Historic note

Group Title: AREC-H research report - Agricultural Research and Education Center-Homestead ; SB-83-1
Title: An IFAS computerized information delivery system for pest control and crop production for Florida fresh market tomatoes
Full Citation
Permanent Link: http://ufdc.ufl.edu/UF00067848/00001
 Material Information
Title: An IFAS computerized information delivery system for pest control and crop production for Florida fresh market tomatoes
Series Title: Homestead AREC research report
Physical Description: 13 leaves : ; 28 cm.
Language: English
Creator: Pohronezny, Ken, 1946-
Viola, Jeanette
Agricultural Research and Education Center, Homestead
Publisher: University of Florida, Agricultural Research and Education Center
Place of Publication: Homestead Fla
Publication Date: 1983
Subject: Tomatoes -- Data processing -- Florida   ( lcsh )
Tomatoes -- Diseases and pests -- Control -- Data processing -- Florida   ( lcsh )
Information storage and retrieval systems -- Agriculture   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
Statement of Responsibility: Ken Pohronezny and Jeanette Viola.
General Note: "9 March 1983."
 Record Information
Bibliographic ID: UF00067848
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 72803946

Table of Contents
    Historic note
        Historic note
        Page 1
        Page 2
        Page 3
        Page 4
        Page 5
        Page 6
        Page 7
        Page 8
        Page 9
        Page 10
        Page 11
        Page 12
        Page 13
Full Text


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source

site maintained by the Florida
Cooperative Extension Service.

Copyright 2005, Board of Trustees, University
of Florida

/00 '


Homestead AREC Research Report SB83-1 MAY 27 1983 9 March 1983

An IFAS Computerized Information B! 4fr iylore
Pest Control and Crop Production for Florida Fresh--ar e tomatoes
Ken Pohroneznyl and Jeanette Viola2
University of Florida, Department of Plant Pathology
Agricultural Research and Education Center
Homestead, Florida 33031
In recent years university extension specialists have realized
that the "computer age" has prompted a dramatic shift in our thinking
about modes of information delivery. This information science
revolution has come at a time of increasing manpower constraints and
transportation costs, and tightening institutional budgets.
In response to this situation, Drs. Freddie Johnson and Jerry
Stimac and Mr. Howard Beck, of the Department'of Entomology and
Nematology, University of Florida, Gainesville, wrote a successful
proposal to the Kellogg Foundation to fund the development of a
pilot "Florida Agricultural Information Retrival System" (FAIR).
Three crops were targeted for initial program development: soybeans,
tomatoes, and citrus. The soybean database is complete and has been
through one large test with excellent results. The tomato database
has been in the development stage for about one year, and work is
now beginning on the citrus database.
The tomato database will serve as an example of the computerized
information delivery system in this paper.

Software and Hardware
The tomato section objectives center on development of an
extension database for pest control and crop production. The end
product is to serve as a pragmatic guide for diagnosis, consultation,
planning, .and management.
The database is menu-driven and friendly enough to overcome most
of the reluctance associated with first contacts with the computer.
Some of the specific topics to be included in the tomato database
are shown in Table 1.

The PASCAL database management software package is totally the
design of the project systems analyst. It is currently unavailable


1Assistant Professor (Pest Management)
2Editorial Assistant

to any outside agencies or individuals, pending resolution of copy-
right questions.

The database management package represents a significant advance-
ment in the systematic storage of large volumes of textual data. Most
of the database entry is being done by paraprofessional editorial
assistants. Persons with particular editorial aptitudes can learn
the system sufficiently well in two days of intensive training to begin
database entry. Initial training with the data entry program on a
one-to-one personal basis seems more successful than written, auto-
tutorial materials alone.

The hardware used for the database entry consists of the following:

1. Apple III with 128K RAM
2. Monitor
3. Floppy Disk Drive
Information in final form is transferred to a 5 megabyte removable
Winchester hard disk unit.

In the future, the database will be operable on the Apple III,
Dec PC350, and, possibly, the Apple II.

The Program Audience and the Source of the Database

We envision that this information will be readily accessed
electronically by county agents and IFAS faculty and staff. It should
provide for efficient communication of new facts from state special--
ists to county agents, with edit capabilities providing for rapid
information update. Perhaps others will gain access to the database
in the future.

The bulk of the database is being entered from already published
material. However, much of this written information requires extensive
editing in order to fit the menu-driven format.

The impetus from this effort has also resulted in the publication
of previously unpublished information, much of it "stored in the
heads" of experts throughout the state.

The tomato database development has presented some unique problems
in decentralization of the database entry. While the soybeans and
citrus expertise is centralized in Gainesville and Lake Alfred,
respectively, tomato production and the IFAS support personnel are
scattered throughout the state, particularly in the southern half of
the peninsula. The tomato effort,in essence, has become a test.of
the feasibility of decentralized program development, and, to date,
has been highly successful. Most recently, the effort has been
enhanced by the availability of electronic mail between local centers
and Gainesville.

A Guided Tour of the tomato FAIR Program

The best way to evaluate the potential use of the program
is to sit down at a computer with appropriate software and work
your way through it. A problem-solving example follows to aid
first-time FAIR users. In lieu of the actual program, the accom-
panying figures are exact reproductions of the frames.displayed
on the computer monitor, and give a reasonable representation of
how the data look. However, this cannot substitute for "hands-on"
computer experience.

