Title: Vegetarian
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 Material Information
Title: Vegetarian
Series Title: Vegetarian
Physical Description: Serial
Creator: Horticultural Sciences Department, Institute of Food and Agricultural Sciences, University of Florida
Publisher: Horticultural Sciences Department, Institute of Food and Agricultural Sciences, University of Florida
Horticultural Sciences Department
Publication Date: December 1984
 Record Information
Bibliographic ID: UF00087399
Volume ID: VID00204
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.

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!'i!TITUTE OF FOO&tAND
AGCI3 CULTURAL SCIENCES
L.MIVERSITY OF FLORIDA


FLORIDA
COOPERATIVE
EXTENSION SERVICE


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VEGE TADIAN


A Vegetable Crops Extension Publication

Vcegeable Crops Department *1255 I1SPP GC-ini-\ illc. FL 32611l Telephone 392-2134


Vegetarian 84-12


December 10, 1984


Contents


I. NOTES OF INTEREST


Personnel
New Publications
Vegetable Crops Calendar


II. PESTICIDE UPDATE


A. Alachlor (Lasso) Registration
Potatoes and Aerial Application
B. New Terms and Conditions
Registration of Alachlor


Removed From

for Continued


III. COMMERCIAL VEGETABLES

A. Vegetable Crops In-Service Training

IV. VEGETABLE GARDENING


A. Inexpensive pH Estimator Strips
B. Application Intervals for Garden Pesticides A
Word of Caution


Note:

Anyone is free to use the information in this newsletter.
Whenever possible, please give credit to the authors.

The use of trade names in this publication i soley
the purpose of providing information and us-
necessarily constitute a recommendation of the product.


The Institute of Food and Agricultural Sciences is an Equal Employment Opportunity Affirmative Action Employer authorized to provide research,
educational information and other services only to individuals and institutions that function without regard to race, color, sex, or national origin.
COOPERATIVE EXTENSION WORK IN AGRICULTURE AND HOME ECONOMICS, STATE OF FLORIDA, IFAS. UNIVERSITY OF
FLORIDA. U S DEPARTMENT OF AGRICLJLTURE AND rOAR'rS OF COUNTY COMUMISSIONErS COnPERATING


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I. NOTES OF INTEREST

A. Personnel

1. Dr. Donald N. Maynard has requested that he be reassigned from
his position as Chairman of the Vegetable Crops Department to a
full-time professor in the department, effective December 3,
1984. Dr. Daniel J. Cantliffe is serving as Acting Department
Chairman.

2. Dr. Christine Chase will join the Vegetable Crops Department,
Position 93558, as a full time research/teaching faculty member
in the area of molecular genetics. She will start March 1, 1985.

B. New Publications

1. Staked Tomato Variety Trial Results Spring 1984, IMM 84-5 by P.
H. Everett and K. A. Armbrester is available from Immakalee AREC,
Rt. 1, Box 26, Immokalee, FL 33934.

2. Florida Cooperative Extension Service Circular 570, "Herbs in the
Florida Garden," has just been printed for the first time.
Distribution is through any county extension office in Florida.

3. Bob Dunn has announced that the Nematode Control Guide (NCG) is
now available on line through FAIRS. This will be the
official, most current IFAS recommendations and information about
managing nematode pests of plants. Bob says printed versions
will continue periodically, but will represent the current state
of the NCG on FAIRS. Changes might occur on the electronic data
base between printings, so a warning to that effect will appear
on publications.

4. Voluntiller The initial issue of a newsletter written for
Florida Master Gardeners has just been mailed (December, 1984).
It is bi-monthly, so the second issue (Jan-Feb) will go out in
February. Since it is an in-house newsletter directed toward the
communication needs of Florida master gardeners, the mailing list
will be restricted to this group. However, anyone working with
similar groups and who wants a copy to review should contact this
department.

5. Cir. 399-A, "Diagnosis and Control of Plant Diseases and
Nematodes in a Home Vegetable Garden," by Tom Kucharek and Bob
Dunn, has just been released. As usual, copies are available
from county extension offices, and IFAS publications, Bldg. 664,
University of Florida, Gainesville.

C. Vegetable Crops Calendar

Jan. 16, 1985. Florida Watermelon Institute at the Florida Farm
Bureau Auditorium, Gainesville, FL. 9:30 4:00.


Commercial vegetable inservice training for


Jan. 29-31, 1985.





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extension agents. Dade Co. Extension Office center, Homestead.

