechanical
Engineers Florida
The award, which is
sponsored by Progress
Energy Florida, recognizes

Dr. Elizabeth Webb (right) and Dr.
Whitney with the Citrus Engineering

lifetime achievements in Award plaque.
citrus engineering.
Recipients are selected by the conference's
planning committee, which was chaired by
Dr. Elizabeth Webb, Brown Citrus Systems,
Inc. Barry Wilson from Safechem, Inc. was
the program moderator.
Steve Rudolph of Progress Energy
Florida presented the award to Whitney,
which includes a plaque and a $5000
scholarship to be designated to the school
of the recipient's choice. This year's
scholarship will be donated to UF.
Dr. Whitney conducted research in
agricultural engineering for 37 years at CREC
retiringin2002. He worked closely withthe
Florida citrus industry on industry-funded
programs for citrus mechanical harvesting,
precision agriculture, mechanical pruning,
tree spacing and other aspects of citrus
production. Recent work involved the use
of computer and satellite technology to map
tree canopy and fruit yields in commercial

citrus groves,
maintain harvesting
labor records and
monitor citrus tree
health and
Dr. Whitney
holds a B.S. from
Texas A & M
University, M.S. from
Pennsylvania State
University and Ph.D.
from Oklahoma State
University. He is a
licensed professional
engineer and served
as an officer in the
U.S. Army and Army

The Citrus Engineering Conference is the
ASME's oldest conference of this nature,
focused on a specific topic. Opening remarks
were provided by Al Kurzenhauser, ASME
governor. "This is the best ASME meeting
of its kind," Kurzenhauser said, referring to
the quality of presentations and the support
from both industry and academia. Special
acknowledgement was given to Andy Hines
from Progress Energy (formerly Florida
Power), the organizer of the first Citrus
Engineering Conference.
Other CREC faculty that have received
the Citrus Engineering Award include the
FDOC's C.D. Atkins (1990), and UF faculty
Dr. Jim Kesterson (1997) and Dr. Chin Shu
Dr. Bill Miller, Dr. Rende Goodrich and Dr.
Robert Braddock serve on the Citrus
Engineering Conference planning committee.


m Russ' Last "Official"

Librarian Pam Russ' last official day at
CREC was March 31, when she was
presented with a collage of photos from her
38 years at CREC as librarian and webmaster.
She will continue to come in on an
occasional, "volunteer" basis.
Earlier in the month, a crew came in two
vans for the UF Marston Science Library's
Map Collection in Gainesville to pick up a
collection of aerial maps of the state taken
from 1968-2001. The map collection, which
included 210 canisters of film and several
hundred mylar prints (below), were part of
the state survey of citrus acreage reported
in the yearly Citrus Summary, published by
the Florida Agricultural Statistics Service in
Orlando. According to Pam, we had
warehoused the material since 1996, but it
will now be digitized and indexed at its new
home in the Marston Science Library.
Digitization should greatly facilitate the use
of this resource.
The process is underway to hire two new
professional staff positions as a librarian
and webmaster. Dr. Mickey Parish is
heading the librarian search committee, and
Dr. Richard Buker is heading the webmaster
search committee. Vivian Gregory is
available in the library to assist patrons, and
Monica Lewandowski, Gretchen Baut and
Word Processing can help on a limited basis
with website edits and changes.

e hp

Al Kurzenhauser,
governor of the
Above, Richard Bunce, program American Society of
committee member, and Andy Hines Mechanical Engineers,
(right) at the conference. Hines welcomed the
was the organizer of the first Citrus audience. "This is the
Engineering Conference 51 years best ASME meeting of
ago. its kind," he said.

Barry Wilson from
Safechem, Inc. (above left),
was the program moderator,
which included invited talks
and a panel discussion on
lessons learned by the
citrus industry after the
2004 hurricanes.