To illustrate the type of information available in the FAIR
tomato database, we have selected a case of need for general informa-
tion on early blight disease of tomato. If you access the program
on your Apple III or other terminal, you would see the monitor frame.
illustrated in Fig. 1. Selection of "option B" (Fig. 1) brings you a
menu of topics to be included in the tomato database (Fig. 2). If
you selected "option C" you will then see a list of diseases often
encountered in Florida tomato fields (Fig. 3) (note-additional virus
and abiotic diseases are contained in the program but are not shown
in Fig. 3). At this point, you select "option F" to get specific
information on early blight.

* The menu-driven format continues as you see a listing of sub-
topics relevant to early blight disease (Fig. 4). You may choose
to see some or all of these areas. For example, if you know very
little about this problem, you can select "option 1" (introduction),
and you will see the text in Fig. 5. If you wish to continue in the
order of topics listed in the early blight menu, you can select
"option 1" -and the computer displays in Fig. 6-7 will give you a
fairly complete description of disease symptoms and important clues
to proper field diagnosis. At the bottom of Fig. 7 you again see a
list of options to help you maneuver easily through the program.
If at this point you feel confident in the diagnosis and you want
immediate information about controlling the problem, you can select
"option 2" (Fig. 7), and you will see the current extension service
recommendations, as illustrated in Fig. 8 and Fig. 9.

As you may have noticed, at most any point in the program, you
can select an option which will enable you to retrace your steps.
For instance, if you select "option 3" in Fig. 9, you will be
returned to the main early blight menu (Fig. 1). At that point you
can choose to see other early blight subtopics, or return to the main
disease menu to consider other pathogen problems.


Table 1. Outline of Some Topics to be Included in Tomato Database

A. The Florida Tomato Industry

B. Botany of the Modern Tomato Plant

C. Variety Selection*

D. Land Selection

E. Mulching

F. Nutrient Management

G. Soil Moisture Management

H. Diseases and Disease Control*

I. Insect Pests and Insect Control*

J. Nematode Pests and Nematode Control

K. Weed Problems and Weed Control*

L. Post-Harvest Operations

Section complete or, nearly so, as of 9 March 1983.


Fig. 1

Program Format Using a Tomato Disease (Early Blight) as an Example

A. Soybeans
B. Tomatoes
C. Citrus
D. Control Guides/Production Handbooks
E. Pesticide Information
F. How to Use this System
G. Credit and Acknowledgements


Fig. 2


a Varieties
b Insects
c Diseases
d Weeds
e Nematodes
f Integrated Pest Management
(Including Field Scouting)
g Postharvest Operations


Press SPACE BAR for Main Index.


Fig. 3


Bacterial and Funsal


- Bacterial speck
- Bacterial spot
- Botrytis rot
- Buckeye rot

- Damping-off
- Early blight
- Fusarium wilt

k Phoma rot
1 Stem rot
m Soil rot
n Southern
bacterial wilt
o Southern blight
p Target spot
q Verticillium

h Gray leafspot
i Late blight
j Leaf mold


Type a letter for more information on a disease (biology, control).

Type 1 for Tomato Diseases Index.





Fig. 4


CAUSAL AGENT The disease is caused
by the fungus, Alternaria solani.

1 Introduction

2 Symptoms and Identification

3 Biology of the Early Blight
Fungus and Conditions Favorable
for Disease

4 How the Disease may be Introduced

5 Control Recommendations

Type a number to see a topic

Press SPACE BAR for
Other Tomato Diseases


Fig. 5


Early blight is caused by the fungus
Alternaria solani. The disease has histori-
cally been a major problem in Florida tomatoes.
However, during recent years extensive field
monitoring by scouts has not indicated wide-
spread and destructive early blight outbreaks.
The disease was a significant factor in the un-
usually warm 1981-82.growing season.

The disease can cause yield loss in potatoes
and all varieties of tomato. It also attacks
eggplant and wild plants related to the tomato.

Type 1 for Symptoms and Identification

2 for Early Blight Main Index.


Fig. 6


Leaf symptoms begin as pin-point size
brown to black spots, usually, on the older
leaves. These lesions expand in size up to
one-half inch across; remain brown, and may
or may not be surrounded by a yellow halo.
Concentric rings are usually seen within
the enlarged spots, and represent the most
distinguishing symptoms of the disease.
Similar spots may occur on stems, and, if
plant is in the seedling stage, the stem
can be girdled, often killing the plant.

Tomato fruit symptoms are usually
found associated with the stem end and


Type 1 for Early Blight Main Index.


Fig. 7


Fruit symptoms include a sunken,
greenish-brown, black spot with concen-
tric rings. On older fruit it causes dark,
leathery, sunken spots at the points of
attachments to the stems.

Type 1 for Previous Page,
2 for Control Recommendations
3 for Biology and Conditions
Favorable for Disease,
4 for Early Blight Main Index.


Fig. 8


Control of early blight is best achieved
by integrating several techniques. Cultural
controls reduce the amount of initial inoculum
(spores). Use crop rotation where possible,
and disease-free tomato plants. Destroy vol-
unteer tomatoes. Maintenance of host vigor
via adequate nutrient levels, especially
of nitrogen, is extremely important in
adequately protecting against early blight.


Type 1 for Early Blight Main Index.

S 4


Fig. 9


Begin a fungicide spray program.at
first sign of disease. Maintain spray
applications at 5 to 14 day intervals through-
out the growing season. Use the shorter
intervals if rainfall is frequent or where
history of early blight is severe, or when
temperatures from 78-85 degree F. prevail.

Most recently released Florida varieties
have some early blight tolerance in their

Type 1 for Previous Page,
2 for Recommended Fungicides,
3 for Early Blight Main Index.

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