Title: Citrus leaves
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Permanent Link: http://ufdc.ufl.edu/UF00087049/00011
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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: November 1999
 Record Information
Bibliographic ID: UF00087049
Volume ID: VID00011
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.


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Institute of Food and Agricultural Sciences

Citrus Leaves

Citrus Research and Education Center News and Information

CREC News Release

Grapefruit Juice Flavor, Food

Safety and More At CREC's

50th Annual Citrus Processors' Day

Dr. Harold W. Broning Center Director
Citrus Research & Education Center
700 Experiment Station Road
Lake -\tred, FL 33850-2299
Tel, (863)956-1151
Fax Oh31 956-4631

November 19991

Volume 17, No. 11

Juice Processing History-Makers

LAKE ALFRED Grapefruit juice
and food sale' there ke topics atthe
50th Annual Citrus Processors' Day
and Subtropical Technology Confer-
ence at the Univer-
sit% of Florida (UF) Processing H
Citrus Research BHG Citrus F
and Education Cen- old photos an
ter (CREC) on Oc- CREC's Proc
tober 21. past and prei
This year's and suggest
meeting % as a mile- and correctio
stone, acknowl- this work-in-p
edged Dr. Harold Monica Lewa
Browning, CREC

Center Director. This was the fifti-
eth annual meeting where scientists
and engineers from the UF Institute
of Food and Agricultural Sciences
ory on display in U.S. Depart-
Come view ment of Agri-
Posters on culture (USDA'
sing Program and other labo-
t. Contributions ratories have
Sfor additions come to share
are welcome for their latest re-
search news
iress see search ews
owski. see paLet' 4

FDOC-Fresh Fruit Division
Receives FDA Grant
* Pao and Davis Study Food Safety

Dr. Steven Pao and
Craig Davis of the Florida
Department of Citrus
'FDOC) Fresh Fruit Divi-
sion were awarded a
$22,760 grant b% the U.S.
Food and Drug Adminis-
tration (FDA) for food

Read the latest
news from
FDOC's Fresh
Fruit Division, p. 3

safety research, announced Dr.
Mohamed Ismail, Scientific Research
rhe study pertains to new FDA
regulations for fresh-squeezed orange
juice and other unpasteurized or un-
processed fruit and vegetable juices.
Fresh juices are under scrutiny be-
cause of some recent food-borne out-
breaks that were traced to these prod-

For the study,
Pao and Davis iden-
tified non-patho-
genic organisms
that are similar to
the human patho-
gens, Salmonella
spp. and Escheri-

Drs, Ed Moore len I and Bob Carter, at the 50th Annual
Citrus Processors' Day on October 21. Dr. Moore was part
of the original team of FDOC researchers that developed
frozen concentrate in the 1940's. Dr. Carter was a FDOC
scientist at CREC from 1969-1992. For more photos. see
page 4.

FDOC, Bestfoods Launch New
Citrus Salad Dressings

chiacoli0157:H7. Thenon-patho- I
genic organisms, called "'surrogate ., .
see page 2

In This Issue
Citrus Processors' Day ........... 1
FDOC Receives Grant ............ 1
FDOC History ........................ 2
Latest News FDOC Fresh Fruit
Research ............................... 3
Photos from Processors' Day .. 4

Soccer Team ................. .... 5
Pesticides & Cancer ............. 5
New Citrus Salad Dressing .... 5
News Around CREC............... 6
Dr. Bar-Joseph Farewell ........ 6
Awards & Announcement ..... 6
P-Card Don'ts ..................... 6
From the Mailroom ............... 6
Superior Accomplisnment 6

Peggy Troelson serves a
salad made with a new
Hellmann's citrus-based
salad dressing at the
Florida Citrus Commis-
sion meeting on October
27. For story and more
photos, see page 5.

From Personnel .............
Welcome & Farewell......
New Grandparents.,........
Training and Development
Courses at CREC Nov. 2.
Manuscripts ... ......


id p


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


The Florida Department of Citrus (FDOC) and the I 'nivrsun of Florida have been partners in citrus
research at CREC for over fifth years. Below, Dr. Mohamed lhmail, FDOC Scientific Research Direc-
tor for Fresh Fruit, shares with us the history of the FDOC's scientific research program at CREC' Dr.
Ismail has been conducting research on fresh and processed citrus in the areas offlavor chemistry.
abscission, postharvest quarantine treatments and quhli.e control at Lake .41fred since December 1966.