Dr. McCoy To Retire

End of May

Retirement luncheon at
CREC on April 29
Dr. Clay McCoy, UF/IFAS Professor of
Entomology, is retiring at the end of May
after 33-years at CREC.
Dr. McCoy will be honored a luncheon
at CREC on April 29. CREC faculty and
staff are invited to attend (see page 1).
Dr. McCoy has conducted research in
integrated pest management and biological
control of citrus pests.
In recent years, he has focused on the
Diaprepes root weevil, conducting
research on management measures,
including parasitoids and
entomopathogenic nematodes for the
biological control of the larvae. He served
as the scientific coordinator of the
Diaprepes Task Force, frequently working
with growers and students on research
projects and educational activities.
Dr. McCoy also conducted research on
microbial control agents, particularly
pathogenic fungi, for the biological control
of citrus rust mite and other mites. He
worked closely with Abbott Laboratories

from p. 1
World War II, Mr.
Pratt began working
as the Citrus
Experiment Station.
He worked in grove
operations for the
Coca Cola Food
Division while also managing the family
citrus operations, which he did until his
passing. He also served in the Korean War.
Bustci \\ .i a strong supporter of citrus
research, being instrumental in many efforts
to enhance our ability to meet industry
needs. His tireless efforts in seeking
solutions to Diaprepes damage to citrus
trees continues to have impact on funding
and program directions. Many of us will feel
the effects of his loss as a friend, colleague
and advocate," Center Director Dr. Harold
Browning wrote in a centerwide message.
Mr. Pratt also worked in past years with
CREC's Dr. Robert Koo (now retired) on
fertigation, helping to pioneer its use for
fertilizer application.

Dr. McCoy worked frequently with citrus
growers and students. Above, he points out
Diaprepes larval damage on a citrus root.
in the 1970s on the development of a fungus,
Hirsutella thomponsii, for the control of
citrus rust mite. Registered under the trade
name, MYCAR, this was the first use of a
fungus as a biopesticide for mites.
Prior to joining the CREC faculty in 1972,
Dr. McCoy spent five years at the USDA-
ARS laboratory in Orlando.
Dr. McCoy is a native of rural Minnesota.
He holds a B.S. in biology from Gustavus
Adolphus College, M. Sc. in entomology from
the University of Nebraska, and a Ph.D. in
entomology from the University of California,
Dr. McCoy and wife wife, Lynne, reside
in Winter Park and have two grown children.

He was a founding member and the
secretary/treasurer for the CRE Foundation,
a non-profit organization established to
support CREC programs.
Mr. Pratt was a past president of the
Florida State Horticultural Society and Polk
County Farm Bureau. Hewas inducted into
the Florida Citrus Hall of Fame in 2001, and
named Haines City Pioneer of the Year in 2004.
He was active in Florida Farmers of America
and other agricultural education activities.
Mr Pratt is survived by his wife, Jean, four
children, two sisters, and 10 grandchildren.
In lieu of flowers, memorials may be made
to the First United Methodist Church in
Haines City, or to the CRE Foundation here
at CREC.

Dr. Alice
Kersey, Polk
agent, retired
after 38 years!
A luncheon
was held in her
honor at CREC
on March 29,
attended by
several family members and friends,
including retired colleagues.

Flowering Info Online:
Gene Albrigo posts information and
advisories on citrus flowering: visit
crec.ifas.ufl.edu and click on the Ilo\ il
bud induction advisories" link in the
lower right hand corer.

Toll-Free Florida Citrus
Disease Hotline
As we enter the flowering season,
Florida citrus growers should be on the
alert for outbreaks ofpostbloom fruit drop
(PFD), scab, and Alteraria brown spot.
Growers can call a toll-free hotline
sponsored by Syngenta Crop Protection
(1-866-365-3017) for the latest disease
reports. Dr. L.W "Pete" Timmer, Extension
plant pathologist at CREC, provides
current information on recent outbreaks,
the status of the bloom and other relevant
news on the hotline.
Information on PFD and other foliar
fungal diseases is available on Timmer's
citrus pathology website
(www.crec.ifas.ufl.edu/timmer), including
his PFD-Fungicide Application Decision
System (PFD-FAD) and the Alter-Rater
model for scheduling fungicide
applications for Alteraria brown spot.

