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 Block J
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FLAG IFAS PALMM



Vegetable field day
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Permanent Link: http://ufdc.ufl.edu/UF00054244/00001
 Material Information
Title: Vegetable field day
Series Title: Bradenton GCREC research report
Physical Description: v. : ill., maps ; 28 cm.
Language: English
Creator: University of Florida -- Institute of Food and Agricultural Sciences
Agricultural Research & Education Center (Bradenton, Fla.)
Gulf Coast Research and Education Center (Bradenton, Fla.)
Publisher: University of Florida.
Place of Publication: Gainesville Fla
Creation Date: 1973
Frequency: annual
regular
 Subjects
Subjects / Keywords: Plants, Cultivated -- Field experiments -- Periodicals -- Florida   ( lcsh )
Plants, Protection of -- Research -- Periodicals -- Florida   ( lcsh )
Vegetables -- Diseases and pests -- Periodicals -- Florida   ( lcsh )
Vegetables -- Varieties -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
serial   ( sobekcm )
 Notes
General Note: Description based on: 30th (1973); title from caption.
General Note: Latest issue consulted: 43rd (1999).
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Source Institution: Marston Science Library, George A. Smathers Libraries, University of Florida
Holding Location: Florida Agricultural Experiment Station, Florida Cooperative Extension Service, Florida Department of Agriculture and Consumer Services, and the Engineering and Industrial Experiment Station; Institute for Food and Agricultural Services (IFAS), University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62706005
lccn - 2005229077
System ID: UF00054244:00001

Table of Contents
    Agenda
        Page i
    Index
        Page ii
        Page iii
    Block A
        Page 1
        Page 2
        Page 3
        Page 4
        Page 5
        Page 6
        Page 7
        Page 8
    Block B
        Page 9
        Page 10
    Block C
        Page 11
        Page 12
        Page 13
        Page 14
        Page 15
    Block J
        Page 16
    Block I
        Page 17
    Block G
        Page 18
Full Text





Bradenton AREC Research Report GC73-4





J AGRICULTURAL RESEARCH & EDUCATION CENTER
5007 60th Street E.
Bradenton, Florida 33505

of


INSTITUTE


OF FOOD AND AGRICULTURAL SCIENCES

VEGETABLE FIELD DAY

Tuesday, May 22, 1973


9:00-9:45

9:45

9:50

9:55

10:15

10:30

10:45

11:00

11:15

11:25

11:40

11:55

12:10


Registration p

Introduction

Welcome 17 f

Vegetable Research Producer to t umer

Nutritional Studies and Trickle Irrigation

Weed Control & Other Horticultural Studies

Tomato Variety Development

Summary of Machine Harvest Studies on Tomatoes

Physiological Studies on Vegetable Crops

Disease Studies on Vegetables

Nematode Studies on Vegetables

Insect Research on Vegetables

Dutch Treat Box Lunches

Tour of Experimental Plots


James Montelaro

Will E. Waters

J. F. Kelly

C. M. Geraldson

D. S. Burgis

Pat Crill

P. H. Everett

S. S. Woltz

J. P. Jones

A. J. Overman

S. L. Poe


May 1973






I N DEX

Page
Bidck A

Land 1 (D. S. Burgis): Test of light weight vs. heavy paper as a mulch..... 1

Land 3 (West End)(A. A. Cook): Pepper Breeding lines grown at various
IFAS units......................... .. .......... ...... ........... 2

Land 3 (J. F. Price): Effects of certain cultural practices on insect
populations...... .................. ............... ......2.. ..... 2

Land 8 (J. P. Crill): Potted tomato variety evaluation..................... 3

Land 9 (J. P. Crill): Old variety tomato nursery........................... 4

Land 11 (East End)(C. M. Geraldson): Effect of selected nutrient gradient
variations on yield and quality of machine harvest type tomatoes...... 5

Land 11 (West End)(D. S. Burgis): Pruning Test on Determinate type tomatoes 5

Land 11 (West End)(D. S. Burgis): Test of herbicide-nematicide-soil
fungicide treatments............................................. 6