100% PURE

by Dr. Mohamed Ismail
In July 1947, Florida Citrus Com-
mission (now FDOC) scientists Dr. Ed
Moore, Mr. C.D. Atkins and Mr. Richard
Huggart packed up their equipment.
glassware and books and moved from the
USDA Citrus Products Station in Winter
Haven to a new processing research
building at CREC (then called the Citrus
Experiment Station) in Lake Alfred.
They joined Dr. E.F. Hopkins and
Mr. K.W. Loucks, who had already set
up working labs and a packinghouse line
at CREC to study postharvest fruit decay
Their move completed the imple-
mentation of a 1941 amendment to the
Florida Cirrus Code, authorizing the
creation of a Research Department of the
Florida Citrus Commission for studies on
citrus fruit and juice quality, nutrition,
new citrus products and other related
The Legislature also stipulated that the
new department be provided with
"suitable and sufficient laboratory
facilities and equipment. making use of
the laboratory facilities and equipment of
the University of Florida insofar as it is
practicable for the purpose of conducting
thorough and comprehensive study and
Thus the road for a partnership
between the two organizations was

FDA Food Safety Grant
From page I
organisms." must have similar character-
istics as the disease-causing organisms, yet
be safe for use in fruit disinfection stud-
Pao and Davis conducted part of their
experiments at the Florida Department of
Agriculture Laboratories in Tallahassee.
They compared attachment strength. ther-
mal tolerance and chemical resistance of

paved, and for 50 years, University and
F DOC scientists have worked together to
serve the technical needs and solve
problems of the Florida citrus industry -
each group contributing in its own way to
the welfare of Florida citrus growers.
packers and processors.
The first Director of Scientific
Research was the late Dr. L.G.
MacDowell, who headed a team com-
posed of Dr. E.L. Moore and Mr. C.D.
Atkins in developing and patenting the
process of manufacture of frozen
concentrated orange juice. After Dr.
MacDowell's retirement in 1968, he was
succeeded by Dr. John A. Attaway, who
headed the FDOC's scientific research
program until January 199 5
Today the department has two
directors: Dr. Bill Stinson heads the
Processed Products research unit, while
Dr. Mohamed Ismail leads the Fresh
Fruit research unit. The Harvesting
program is directed by Dr. Galen Brown.

several different surrogate organisms to
human pathogenic strains of Salmonella
and E. coli 0157:H7.
Surrogate organisms can be used by
juice manufacturers to demonstrate
whether their practices or treatments are
effective in "reducing, or eliminating harm-
ful bacteria by 100,000-fold." The 100,000-
fold reduction in bacteria is referred to as a
"5-log reduction." If manufacturers can-
not or do not demonstrate the sanitary ca-

Both the Processed Products and Fresh
Fruit units are committed to serving the
technical needs of the Florida citrus
industry and increasing public consump-
tion of fresh and processed citrus.
FDOC scientists are specialists in
engineering, food technology, biochem-
istry, plant physiology, plant pathology,
food microbiology and postharvest
technology. Their work complements
that of University faculty, thus providing
effective and efficient utilization of
taxpayers' money. The FDOC also
supports medical research through direct
grants awarded to prominent scientists
that study the importance of citrus in
nutrition, maintaining good health and
combating disease.
As the FDOC Scientific Research
Department at Lake AIfred enters its
second 50 years, greater emphasis is
placed on enhancing the relevancy of
research activities to the needs of the
Florida citrus industry. More coopera-
tion has been initiated with the Fresh,
Processed Products. Food Service and
International Marketing business units as
well as the advertising and public
relations agencies at the FDOC Lakeland
headquarters. This ensures greater
utilization of the research results of a
newly focused and committed research

abilities of their juice-making process, the
juices must carry a label that states:
"WARNING: This product has not been
pasteurized and. therefore, may contain
harmful bacteria that can cause serious ill-
ness in children, the elderly, and persons
with weakened immune systems."
Pao and Davis are also conducting re-
search on heat and chemical treatments for
citrus fruit to eliminate surface bacteria..

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


The Florida Department of Citrus Scientific Research Fresh Fruit
By Dr. Mohamed Ismail. Learn what's going in the FDOC's Scientific Research Fresh Fruit and the
Harvesting Programs, and look for news from the FDOC's Processing team in a future issue.