Far left: Buster Pratt was recognized by the
Diaprepes Task Force when he stepped
down as co-chair in 2001. He worked
tirelessly to establish programs on the
Diaprepes root weevil and helped secure
funding for research and education.
Above right: Mr. Pratt at a Citrus Research
and Education Foundation meeting. He was
a founding member and secretary/treasurer
of the CRE Foundation, a non-profit
organization established to support CREC

New UF/IFAS Study Says Benefits of Citrus

Canker Eradication Program Outweight Costs

The following article is adapted from a
UF/IFAS news release by Chuck Woods.
A new University of Florida study by
Ron Muraro (CREC), Thomas Spreen (UF
Food and Resource Economics), Jim Graham
(CREC) and Tim Schubert (FDACS Division
of Plant Industry) indicates the benefits of
the eradication program outweigh the costs
eight to one.
"Without the eradication program, citrus
canker will become widely established in
Florida, with serious long-term
consequences for the state's $9.1 billion
citrus industry," said Ron Muraro, a
professor at CREC. "It wouldjeopardize our
position in the world market."
If citrus canker were to become endemic
in Florida, exports of fresh fruit to Europe
would likely cease, he said. Over the long
run, the economic loss due to an endemic
canker problem would be nearly $2.5 billion.
The bacterial disease, which causes
lesions on the leaves, stems and fruit of
citrus trees, weakens citrus trees, causing
a loss in yields and higher production
costs. Removal and burning of infected or
exposed trees is the only way to stop the
"Opponents say Florida should
abandon the current eradication program
and learn to live with the citrus canker
problem," Muraro said. "They contend that
the citrus industry will not incur losses that
are big enough to outweigh the cost of the
eradication program, but our research clearly
indicates that this would not be the case."
Dr. Thomas Spreen, UF/IFAS Professor
of Food and Resource Economics, added
that the cost estimates for concluding the
eradication program in 2008 were developed
in June 2004 before the hurricanes passed
through the state. No\\ we are beginning
to see new outbreaks of citrus canker in
Southwest Florida and the Indian River area,
which means the program may have to
continue beyond 2008," said Dr. Spreen.
Dr. Jim Graham, a professor of soil
microbiology at CREC, is studying the
pathology of the disease and evaluating
various control methods, said decisive
action is the best policy when canker
threatens the Florida citrus industry.
Outbreaks of the disease have plagued the
industry since the early 1900s, but have
been throttled by eradication efforts in
earlier campaigns. Previous programs

eradicated canker from the state in 1933 and
Summaries of the studies are online at is
available on the UF/IFAS Extension
publications database (edis) at
edis.ifas.ufl.edu/FE531 and edis.ifas.ufl.edu/
Ron Muraro encourages anyone
interested in learning more about the study
to contact him at Ext. 1203 or by e-mail,

Meet... Meg Richards!
Meg Richards is a M.S. student in food
science, working with Dr. Mickey Parish at
CREC. Her research involves sanitation of
food transport tankers, specifically
investigations on the cleanliness, types of
microflora, and biofilm formation present
on the surfaces of clean manway gaskets
of liquid transportation tankers.
Meg was born in Elmira, New York, but
spent most of her life in Corning. She
graduated for Coming Painted-Post East
High School in 1999, Coming Community
College in 2001 with a degree in
mathematics and sciences, and
from Cornell University in 2004
with a B.S. degree in food
science (emphasis in food
"As a child I was very
interested in science and did a
lot of experimenting in the
kitchen with food, probably
very much to my mother's
displeasure" Meg writes about 4%
her initial interest in science.
"Throughout high school I
planned to get a degree in Meg decide
biology, do research in career in f
biological sciences before I attending a
became certified to become a
program at
high school biology teacher.
My plan changed after I went on a 4-H three-
day career exploration program about food
science at Cornell in the summer of 1999.



CREC employees are reminded that there
are strict regulations on decontamination
of personnel, clothing, tools, equipment
and vehicles upon entering/exiting citrus
groves, greenhouses and/or handling
citrus material, as well as restrictions on
the movement of plant material and fruit
off the Center. Questions canbe directed
to you supervisor or to Dr. Timmer at
UF/IFAS Citrus Pest Management
Guide for decontam/disinfection

FL Dept. of Agriculture & Consumer
Services: doacs.state.fl.us/canker
For quarantine maps: doacs.state.fl.us/
Florida Citrus Canker Eradication
Miami: 800-850-3781 Winter Haven: 800-
Palmetto: 941-721-6622 Immokalee: 941-

