Group Title: Berry/vegetable times.
Title: Berry/vegetable times. November 2006.
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 Material Information
Title: Berry/vegetable times. November 2006.
Uniform Title: Berry/vegetable times.
Physical Description: Newspaper
Creator: Gulf Coast Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida
Publisher: Gulf Coast Research and Education Center, University of Florida
Gulf Coast Research and Education Center
Publication Date: November 2006
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Bibliographic ID: UF00087388
Volume ID: VID00046
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.


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Berry/Vegetable Times

IFAS Extension


Don't miss the first Florida Ag Expo to be held on
December 8-9 at the Gulf Coast Research & Education Center
in Wimauma. The idea for the Expo was first proposed by
growers in West Central Florida to provide a smorgasbord or
one-stop-shopping event for growers. Presented by Florida
Grower magazine, the University of Florida, the Florida Fruit
and Vegetable Association, Florida Tomato Committee and
Florida Strawberry Growers Association, this 2-day event will
not only feature presentations but running equipment
showcases, variety trials, field demonstrations and an
expanded trade show. Over 62 vendors will be at the show.
This year's educational sessions will focus on tomatoes,
peppers and strawberries, but many of the displays and
equipment demonstrations will be applicable to other
vegetables. An agenda for the educational sessions is on Page
2. Pesticide license CEUs and CCA credits will be given at
the educational session. Registration is free and can be done
online at Please pre-register
so they will have a headcount for free breakfast and lunch on
Alicia Whidden, Hillsborough County
Phyllis Gilreath, Manatee County

A monthly newsletter of the University of
Florida IFAS
Florida Cooperative Extension Service,
Hillsborough County
5339 CR 579, Seffer, FL 33584
(813)744-5519 SC 541-5772
Mary C 1 1.ii. I Director

Wimauma, FL 33598
(813)634-0000 SC514-6890
Christine Cooley, Layout and Design
Craig K. Chandler, Co-Editor
Jack Rechcigl, Center Director

From Your Agent...
Pesticide Spray Recordkeeping and
Central Posting Records

This month pesticide license
holders should have received a packet of
information from the Dept. of Agriculture
and Consumer Service. The information
included the 2006 Pesticide Applicator

(Continued on page 2)

IFAS is an Equal Employment Opportunity Affirmative Action Employer authored to provide research, educational information and other services only to individuals and institutions that
function without regard to race, color, sex, age, handicap, or national origin U S Department ofAgnculture, Cooperative Extension Service, University of Flonda, IFAS, Florida A & M
Umnversity Cooperative Extension Program, and Boards of the County Commissioners Cooperating

November 2006

Berry/Vegetable Times

Florida Ag Expo Presentations

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Register online at Or call 407-539-6552 for more information.
Reserve your spot for this first-ever event

(Continuedfrom page 1)
News, a pamphlet on pesticide recordkeeping
and a sample form for pesticide
recordkeeping. The pamphlet explains what
information you need to keep for your
pesticide records and that you must retain the
records for 2 years. This sample form is fine
for spray recordkeeping but must be modified
if you will be using it for posting your spray
activities on your Central Posting location.
To be in compliance for Worker Protection
Standards the following items must be listed
on the Central Posting location for pesticide
spray activity for each farm.
?? Date and time you finished spraying
?? Treated area- use designation workers will
know, such as Block 1, 2, etc.
?? Pesticide Brand Name for every product

used in spraying
?? Active Ingredient of each product
?? EPA registration number for each pesticide
?? Restricted Entry Interval- in hours such as
0, 12, 24, etc. date and time REI expires
Be sure to leave your Central Posting
records up for at least 30 days after the REI has
expired. If you are spraying several chemicals
together in the tank and there are different
REIs the longest REI is the one to be used for
allowing workers back in the field.
Make sure you have the correct
information recorded for each type of pesticide

Alicia Whidden
Hillsborough County Extension Service
813-744-5519, ext.134

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November 2006



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Berry/Vegetable Times

Hillsborough County Approves
Agriculture Stewardship Program
Stephen Gran, Manager Agriculture Industry
Development Hillsborough County Economic
Development Department