Feb. 6, 1985. Strawberry field day. 2-5 p.m. Dover AREC
(Hillsborough Co.) Dover, FL.

Feb. 3-6, 1985. ASHS (So. Region) annual conference. Broadwater
Beach and Hilton Hotels, Biloxi, Miss.

March 9, 1985. State teachers of vocational agriculture training
session on FFA vegetable judging and identification contest,
Gainesville.

April 19, 1985. State FFA vegetable judging and identification
contest. Gainesville.

May 29-31, 1985. Home horticulture extension agents in-service
training, Camp Ocala.



II. PESTICIDE UPDATE

A. Alachlor (Lasso) Registration Removed From Potatoes and Aerial
Application.

Alachlor (Lasso) is no longer labeled for use on potatoes. The
aerial application of Lasso has also been cancelled from the label.
Please make a note of these changes on the Weed Control G u i d e .
Explanation of the cancellations can be found in the f o 1 1 o w i n g
section.

B. New Terms and Conditions for Continued Registration of Alachlor.

The U.S. Environmental Protection Agency (EPA) has placed
additional terms and conditions on the continued registration of
alachlor after determining that current use may result in risks to
public health.
Alachlor (Lasso) by volume, is the largest herbicide used in the
U.S. In summary of science findings, it was reported that alachlor is
not acutely toxic by the oral, dermal, and inhalation routes of
exposure and its uses are not expected to adversely affect avian and
mammalian wildlife. Chronic dietary exposures in 18 month and two
year studies using technical alachlor on rats and mice have shown dose
related oncogenic effects at 15 mg/kg/day and larger rates. Due to
these effects the EPA is requiring Monsanto to take a number of
actions. The EPA will also subject alachlor to its Special Review
process. The Special Review is a formal public process in which the
EPA assesses all risks and benefits of a pesticide before reaching a
final regulatory decision regarding its use.
As a result of these findings and discussions between Monsanto
and EPA, Monsanto is required to provide all potential applicators
with the opportunity to attend a special training program which
outlines the safegaurds to be observed in handling this product.








New label requirements for alachlor products include:
--a tumor hazard warning statement that alachlor products cause
tumors in laboratory animals;
--a water contamination warning statement that alachlor has been
identified in limited ground-water sampling, possibly will leach
into ground water, and may reach surface waters as a result of
runoff;
--a protective clothing requirement that goggles, rubber gloves and
boots, long trousers, and long-sleeved shirts be worn during mixing,
loading operations and during cleaning and repair;
--cancellation of aerial application;
--handling instructions to reduce applicator exposure.
Monsanto has also voluntarily removed the use of alachlor on
potatoes.
Alachlor is registered for use as a reemergence herbicide on corn
(all types), soybeans, peanuts, dry beans, lima beans, red kidney
beans, mungbeans, grain sorghum, sunflower, peas, cotton and certain
ornamentals.
James V. Parochetti, USDA Extension Service Program Leader --
Pesticides, Applicator Training and Weed Science has provided to me
the following information:
1. Environmental Protection Agency Press Release, Tuesday,
November 20, 1984, "EPA Addresses Risks Posed by Pesticide
Alachlor."
2. "Alachlor Registration Standard," November 20, 1984.
3. "Chemical Information FAct Sheet for Alachlor," November 20,
1984.
County Agents needing a copy of these three documents may call me
or the IFAS Pesticide Information Office.
Monsanto representatives have also contacted me on this issue and
they will start the special training sessions in Florida as soon as EPA
has determined if the training program provisions are adequate.
(Stall Veg. 12-84)



III. COMMERCIAL VEGETABLES

A. Vegetable Crops In-Service Training (Commercial)

The vegetable crops in-service training for county extension
faculty will be held January 29-31, 1985 in Homestead. This years
emphasis will be on Integrated Pest Management. Two half day tours
will be held to view the vegetable production on the unique rock and
marl soils in the county. Hands on training in large plot sprayers and
scouting procedures will be included in the program.
Travel authorizations will be sent to those of you who are
already registered for the program. This is the busy season in
Homestead. Make your motel reservations as soon as possible.
A preliminary program for the training follows:








Preliminary program
Vegetable Crops In-Service Training (Commercial)

January 28 Travel Homestead
January 29 8:00 a.m. Registration Dade Co. Agricultural Ext.
Auditorium, 18710 SW 288 St., Homestead
8:15 Introduction to training.
8:30-12:00 Tour
1:30- 5:00 Harvesting and handling techniques to control
postharvest losses due to pests.

Pesticide application and sprayer calibrations.