Photos of citrus canker symptoms:

Food science for me
brought together all the
aspects I love about
science together with my
love for cooking and
experimenting with foods.
I have done externships
with Kraft Foods and
1. Unilever-Best Foods, and
S. an internship with Blue
Lake Citrus Products."
S Meg's parents,Ted and
STina Richards, reside in
:o pursue a Coming, NY. She has five
science after siblings: Cindy, Heather,
r Daniel, Jessica, and
H career Benjamin, and two
mnell. rabbits, Hannah and
Buster. She enjoys many hobbies, including
cooking, sewing, quilting, reading, playing
the French horn, going to the theater,
camping traveling doing ballet and voca
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Staff Opinion Survey Due April 15
UF is conducting an opinion survey of TEAMS
and USPS employee on issues related to UF and
work life. The survey is conducted by an
independent consulting firm and individual re-
sponses will be kept confidential from UF

TEAMS and USPS employees should have received
paper surveys, to be returned in the envelope
provided. Employees are strongly encouraged to
participate in this first-ever staff opinion survey.

Denise Dunn (left) presented
a "Plant Path and Friends"
u seminar, "The nematode-Bt
Connection Bacillus
thuringiensis crystal
proteins: toxins that target
nematodes?" on March 11.
Dr. Mickey Parish presented,
"An Introduction to Food
Microbiology" on April 1.
Plant Path and Friends meet
every Friday morning at 11 a.m. in the BHG Teaching
Lab. Students, post-docs and visiting scientists are
especially encouraged to present informal seminars.
Topics are not limited to plant pathology.

Dr. Monica Lewandowski presented information
on the history of the Florida citrus industry to Dr. James
Holeton's Florida history class at Warner Southern
College on March 2.
She also participated in Florida Ag Literacy Day on
March 17 by reading a designated story, "How
Groundhog's Garden Grew," to pre-k 3, pre-k 4 and K-
2 classes at St. Paul's School inWinter Haven. Monica
also spoke about life on her family's raisin ranch in
Kingsburg, California, demonstrated how to "roll
raisins," and brought different varieties of citrus.
The event is sponsored by the Florida Ag in the
Classroom, part ofFDACS, a non-profit organization
that works to promote agricultural education. Statewide,
ag industry representatives visited two thousand
classrooms on that day. Florida Ag in the Classroom is
funded by the "Florida agriculture" license plates.


A3 A


Above: CREC hosted a group of agricultural scientists from Egypt on March
30. The group is visiting UF and Ohio for several weeks. On their visit to
CREC, they met with Dr. Gene Albrigo, grad student Shamel Eldein, Dr. Jude
Grosser, grad student Ahmad Omar, Dr. Fahiem Elborai Kora, Dr. Mohamed
Ismail, Dr. Clay McCoy and Dr. Robin Stuart.

Dr. Mohamed Ismail
traveled to Thailand
on March 10 -24 as
guest of the Dr.
Rattanapanone of the
Postharvest .
Technology Institute
at Chiang Mai
University. The travel was supported by a grant from Asia Development Bank
to teach a short course in postharvest biology and technology to graduate
students at the university. Dr. Ismail also visited the city of Fang near the
borders with Myanmar (Burma) where most of Thailand's citrus is grown. The
visit also included some sightseeing in both Chiang Mai and Bangkok, and
including the famous Benchamabopitr/Marble Temple in Bangkok (photos).
"During the 6 months since my retirement from the FDOC, I have traveled
to Italy, Greece, Egypt and Thailand to lecture at various universities and
Qovemment institutions Dr Ismail writes

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Good weatherr for a Picnic
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Fjcilic.i jnd int .Iii oih iS lfoi losing, i i. \ciji picllic
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Above, left: Dr. Rao helps Michael McCoy with a game of dexterity that involved picking out paper clips out of rice grains in a timed
event. Second from left, Dr. Lihua Cao helps the kids with a game of "Scooping the Cotton Balls," something that is harder than it
looks. Center, Jim Baldwin keeps the ice chests stocked. Second from right: Amir Afunian concentrates during the "egg on a spoon
race"; far right, Misty Holt helps the Reyes boys Carlos (left) and Andreas (center), as Amir looks on.