In an effort to encourage economic
viability for the future of agriculture in our
community, Hillsborough County
Commissioners unanimously approved the
Agriculture Stewardship Program at their
September 7th regular meeting.
This voluntary program, proposed by
the Agriculture Industry Development
Program, recognizes the benefits and services
that agricultural land provides to the
community through monetary grants for
Any landowner that has current
Agriculture Use Classification (Greenbelt) as
determined by the Hillsborough County
Property Appraiser's Office is eligible to
participate in the program. The landowner
must first complete an application to
determine eligibility. Once eligibility is
the landowner enters into an Agriculture
Stewardship Agreement with Hillsborough
County, which prohibits the landowner from
converting to non-agricultural use for the
length of the 10-year contract. In return, the
landowner receives an annual Agriculture
Stewardship Grant for 10 years.
The amount of the Agriculture Stewardship
Grant is based on a formula that takes in
account the taxable value of Agriculture Use
Classified (Greenbelt) land and agriculture
production related structures on the farm.
With an annual impact of $1.4 billion,
agricultural lands not only provide important
economic benefits to the local community, but
also provide numerous other benefits,
including wildlife habitat, wetlands,
stormwater retention, aquifer recharge;
connects environmentally sensitive areas;
and serve as a buffer between urban and

undeveloped areas. However, historically the
cost of providing these benefits has been
borne by the farmers while the community
benefits. The Agriculture Stewardship
Program recognizes the benefits or services
that agricultural land provides to the
community and rewards the farmer for
providing them.
This new program will assist the
agriculture industry in remaining both
productive and profitable and will ensure that
the aesthetic and environmental benefits
provided by agricultural open space
will be maintained.
The sign-up period for this program is
from November 1st December 15th for the
2007 program year. For more information
regarding the Agriculture Stewardship
Program, please contact Stephen
Gran, Manager-Agriculture Industry
Development, at (813) 272-5506.

Addition to Switch label

Syngenta has included powdery mildew on the
Switch label. Now for strawberry disease control
Switch is labeled for anthracnose, botrytis and pow-
dery mildew.

Southern Blight in West Central
P. Gilreath, Manatee Co., A. Whidden, Hillsborough
Co., K. Pemezny, Belle Glade

Southern Blight (Sclerotium rolfsii)
has been more prevalent in West Central
Florida tomato fields this fall than in the past,
and has shown up not only on wet row ends as
is often the case, but also in drier areas of the
field and on older plants than we usually see
it. The culprit was likely the prolonged rain
earlier this season that some farms saw daily
for 2-3 weeks straight. This disease prefers
wet and warm (80-950F) conditions and like
(Continued on page 4)

November 2006

Berry/Vegetable Times

many diseases, is just waiting for the right host
and environmental conditions. The initial
symptom that most will notice is wilting of the
plant. Under moist conditions, white
mycelium develops on the stem (Figure 1) and
after a few days the sclerotia, mustard seed size
tan to reddish-brown over wintering structures,
may appear. The fungus also readily goes to
the fruit, causing a massive soft rot. Southern
blight has many hosts and other than removing
diseased plants, little can be done during the
season. Even removing plants is not
completely effective as often masses of
sclerotia are on the soil as well as on the plant
stem. What about next fall for those who are
going back with tomatoes on this same
ground? Rotation to corn, sorghum, other
grasses (including pasture) or resistant plants
can help as can eradicating weeds. This
pathogen also favors acidic soils but liming to
levels that are very effective results in soil too
alkaline for growth of many crops. Deep
plowing to bury plant residue may help.
Sclerotia do not survive as well when buried at
least 6 inches deep. Also, organic debris
remaining on the soil surface offers a food base
for this fungus. In smaller fields at first sign of
disease, another alternative mentioned in the
literature is using a propane torch for roguing,
aiming the flame at the soil surface and lower
10 inches of the stem. Growers should make
note of fields that are particularly affected this
season, and ensure good fumigation next fall.
If trying new alternatives, these fields would
be good choices for those alternatives with
higher levels of chloropicrin.
Southern Blight can also infect strawberry
plants. Years ago a field that was set early and
the temperature was very hot had a high
incidence of Southern Blight in the wetter parts
of the field. It has also been found in one field
this year that was not fumigated.

Figure 1. Mycelial growth on tomato stem.

Restricted Pesticide License Study
Books Now Available At Extension

Study books for state pesticide licenses are now
available for sale at the Hillsborough County
Extension office in Seffner. Please contact Mary
Beth Henry at 813-744-5519, ext. 103 to be sure
the books you need are in stock and for prices.