Dr. Mohamed Ismail. Scientific Re-
search Director for Fresh Fruit, is also
the team leader for the development
a of automated citrus peeling equip-
ment. The FDOC has an ongoing
agreement with a Fresh-cut fruit and
vegetable manufacturer to develop,
manufacture and market citrus infu-
Ssion and peeling equipment. In April
1999, the FDOC and CREC com-
pleted construction of a 500 ft.2 Clean
Room facilir in the Packinghouse
Building. The room is the first of its type at CREC. It houses
FDOC prototype citrus peeling and packaging equipment.

Mark Thomas, FDOC Food Engineer,
is in charge of the citrus peeling,
sectionizing and packaging equipment
development and operation. Among his
responsibilities are optimizing the citrus
peeling process and integrating the
operation of the citrus peeling line.
Mark is a talented engineer % ith
excellent experience in curing, welding
polishing and fabrication of stainless
steel equipment.


Dr. Huating Dou (left), Research
Scientist and postharvesr ph) siologist.
has identified 45" F as the optimum
temperature for reducing postharvest
pitting during storage and shipping
Posthar'est peel pitting is a peel
disorder of most citrus fruit. particu-
larly white grapefruit and Faliglo
taneerine It is associated with waxed
fruit held at 50F or greater.
Dr Dou continues to evaluate the
effect of temperatures and various wa\
coatings on peel pitting and keeping
quality of grapefruit He is also
S ealuating a nondestructive method
S for predicting pining prior to its
h'. appearance. Dr. Dou is assisted by
'l 1' Mel Chambers (let).

Dr. Galen Brown is the Harvesting
9 Program Administrator in charge of a
multimillion dollar Mechanical Har-
vesting Program, funded exclusively
Sby the Florida Department of Citrus.
The program's mission is to develop
Viable, efficient and economical me-
chanical harvesting systems for
Florida's processed oranee crop. Dur-
ing the past four years, several systems
were tested including trunk shake-
catch system, continuous canopy shake-catch system and the
Canopy Penetrator.
In addition, a team of CREC scientists is engaged in a compre-
hensive research program aimed at better understanding the physi-
ology, genetics and biochemistry of citrus abscission. The Har-
vesting program is closely monitored by the Florida Citrus Har-
vesting Council. which meets monthly at the FDOC Headquarters
in Lakeland.


Dr. Steven Pao (above left) FDOC Research Scientist and
Food Microbiologist, received a $22,760 Food and Drug
Administration grant to identify surrogate organisms to be used
in sanitation verification studies in fresh citrus juice operations
(see article on p. 1).
For the last three years, Dr. Pao, along with Craig Da% is
(above right), have conducted an intensive research program
aimed at sanitizing citrus fruit and eliminating surface micro-
flora prior to juice extraction. He holds a patent on water
injection in citrus to facilitate fruit peeling

The FDOC Fresh Fruit Research
S staff also includes Tommy Long
i' s leftt, Merritt Daugherty, Virgil
Stewart, Ellen Wheeler. Cindy
Livingston, Lura Rurman and
Beverly Jakelsk.. Tommy is in
charge of the Pilot Plant Opera


Citrus Processors' Day

Dr. Jim
right, III'
scientist from
1 -17-198f.
to the area of
juice and by-

Dr. Kevin Goodner, ferL
a former CREC post-doe
who worked with Dr.
Russell Roucefl, is now a
Research Chemist at the
USDA Citrus and
Subtropical Producti
Laboratory in Winter
Haven. Dr. Goodner was
a speaker at the USDA
Subtropical Technology
Conference during the
afternoon session.

Citrus Processors' Day Highlights
From Page 1

with the citrus industry.
The event was originated in
195t). just after the develop-
ment of frozen orange juice
concentrate by a team of
F DOC researchers. The de-
velopment made it possible
to ship orange juice to new
markets world ide. leading
to the rapid growth of the
citrus industry.
The conference came
at the heels of medical re-
ports that consumption of

Dr. William Stinson, FDOC
Scientific Research Director,
Processed Products.

citrus fruits and juices can
reduce the chance of stroke, noted Dr.
William Stinson, Florida Department of
Cirus (F DOC Scientific Research Direc-
tor, Processed Products. The FDOC con-
tinues to pursue studies on the health ben-
efits of citrus, juice quality and new citrus
,While technology) and the world mar-
kerplace have changed dramatically in the
past fifth) years, issues such as juice qual-
ity and food safety continue to receive at-
tention today.