More Picnic i. "I
Lions Park in
Lake Alfred was ,
the site of ..
another picnic, ,
this one on .
March 23 as a
farewell party
for Dr. Elisabeth
Knapp (far left
photo). Second from the left, John Cook works on the barbecue; center, Diann Achor; and far right, Julia Beretta (left), Ana Redondo
and Dr. Mathias Choquer enjoy the cool evening weather. Photos by Dr Tatineni Satyanarayana.

yL I




Jennifer Vick OPS (Dr. Syvertsen)
Lynn Hines OPS (Dr. Childers)
Mark Maliszewski OPS (Dr. Albrigo)
Welcome to Dr. Reza Ehsani and Dr. Jose Reyes,
new UF/IFAS faculty members
Tammy Flannery FDOC (S. Barros)
Dr. Elisabeth Knapp postdoc (Dr. D Lewandowski)
Sharld Brickman OPS (Dr. Grosser)
SharonKnauf OPS (Dr Grosser)

Robin Bryant, FDOC's mechanical I TammyFlannery,
harvesting program administrator, who worked for
has relocated her office to the the FDOC, has a
FDOC headquarters office in new job with the
Lakeland. Florida Dept. of
w- Agriculture and
Dr. William Stinson has been 1 Consumer
named the FDOC's scientific Services Food
research director. Mike Sparks, Safety Division in
who served in an interim role, is at Winter Haven.
the FDOC office in Lakeland.

Dr. Elisabeth Knapp, a postdoc at CREC with Dr. Dennis Lewandowski (left),
moved to accept a position with the Fraunhofer Center for Molecular Biotechnology
in Delaware. At CREC, Dr. Knapp worked with Dr. Lewandowski on the tobacco
mosaic virus as vectors of genes of interest in plants. Practical applications include
the production of proteins, including pharmaceuticals, in plants. At Fraunhofer, Dr.
Knapp will be involved in similar work. Dr. Shaila Rabindran, a formerly at CREC, is
also at the Delaware center.
Right, Dr. Knapp was presented with an oil painting of a Florida landscape, done
by Dr. Dennis Lewandowski, at a farewell reception on March 24. She was also given
a framed collage of photos from her CREC days, including several soccer team photos.

Upcoming Seminars
Dr. Allen Overman, Professor ofAgricul-
tural and Biological Engineering, UF
Tuesday, April 19
11 am 12 pm (refreshments at 10:45)
BHGRoom 1
Florida Population Trends: The Case of
the Missing Million

Dr. Overman has carried out research on advanced
soil and water engineering, water reclamation and
reuse, chemical transport, crop response to
nutrients & water and mathematical modeling. He
has authored over 200 publications, including a
textbook on crop models. Population changes
influence land values, water use, and impact most
Floridians. Dr. Overman's seminar will relate
population to water issues and other topics from
the perspective of a scientist/engineer/farmer.

Dr. Mickey Parish, Professor of
Food Microbiology, CREC
Tuesday, April 26
11 am 12 pm (Refreshments at 10:45)
"Alicyclobacillus-mediated spoilage
of low pH beverages"

All personnel welcome; all seminars
are open to the public.