2006-07 Winter Weather Watch
Begins November 15, 2006
Chris Oswalt, Hillsborough and Polk Co. Extension

Why spend your precious time
chasing down the latest winter weather
forecasts on the Internet, television or other
sources. Let the "Winter Weather Watch"
work for you. Get accurate and up to date
freeze forecast information from a source
you can trust.
The Winter Weather Watch program
provides a toll-free number that subscribers
can call and get their local forecasts of
interest on a daily basis. This year we will be
using the same menu type phone forecast
system that allows you to get the information
you need without listening to all the forecast
(Continued on page 5)

November 2006

Berry/Vegetable Times

products at one time. We also provide 6-10 and
8-14 day outlooks, a weekly outlook from Fred
Crosby, citrus leaf freezing temperatures and
special weather narratives from Fred Crosby
during critical freeze events. In addition to the
forecasts you will also receive an updated
"Winter Weather Watch" manual.
The service is totally funded by
subscribers and has been provided to Florida
growers for over 40 years. The cost is $100.
So don't be left out in the cold signup today by
calling 863-519-8677 ext. 111 and ask Gail for
a registration form.

National Weather Service Predicts
El Nino Conditions
Chris Oswalt, Hillsborough and Polk Co. Extension

The National Weather Service El Nino outlook
update issued on October 5, 2006 indicated a
steady increase in sea surface temperatures in
the equatorial Pacific. The sea surface
temperature has exceeded the + 0.5 0 C
threshold necessary to be considered an El
Nino year/winter. There are 4 zones of interest
in the equatorial Pacific (Fig. 1) from which
these predictions are made.In all zones the sea
surface temperature has exceeded 0.50C with
zones 1+2 and 3 approaching 1.00C (Fig. 2).
The presence of El Nino should be considered
favorable for Florida in large part to the
stronger than normal Pacific jet stream that
will provide for a more zonal upper airflow
(west to east) over the peninsular. Implications
of this pattern generally result in a decrease in
hurricane activity. The recent hurricane
forecast update predicts fewer hurricanes
reflect the incorporation of this new
information. This also translates into an above
average winter rainfall pattern. The increases
in clouds associated with this rainfall will
result in a prediction for a cooler than average
winter. This is not an absolute prediction for a
freeze, but a reduction in overall average

winter air temperature. Other crop seasons
that have had similar sea surface
temperatures leading up to this winter were
1951-52, 1963-64, 1976-77 and 2002-03.
Minimum temperature records for Tampa,
Lakeland and Ft. Myers indicated the
following results on the number of nights
when temperatures dipped below 320F (table
1). Looking back on winters that are
considered El Nino, the rainfall patterns
indicate that above average rainfall started in
December and continued through March
(Tampa, Lakeland and Ft. Myers). Average
monthly air temperatures for these same
locations during the winter were lowest
during January and February compared to the
historical average.
(Continued on page 6)



1 ON
iONNifno 34 1+2

Nifio4 Niio3
los.- Nifio4* l0 I


120E 150E 150 IsOW 120w 90
Fig. 1. Map of El Nino zone along the equatorial

The use of trade names in this publication
is solely for the purpose ofproviding
specific information. It is not a guarantee
or warranty of the products names and does
not signify that they are approved to the
exclusion of others of suitable composition.
Use pesticides safely. Read andfollow
directions on the manufacturer's label

November 2006

Berry/Vegetable Times

SST Anomalies



2005 2006

-- I


2005 :0 ir.
Fig. 2. Degrees Celsius from average of sea surface
temperature for the equatorial Pacific.

Berry specialist from Canada to
spend 2006-07 season at GCREC
Craig Chandler

Dr. Adam Dale, a leading strawberry
and raspberry researcher for over 20 years, is
on sabbatical leave from the University of
Guelph in Ontario where he is a professor of
Dr. Adam Dale, a leading strawberry

horticulture. Adam was born and raised in
England and obtained B.Sc. and Ph.D. degrees
in Botany from the University of Sheffield. He
then worked for eight years at the Scottish

Crop Research Institute, breeding raspberries
and black currants with the renowned plant
breeder Dr. Derek Jennings. In 1983, Adam
became head of the berry program for the
Horticulture Research Institute of Ontario.
His research and development program is
based at the Simcoe Research Station, which
is about 80 miles southwest of Toronto. Dr.
Dale has released 11 strawberry cultivars
during his career. His 'Governor Simcoe'
was the standard fresh market strawberry
cultivar in Ontario for a number of years, and
currently his 'Sapphire' and 'Serenity'
releases are enjoying moderate success. A
major emphasis of Adam's strawberry
breeding program over the last six years has
been development of glyphosate resistant
strawberries (using traditional hybridization
and selection techniques) The matted row,
perennial cultural system is the dominant
method of growing strawberries in Canada
and the northern U.S. Weeds tend to be big
problem in this system, and glyphosate
resistant cultivars, if available, could be a
boon to northern latitude strawberry
production. In addition to his research and
development work on strawberries, Adam
coordinates a program for the Ontario Berry
Growers Association that produces high
quality foundation stock for Ontario
strawberry nurseries, including the nurseries
that supply transplants to Florida growers. As
for raspberries, Dr. Dale conducts cultural
management studies, emphasizing year round
production, and is a leading expert on the
greenhouse culture of this high value crop.
Because of the strawberry connection
between Ontario and Florida, Adam and I
have been cooperating on research and
development projects of mutual interest
almost since I started working at GCREC in
1987. Currently we are working together on
the development of day neutral cultivars that
will have high early season yields in west
central Florida, and also be adapted to
(Continued on page 7)