Use of backpack sprayers for plot demonstration

Nozzles and nozzle arrangement for optimum
coverage

Hands on use of backpack sprayers.

Experience in calibration of field sprayer.

Demonstration in nozzle coverages.

7:00 Bar B.Q. and Get together.


January 30 -


8:00-12:00 Identifciation techniques of major insects and
diseases of tomatoes, snap beans and
strawberries.

-Integrated Pest Management Principles
Determination of number of samples
Determination of sample size
Establishment of action thresholds
Interactions of beneficial/pest problems

IPM and the Scouting business

Sampling and threshold of insect pests of
Crucifers.

Threshold establishment and defoliation
experiments.

Panel discussion of recommended pesticides in
an IPM approach.

12:00-1:30 Chili Lunch at Tropical Research and Education
Center Homestead.

1:30-5:00 Tour

Tour includes individual scouting experience in








Planning for area and multi-county meetings and
demonstrations.

(Stall Veg. 12-84)



IV. VEGETABLE GARDENING

A. Inexpensive pH Estimator Strips

During the 1984 annual meeting of the ASHS in Vancouver, B.C., a
poster presentation reported on a study to determine the accuracy and
reliability of paper pH strips. The poster was presented by Hipp,
Giordano, and Connor of Texas A&M, and reported in California
Extension's Help Notes.
Soil pH is an important factor in proper growth of plants,
including vegetables. Gardeners are advised to get their garden soil
tested every two or three years so that proper adjustments may be made
to increase the productivity of the soil. Testing for pH is best
conducted by the University of Florida's Extension Service for a very
minimal charge. However, several devices generally referred to as pH
meters are offered for sale to home gardeners for easy do-it-yourself
checking.
The pH determination devices are usually in one of three forms:
(a) soil testing kits which involves the use of chemicals reagents and
colormetric charts, (b) battery operated probes for inserting into the
soil and reading the pH from a dial, and (c) paper strips which react
to the pH of the soil.
The soil test kits have been around a long time and offer fairly
reliable results if the procedure is conducted properly. However,
there is room for human error throughout the process, the chemicals get
old, and most gardeners are reluctant to use them.
The electrical battery operated devices are simple to use and
many give reasonable accurate determinations for "ball-park"
calculations (.5 pH unit readings).
The third method, involving paper strips costing about six cents
each, was evaluated at Texas A&M, as already mentioned. In the study,
thirteen different media mixes were placed in pots and irrigated for 30
days before pH was measured. The colorpHast paper pH strips, which
measure pH between 4.0 and 7.0, were dipped in a paste of each of the
mixes for intervals of 1, 3, 4, and 6 minutes. Estimates of pH were
read to the nearest 0.5 pH unit. Samples of each media mix were also
tested with the pH electrode method most often used in laboratory
testing.
The investigators concluded that the pH strips are acceptable if
high accuracy is not required, and that the strips have a sensitivity
of about 0.3 pH units. If using the strips, best results will be
obtained by immersing the strips in the media paste for a minimum of
six minutes.
(Stephens Veg. 84-12)








B. Application intervals for garden pesticides a word of caution.

IFAS plant pathologist Dr. Gary Simone has issued a word of caution for
those of us who direct home gardeners in the use of approved fungi-
cides. Through the years it has been customary for extension service
publications to advise growers and gardeners to "apply fungicides on a
preventive basis at weekly intervals", and to "reduce the interval
under severe infection conditions."
According to Gary, it is illegal for a grower (commercial or home
gardener) to reduce the interval below that which is on the label.
Therefore, for example, if fungicide a has a label that says "apply
every 7 days on beans for rust control." fungicide a may not be
applied legally at an interval of less than 7 days.
Of course, some fungicides have a label application interval
shorter than 7 days for some diseases on some vegetables (example:
chlorothalanil at 3-5 days for early blight on celery), therefore,
there are instances where the grower can legally shorten the spray
interval where the label allows, we must try to include precautionary
statements where possible, such as "read and follow the label for
specific usages, or "shorter intervals not allowed in all cases."
(Stephens Veg. 84-12)



Prepared by Extension Vegetable Crops Specialists

Dr. D. J. Cantliffe Kathleen Delate
Acting Chairman Visiting Ext. Agent I

Dr. G. J. Hochmuth Dr. S. M. Olson
Assistant Professor Assistant Professor

Dr. M. Sherman / Dr. W. M. Stall
Assistant Professor A Associate Professor


/ J. M./Stephens
Associate Professor




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