Manuscripts Submitted in March
A. Roy,A. Fayad, G Barthe, and R. H. Brlansky. AMultiple Polymerase Chain Reaction Method for Reliable Sensitive and
Simultaneous Detection of Multiple Viruses in Citrus Trees. Journal of Virological Methods.
R. Yuan, F. Garcia-Sanchez, F. Alferez, I. Kostenyuk, S. Singh, G Zhong, J. P. Syvertsen, and J. K. Burns. The Effect of Annual
Defoliation of Orange Trees on Yield, Juice Quality, Leaf Gas Exchange, and Fruit Size and Number. Journal ofthe American
Society of Horticultural Sciences.
R. S. Buker, III and R. E. Rouse. The Influence of Citrus Rootstocks onBidenspilosa Interference with Citrus sinensis. Weed Science.
L. R. Parsons. Soil Water Sensors for Improved Irrigation Management. Florida Grower
M. Salyani and W. M. Miller. Precision Application Technology for Monitoring Soil Applied Pesticides in Florida Citrus Production.
7th Symp. on Fruit, Nut, and Vegetable Prod. Eng. Symp.
S. Gowda, T. Satyanarayana, C. J. Robertson, S. M. Garnsey, and W. O. Dawson. Infection of Citrus Plants with Virions Generated in
Nicotiana benthamiana Plants Agrionfiltrated with a Binary Vectorbased Citrus tristeza virus. Proc. of the 16th Conf IOCV
M. E. Rogers. Insecticide and Miticide Resistance Management. Citrus Industry Magazine.
D. G Hall, R. E. Burns, C. C. Jenkins, K. L. Hibbard, D. L. Harris, J. M. Sivinski, and H. N. Nigg. AField Comparison of Chemical
Attractants and Traps for Caribbean Fruit Fly, Anastrepha suspense (Loew) (Diptera: Tephritidae) in Florida Citrus. Journal of
Economic Entomology.
H. Li, R. J. Stuart, J. P. Syvertsen, S. H. Futch, C. W. McCoy, and A. W. Schumann. Association of Soil pH, Water, Magnesium and
Iron with Citrus Tree Decline and Diaprepes abbreviatus Root Weevil Distributions in Two Fields. Journal ofExperimental Botany
(Plants and the Environment Section).
H.-Q. Chen, L. Cao, K. L. Dekkers, J. A. Rollins, N. J. Ko, L. W. Timmer, and K.-R. Chung. ANovel Transcription Regulator Required
for Fungal Pathogenesis in Colletotrichum acutatum causing Key Lime Anthracnose. Molecular Plant Faii-. .i.
C. C. Childers, R. J. Beshear, G Frantz, and M. Nelms. AReview of Thrips Species Biting Man Including Records in Florida and
Georgia Between 1986-1997. Florida Entomologist.
Q. U. Zaman,A. W. Schumann, K. Hostler. Estimation of Citrus Fruit Yield Using Ultrasonically-Sensed Tree Size. Applied
Engineering in Agriculture.


Sun Mon Tues Wed Thurs Fri Sat

calendar.ifas.ufl.edu FloridaAgCalendar.com
UF/IFAS Extension A pr l 25 Ag industry events
events statewide statewide

1 2
Plant Path and

Citrus Pest Mgt
course 3-6 pm

3 4 5 6 7 8 9
Plant Path and
end of UF pay Friends
Citrus Pest Mgt
course 3-6 pm

10 11 12 1 14 15 16
Certified rop 14 15 16
FI Rural
Florida Citrus Adviser Water Plant Path and
Nurserymen seminar Friends
meeting Fl Rural Citrus Pest Mgt
Water course 3-6 pm

17 18 19 20 ef 21 22 231
Seminar pedod
Dr. Overman Plant Path and
Dr. Overman Fe
Citrus Pest Mgt
course 3-6 pm

24 25 26 27 28 Dr. 29 30
Seminar: McCoy Retire-
Dr. M. Parish ment Luncheon
Plant Path and

All events subject to change.
13 Certified Crop Adviser Nutrient Mgt.
and IPM Educational Seminar. BHG 1-2.
Program online: www.crec.ifas.ufl.edu/cca

13-14 Florida Rural WaterAssoc.
seminar, BHG 3-4.

19 Seminar, Dr. Allen Overman, UF
Professor ofAgric. and Biological
Engineering. Florida Population Trends: The
Case of the Missing Million. BHG 1, 11 am -
12 pm (10:45 am, refreshments).

26 Seminar, Dr. Mickey Parish, Professor
of Food Microbiology, CREC.
"Alicyclobacillus-mediated spoilage of low
pH beverages." BHG 1,11 am 12 pm
(10:45 am, refreshments).

29 Luncheon to honor Dr. Clay McCoy,
BHG 1-2; noon.

Classes at CREC This Semester:

Citrus Pest Management course offered at
Thursday, Jan. 6 -April 28, 2005; 3 6
p.m., BHG Teaching Lab

Plant Path and Friends hold weekly
seminars every Friday at 11 am 12 pm in
the BHG Teaching Lab. CREC personnel,
especially students and post-docs, are
encouraged to present informal seminars.
Topics are not limited to plant pathology. For
more information, contact Dr. Chung,

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