Aroma, Color and Grapefruit Juice
Scientists point to aroma as the key
to flavor, as it is our sense of smell, not
taste, that plays the primary role in our
perception of flan or.
4roma volatiles are the major com-
ponent of flavor quality," said Dr. Russell
Rouseff, UF CREC Professor of Food
Chemistry. Aroma differentiates the

"best" from "average"
grapefruit juice quality and
flavor, according to
Rouseft. Dr. Steven Nage
(FDOC), Dr. Philip Shavw
(USDA) and other scien-
tists are using gas chroma-
tography, electronic nose
sensors, human sniffers and
other methods to identify
aroma compounds in
grapefruit juice that con-
tribute to both pleasant and

unpleasant flavor. Nagy
noted that some compounds are so potent
that minute levels can give juice unpleas-
ant, even rotten flavors.
Dr. Elizabeth Baldw in, a researcher
from the USDA Agricultural Research
Service's Citrus and Subtropical Products
Laboratory in Winter Haven, reiterated the
importance of aroma. "Your tongue can
detect compounds in [concentrations of]
parts per hundred, but the nose can detect
[concentrations of] parts per trillhn."
Baldwin explained. Baldwin's research is
aimed towards developing better-tasting
tomatoes with good shipping qualities.
In concert with flavor research, Dr.
Hyoung Lee, FDOC, discussed the impor-
tance of color injudging grapefruit quality.
and maturity, as well as a factor in con-
sumer preference. Lee is developing ob-
jective methods for evaluating grapefruit
juice color, which can vary widely from
pink to deep red, depending on the variety.
In related research, Dr. Wilbur

Widmer, FDOC, discussed the evaluation
of techniques to clarify juice so that bitter
compounds in grapefruit juice can be re-
moved during processing.

Food Safety
In the area of food safety, Drs. Renee
Goodrich, Jan Narciso and Mickey Parish
are working on improved methods for
monitoring fungi levels in juice and juice
packaging materials. Goodrich pointed out
that current tests are labor-intensive and
improvements are needed.
Parish. who spent a year in Washing-
ton, D.C. on a Congressional Science Fel-
lowship working with lawmakers on food
safety issues, shared some of his insight
into how science influences the legislative
process. Parish discussed the importance
ofconnmunicating with lawmakers and pro-
viding scientific information to Congres-
sional members and their staffs on food
safety and related issues.

Nutrition and More
Researchers also reported on the de-
velopment of new citrus products, im-
proved procedures tor measuring ascorbic
acid content in citrus juices, studies on the
processing of citrus by-products in feed
mills. and the novel use of enzymes to gen-
erate flavor compounds in fruit.
The chairmen for this year's confer-
ence were Sean Frielich of Pasco Acquisi-
tions in Dade City and John Neiswanger
of Minute Maid in Pln mouth. Florida.
Goodrich served as organizer for the event


Kees Wisse, who worked with Dr,
Mickey Parish at CREC, came all the
way from The Netherlands, where he
works on new food products for Reidel,


Soccer player I ikui Ving

New C

Sandy [iarro, (leftl I serves up so
27, along with (right photo, L t
Hoobin. I hey' prepared a chick
The Jre.sings will be in super

Dr. William Stinson, EDIX
tific Research Director Proc
Products, announced that a n
citrus-based salad dressings
on the market. The new sala
given the product name Citr
were developed in a partners
between the FDOC and Best
salad dressings will carry the
Sunshine Tree logo.
The official announcement
the October 27 Florida Citru
sion (FCC) meeting at the FT
headquarters in Lakeland. T

Broccoli and citrus got so
PR in the news as a recent m
reported that consumption of
vegetabless I broccoli, cabbag
flower, e.g ), leafy green xec
citrus fruits and juices may
chance of ischemic stroke.

Soccer Team Heads into Final
Stretch Of Season
The CREC Soccer team is 2-2-2 (as of 10 30) as they
continue to dominate Polk City Ace Hardware (2 lop-
sided victories), play evenly with the Landsharks (2 ties).
and struggle against United (2 losses) in the Auburndale
Co-Ed Fall Soccer League. Remaining games at
Caldwell Elementary School, 141 Dairy Rd., Auburndale:
Nov. 7: CREC vs. Landsharks, 3:15 pm
Nov. 14: CREC vs. United, 1:30 pm
Nov. 21: Year End Tournament. time TBD

itrus Salad Dressings

r Sw~^^ i^^^*^

me salad at the Florida Citrus Commission meeting on October
SRi Nlelisia Neff Pegg.u relNon, Kitty Sheung, and Eileen
en dish and salads made with new citrus-based salad dressings.
markets next spring.