Land 12 (J. P. Crill and D. S, Burgis)..................................... 6
I. Fresh market tomato observation nursery........................... 6
II. Machine harvest fresh market replicated yield nursery............. 7
III. Indeterminate fresh market hand harvest replicated yield nursery.. 7
IV. Fresh market hand harvest replicated yield nursery................ 7
V. Canning tomato observation nursery................................ 8
VI. Canning tomato replicated yield nursery .....;................... 8

Block B

Entomological Research ( S. L. Poe and J. F. Price )........................ 9

Land 5 (West End)(S. L. Poe and J. P. Jones): Crop Mortality factors....... 9

Land 6 (West End)(S. L. Poe): Evaluation of chemical control of insects
on tomato.............................................................. 10

Land 6 (East End)(S. L. Poe): Evaluation of chemical control of insects
on pepper............................................................. 10

Block C

Land 6 (A. J. Overman and J. P. Jones): Cultural management for "old land"
tomato production................................ ................ ..... 11

Land 5 (A. J. Overman and J. P. Jones): Control of Fusarium wilt and
root-knot nematodes on tomato..................................... .. 12

Land 4 (A. J. Overman and J. P. Jones): Control of Verticillium wilt
and root-knot nematode on tomato..................................... 13








INDEX continuedd)
Page


Land 3 (A. J. Overman): Cover Crop rotations................. ,.. r,.. 14

Land 2 (J. P. Jones): Cbbtrol of foliage diseases of tomato............. 14

Land 1 (J. P. Jones and S. S. Woltz): Control of Fusarium wilt of tomato 15

BLOCK J

Land 9 (A. J. Overman): Nutgrass control................................ 16

Land 12 (J. P. Jones and J. P. Crill): Verticilliumwilt test........... 16


BLOCK I

Lands 3-4 (C. M. Geraldson): Manipulation of nutrient gradients......... 17


BLOCK G

Land 6 (A. J. Overman): Foliar sprays for root-knot control on tomato... 18


GREENHOUSE AREA

C. M. Geraldson: Development of the concepts of a non-variable root
environment..............................................*.......... 18










LAND 1 BLOCK A D. S. Burgis


Test of light weight versus heavy paper as a mulch.


Purpose: The test is designed to compare the heavy craft paper (having .25 mil
poly on each side) which is presently available with lighter craft paper having
1 layer of .25 mil on one side and light craft having no poly. Two fungicides,
either A or B, were incorporated into 1 side of the paper regardless of poly coat.
One set of covers regardless of weight or poly coat were superimposed on 3 herbi-
cide treatments: (1) no herbicide, (2) Planavin incorporated into the soil under
the paper, or (3) Vegiben incorporated into the paper.

Covers installed and plants set on March 6, 1973.

Variety Walter

Fertilizer 1500 Ib/A 18-0-25-2


Treatments:


Herb
Herb
Herb
Herb
Herb
Herb


Paper
Paper
Paper
Paper
Paper
Paper

Soil
Soil
Soil
Soil
Soil
Soil


Fung
Fung
Fung
Fung
Fung
Fung


Fung
Fung
Fung
Fung
Fung
Fung

Fung 1
Fung I
Fung 1
Fung I
Fung )
Fung I


Results: Preliminary evaluation indicates that a lighter paper with no coating
+ fungicide B may be good enough for 90 day crop.









-2-


LAND 1 BLOCK A (WEST END) Dr. A. A. Cook


Pepper Breeding Lines
Grown at Various IFAS Units

Purpose: To evaluate multiple disease resistant lines. Primary purpose is to
obtain types having desirable horticultural characters with resistance to 4
strains of virus presently limiting to pepper production in south Florida.

Dr. Cook will be present at the plots to report on present status of this project.

**** *****************

LAND 3 BLOCK A J. F. Price

Mr. Price is a graduate student in the Institute of Food and Agricultural Sciences,
Department of Entomology, University of Florida, Gainesville. He works with
Dr. S. L. Poe.

Effects of Certain Cultural Practices on Insect Populations

The purpose of this experiment is to determine the effects on insect populations
when tomatoes are grown using different cultural practices.