November 2006

Berry/Vegetable Times

commercial production in Ontario.
Adam is living in the Brandon-
Riverview area with his wife, Diana, who is a
special education teacher in the primary
grades. The Dales have three grown children.
Adam is an active member of Rotary
International, and is a certified soccer referee
in Ontario.

Insecticides for Early Season
Armyworms in Strawberries
Jim Price and Curtis Nagle

Armyworms are particularly important
pests during the early strawberry season and
their episodes usually require insecticides for
remediation. Fortunately there are several
good insecticides that are practical under the
common strawberry culture of Florida, but
their most effective use requires careful
One insecticide, relatively new to
strawberries, is methoxyfenozide formulated
as Intrepid' This insecticide can be used up
to an ample five times per season, but the
label specifies that the applications be made
only to young crops and small plants in the
early season. The rotational crop restrictions
are a fairly accommodating 7 days for crops
not on the product label and no restrictions for
those that do appear on the label.
Methoxyfenozide is very compatible with the
use of Phytoseiulus persimilis predatory
Formulations of Bacillus thuringiensis
(B.t.) for armyworms are effective, are very
compatible with strawberry culture including
the use of P. persimilis predators, and do not
restrict numbers of applications. B.t. should
be applied to armyworms when they are
Spinosad formulated as SpinTor' may
be applied up to five times per season. This
product is effective for armyworms, but also
is a very effective for thrips. Growers who

anticipate thrips problems in the late winter
and early spring should consider withholding
some uses of spinosad on armyworms in favor
of thrips later. Spinosad should not be applied
to fields where P. persimilis predators have
been released, but its use up to 1 week of
predator release is acceptable.
Methomyl formulated as Lannate is
one of the most widely used insecticides for
armyworms. It is quick acting and effective
and up to 10 doses can be used. P. persimilis
predators should not be released within 4
weeks of the last use of methomyl. Methomyl
is very harsh on naturally occurring beneficial
parasites and predators of pest insects.
Two pyrethroids, bifenthrin
formulated as Brigade and fenpropathrin
formulated as Danitol, are available for
armyworm control. These products are
effective but numbers of applications are
restricted. Pyrethroids also are very harsh on
naturally occurring beneficial parasites and
predators of pest insects and P. persimilis
should not be released within 2 months of the
use of a pyrethroid.
Other products are available but are
not widely used in Florida strawberry
production. Each of the products mentioned,
with the exceptions of the two pyrethroids, are
from different mode of action classes (http//
MoAv5 1.doc). To reduce the chances for
insecticide resistance to develop in armyworm
populations, growers should apply products of
an identical mode of action for no longer than
one life cycle of the armyworm (about 1
month) before rotating to another mode of
action. All practical modes of action should
be used before returning to one previously
Weekly scouting of strawberry fields
and the informed use of insecticides should
protect Florida strawberries from the
armyworms that can cause serious losses.
Without this attention to armyworms, yields,
particularly the most valuable early and mid-
season yields, can be significantly reduced.

November 2006

Berry/Vegetable Times


This agriculture pesticide collection program is a safe way to dispose of cancelled,
suspended, and unusable pesticides at no cost to the farmer.



Tuesday, December 12, 2006

8:00 a.m. 2:00 p.m.
Location: EQ Florida
7202 East 8th Ave., Tampa, Florida
Enter at the Corner of 8th Ave. and Orient Rd.

Partners and Sponsors

Hillsborough County Agriculture Industry Development
Economic Development Department
Hillsborough County Solid Waste Management Department
Hillsborough County Cooperative Extension Service
Environmental Protection Commission of Hillsborough County
EQ Florida

Hilsboigh County
Bl.4ut 4 Ct jwl u

For more information contact:
Stephen Gran, Manager
Agriculture Industry Development
Economic Development Department
(813) 272-5506

November 2006

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