)C Scien-
ew line of
will soon be
d dressings,
us Splash,
foods. The

nt came at
s Commis-
he develop-

ment of new citrus products is a part of
the FDOC's Solids Strategy, looking for
new uses for citrus in food products. The
FDOC is working with other food
manufacturers to develop citrus-based
jams, dressings, marinades, barbecue
sauces and desserts.
Attendees at the FCC meeting were
treated to a lunch, prepared and served by
Sandy Barros and a team that included
Kitty Sheung. Eileen Hoobin, Peggy
Troelson and Melissa Ner'. Sandy Barros
leads the Solids Strategy research at

UF Newsletter Cites
Study That Shows No
Link Between Pesticides
and Cancer

From the October 1999 II- II AS Extension
Nc\ 3lcttcr. C(hem, i llh Speaking, an excerpt
from th' arnile. "Worn ing About Pesticides
in Food," (rlmini;cllt Speaking is puhl ihed
by the UF Pesticide Information itlie. and is
posted on the web: fshn.ifas.ufl.edulpest/

Worrying About Pesticides in Food
According to a study conducted by the
American Institute for Cancer Research
(AICR), "77 percent of people believe
that eating foods treated with pesticides
increases cancer risk." However, the
Institute also reviewed more than 4,500
published peer-reviewed studies and
"found no convincing evidence that
eating foods containing trace amounts of
chemicals including pesticides and
fertilizers changes cancer risk." In
contrast, the Institute said that eating five
or more servings of fruits and vegetables
"was found to significantly lower the risk
for many cancers."
The Institute was not able to find any
evidence to support a link between
pesticide residues on produce and cancer.
The authors of the report said that
"maN he 1% of cancers are derived from
.. ingesting the wrong substances,
whereas 30 to 40% of cancers can be
avoided or the risk of them can be
reduced by eating the right foods." The
right foods included at least five ser' ings
daoil of a plant-based diet (lots of salad,
vegetables and fruit) to reduce the risk of
- See entire article in the October 1999 issue -
plus more information:

al Study Says Crucifers, Citrus Reduce Chance of Stroke

me positive
medical study
e and cauli-
,etables and
reduce the

Ischemic strokes are caused by an ar-
tery blockage in the brain. Published in the
October 6 issue of the Journal of the Ameri-
can Medical Association (JAMA), the re-
search was funded by grants from the Na-
tional Institute of Health and a smaller grant
from the Florida Department of Citrus.

The multi-year study was based on ob-
servations of more than 114,000 women
and men in the Nurses' Health Study and
the Health Professionals' Follow-up Studi.
For the complete article, see the Oct.
6 JAMA issue on www.iama.com.

i .5. i



Fond Farewell To Dr. Moshe Bar-Joseph [ Awards

Dr. Moshe-Bar Joseph
returned to his home country
of Israel after a one-year
.. sabbatical at CREC. where he
conducted citrus tristeza virus
(CTV) research in Dr. Bill
Dawson's laboratory. Dr.
Bar-Joseph is a scientist at the
Volcani Center in Bet Dagan.
Israel, and one of the world's
leading authorities in citrus
Plant pathology. To Dr. Bar-
Joseph, it was a privilege to
work with you and learn from you, and we will miss you.


Remember, furniture, freezers and refrigerators
are among the list of items that CANNOTbe
purchased with the P-card!


November 15 Deadline For
UF Superior Accomplishment Awards

Show an employee how much you appreciate his
or her work and commitment nominate an
employee for the UF Superior Accomplishment
Awards (SAA) Program
The SAA Program recognizes faculty, A & P
and USPS employees that have contributed out-
standing services during the 1998-9) academic year.
Awards include monetary gifts and certificates.
Details and forms are available at:
www.ups.ufl.edu/awards/superior.him, or call
Employ ee Relations and Development at (352) 392-

* Dr. Co adonga Arias, a
postdoctoral scientist ,w working
with Dr. Jackie Bums. received
special recognition, "Premio
Extraordinario de Doctorado",
from the University of Valencia
in Spain. The honor was given
to Dr. Arias for outstanding
work on her doctoral thesis
"Detection and Typing of Vibrio
vulrmtnicu With Molecular
Dr. Arias was also awarded
a one-year grant from the NATO
Science Fellowship Program of
Spain to work with Dr. Bums on
the project "Molecular Charac-
terization of the Thermostable
Pectinesterase Associated With
Loss of Qualit in Pasteurized
Orange Juice "

* Dr. Mickey Parish was
received the 1999 Research and
Development Award *rom the
Institute of Food Technologists
(IFT) Citrus Products Di% vision
The IFT is an international
society with 28,000 members
from food science, food
technology and related profes-
Dr. Parish was recognized
for his achievements and work
in the microhiolog: of citrus
products. His program has
provided leadership in the citrus
industry in the areas of' patho-
gen survival in citrus product..
high pressure processing (non-
thermal method of reducing
microbial gross th in juice I. and
the spoilage ot citrus product-.

Craig Davis. FDOC. has been promoted to As.sociate Research
Scientist. effective Noember 1. announced Dr Mohamed Ismail.
FDOC Scientific Research Director Fresh Fruit Craig prenousli
operated the facilities in the Electron Microscopy Laborator, w ith
DiAnn Achor. He m ill continue to \ork w ith Dr Steven Pa. on
food safety and microbiology and also pro% ide expert assistance to
our taff of pathologists and phys biologists.

1C From The
'S Mail Room L

Recycle Day -
Friday, November 19
Please have all recyclable mate-
rial to the Maintenance Shop by
9:30 am paper, glossy and alu-
minum. Help recycle!

We Will Mail Out
Reprint Requests
We \k ill send out reprint requests
that you receive just attach an
address to the reprint and bring it
to the Mailroom.

Remo e Labels From
Styrofoam Boxes
When returning recyclable styrofoam boxes to the
manufacturer, please remove all other labels. The Post
Office will not accept boxes with UPS and other carrier


From Personnel

Nov. 11 Veterans Day
Nov. 25-26 Thanksgih ing
Time Cards Due
Friday. Nov. 5
Thursday, Nov. 18

Training and Development
Courses from
University Personnel Services

November 2, 1999
The Superv.or 's Rolc Ei 'ertihin You
Always Wanted to Know About Being a
10:00 am 1:00 pm, BHG Room 4

Conflict fanaitement
2:00 5:00 pm, BHG Room 4

Welcome to .....
Phillip Allende (OPS, Nielsen)
David Castrilli (OPS, Nielsen)
Julia Beretta (OPS, Derrick)
Arthur Swan (OPS. Albrigo)
Jianming Lin (Postdoc, Rouseff)
Farewell to......
Michelle Thompson (OPS, Childers)
David Hires (OPS. Albrigo)
Richard Maness (OPS. Albrigo)
Noel Vasquez (OPS. Alva)
Daqing Sun (Res. Sci., Cancalon)
David Shapiro (Assistant In, McCoy)
JingJing Yang (OPS, Rousefl)
Dr. Moshe Bar-Joseph (Visiting Scientist)

Citrus Leaves
Would you like to be in Citrus
Leaves? We welcome your
contributions and suggestions.
Editor: Public Relations,
Monica Lewandowski;
Production and Distribution:
Word Processing, Barbara
Thompson, Supervisor;
Customer Service, Kathy
Witherington, Supervisor,
Nancy Burke & Connie Noxel.

New Grandparents

Grandparents Dave and Connie Noxel. birth of grandson Drew Michael
Johnson on Oct. 25; parents are daughter Tara and husband Mike Johnson.

Grandfather Rommel Rubio, birth of gradson on 1019 99; father is Rommel
Rubio, Jr.

Manuscripts Submitted to the Publications Committee In October
W. J. Kender, U. Iartmond, J. K. Burns. and R. Yuan. Citrus Fruit Abscission Induced by \lcth\ I Jasmonate. Journal ofthe American
So iten for Horticultural .Scinc.s
L. IR Parsons and John Jackson. The Florida Automated Weather Network and Minimum Temperature Estimation for Frost
Protection. Citrus Industry.
W. M. Miller and G. P. Drouillard. Multiple Feature Analysis for Machine Vision Grading of Florida Citrus. Applied Engineer-
ing in Agriculture.
L. W. Timmer, H. M. Darhower. S.E. Zitko, T.L. Peever, A. M. IbAiiez and P. M. Bushong. Environmental Factors Affecting
the Severity of Alternaria Brown Spot of Citrus and Their Use in Timing Fungicide Applications. Applied Engineering in Agricul-
S. H. Futch and D. P. H. Tucker. Identification of Nutritional Deficiencies of Citrus. Citrus Industry.
M. Salyani, L. W. Timmer, C. W. McCoy and R. C. Littell. Petroleum Spray Oils in Florida Citrus Application. Proc ofthe Int.
Conf on Sprai Oils Beyond 2000.
J. P. Michaud. Development and Reproduction of Lad beelles on the Citrus Aphids Aphis spiraecola Patch and Toxoptera
citricida (Kirkaldy). Biiologicial Control.
D. I. Shapiro, C. W. McCoy, A. Fares, T. Obreza. and H. Dou. Effects of Soil Typc on Virulence and Persistence of
Entomopathogenic Nematodes in Relation to Control of Diaprepes abbreviatus. Environmental Entomology.
David I. Shapiro. Edwin E. Lewis, Sivapatham Paramasiiam. and Clayton W. McCoy. Nitrogen Partitioning in
Heterorhabditis bacteriophora Infected Hosts, and the Effects of Nitrogen on Attraction/Repulsion. Journal of Invertebrate
C, C. Childers and D. S. Achor. The Eriophyoid Mite Complex on Florida Citrus (Acari: Eriophyidae). Proceedings of the
Florida State Horticultural Society.
C. C. Childers. Flower Thrips: Franklintella bispinosa (Morgani. F. kelliae Sakimnura (Thysanoptera: Thripidae) and Postbloom
Fruit Drop Disease Are Economic Pests on Florida Citrus. Proceedings ofthe Florida State Horticultural Society.
Kenneth Marsh, Pedro Gonzalez and Ed Echeverria. PPi Formation by Reversal of the Tonoplast Bound V-PPiase from
'Valencia' Orange Juice Sac Cells. Journal of the American Society for Horticultural Science.
Megh Singh and Shiv D. Sharma. Bio-efficacN Enhancement of Pesticides with Adjuvants. Pr'ceLt'dings of International
mp stium on Citriculture, Nagpur, India.
S. H. Futch and M. Singh. Economical Approach to Analysis of Weed Control Data. Proceedings of the Florida State Horticul-
tural Society.


Friday Saturday

November 1999

Conflict -1 pm

Driving 11 am

7 8 9 10 11 12 13
Dr. Ed Stover. Supervisor s Veteran's Day
IRREC Mtng Holiday
10:45 am 8 30 am

14 15 16 17 18 19 20
Seminar: Dr. J Faculty Mtng,
ManThey 10:45 8.30 am
Ming 1 pm

21 22 23 24 25 26 27
Seminar, Dr. Thanksgiving Thanksgiving
Mickey Holiday Holiday
Parish, 10:45

Seminar, Dr.
Richard Lee,


Seminar: Mike Armstrong "Computing at
CREC 105" BHG Rm 1, 11:00 am Noon

November 1999



Tuesday Wednesday


2- In-Service Training-Fac. & Sup'v,
Rm 4,
10 am -1 pm -"The Supervisor's
Role: Everything You Always
Wanted to Know"
2 pm 6 pm-"Confllct
5- Seminar: Defensive Driving-Carol
Lehtola. BHG Rm 1, 11:00 am -
9- Seminar: Dr. Ed Stover "Preharvest
Factor Affecting Quality of Citrus."
BHG Rm 1, 10:45 am Noon.
10- Supervisors' Meeting-Dr.
Browning. BHG Conf. Rm, 8:30
am 10:00 am.
16- Seminar: Dr. John Manthey "Anti
Inflammatory Properties of Citrus
Flavonoids." BHG Rm 1, 10:45 am -
16- Florida DOC-Citrus Comm. Public
Mtg -Dr. Ismail. BHG Rm 1, 1 pm 5
18- Faculty Mtg.-Or. Browning, BHG
Rm 4,8:30 am 10:30 am.
23- Seminar Dr. Mickey Parish
"Development of Federal Science
Policy Related to the Citrus Industry."
BHG Rm 1, 10:45 am Noon
30- Seminar: Dr. Richard Lee "EcPort:
A New UF Internet Service." BHG
Rm 1, 10 45 am Noon.

3- Seminar: MiKe Armstrong
"Computing at CREC 105. BHG
Rm 1, 11:00 am Noon.





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