There are four different treatments in this experiment (A through D). Each of
the four treatments is replicated seven times. Plots are labeled according to
the diagram below:


Staked


Not Staked


Not
Mulched Mulched

A C
D B








-3-


LAND 8 BLOCK A J. P. Crill

Potted Tomato Variety Evaluation

Objective: To evaluate parental lines and F, hybrids for general adaptability
to potted plant culture.

Treatments: Crop was transplanted to the field on March 13 through black paper
mulch under which 1500 lbs/Acre of 18-0-25 fertilizer was placed.

These genetic stocks are the partial results of a crossing program to obtain
earliness and concentrated fruit set in standard type varieties. Most of the
potted plant lines are a result of crossing two plant introduction (P.I.) lines
with Walter, Florida MH-1 and a few other varieties. The standard type plants
with large fruit were selected for use in the fresh-market breeding program. The
short, compact plants were selected for use as ornamental potted plants.

Experiments with pot size, potting media and rate and type of fertilizer have
indicated some lines are very well adapted to pot culture as ornamental plants.
This experiment is a grow out test on a large scale to evaluate parental lines
and the resulting F1 hybrids for uniformity and plant type.

Results: It is anticipated that 3 or 4 of the most promising pure lines will
be released as genetic stocks for use by other experiment stations and seed
companies. Since potted tomatoes are in such demand by apartment dwellers as
well as home-owners, 1 or 2 lines may be increased and sold directly; however,
the maximum value will be realized through F hybrid varieties.
1










LAND 9 BLOCK A J., P. Crill

Old Vai-iety Tomato Nursery

Objetive: To evaluate standard varieties for horticultural and nutritional
qualities.

Treatments: Seeded JanUary 5, pricked out January 26, transplanted to field
March 5 through black paper mulch under which 550 pounds of 18-0-25 fertilizer
was placed per row (1500 lbs/acre rate).


Fruit from old and new standard varieties will be evaluated
qualities. The effect of ethylene treatment on nutritional
be compared with fruit not treated with ethylene;


for general nutritional
quality of fruit will


Plot
No. Name


Saturn
Marglobe
Sweet Cherry
Chanasy Early
ENZA 711838
ENZA 712200
Walter 389024
Walter 522003


191
803
583
581
811
1039
1053
1432
809

796
1040
1394
804
798
233
1045
1435
806


Ohio MR-12
Bonny Best
Schnecks #1
Strano Special
ENZA 711767
Panase F
Walter 389026
Walter 31215
Maryland 118

Floradel
Super Sioux
Tropic
Cuautla 70
Florida MH-1
Catface Walter
Walter 546
Walter 37095
Merit


329
1042
584
793
810
237
1052
1433
808

798
802
1057
791
000
232
1044
1056
805


Ponderosa
Oxheart
Schnecks #2
TropiGro
ENZA 711766
Patio
Walter 389025
Walter 389011
Caroline

Indian River
Atkinson
Tropic VF368020
Homestead 24
721402-1
White Walter
Walter 754-27
VFII Bush
Red Rock


795
1041
1047
794
789
243
1046
1434
807

799
800
1058
XXX
XXX
790
1043
792
069


Manapal
Mrs.Corbetts Spec.
Schnecks #3
TropiRed
Florida MH-1
Sub Arctic Delite
Walter
Walter 938
Dorchester

Manasota
Manalucie
Tropic VF368021
Ace
Royal Ace
Walter
Walter 389-505
Campbell 28
Chico III


173
801
330
242
812
813
1054
1055








LAND 11 BLOCK A (EAST END) C. M. Geraldson


Effect of Selected Nutrient Gradient Variations on
Yield and Quality of Machine Harvest Type Tomatoes Set 3/8


Purpose: To study the effect on yields and quality of altering the nutrient gradient
by additions of selected single salts.


Variable: Fertilizer rate and source


A 720 #/A 1
2
3
8


18-0-25-2


B 1440 #/A


+ calcium nitrate 720#/A
calcium chloride "
sodium nitrate "
potassium nitrate "

-- 720 #/A
St


Varieties:
Row 1(S)
2
3
4(N)


1B 5 l

Basic 500 1bs SuperPhos + 20 Ibs Frit (FN 503)/A


Results: Spring 72: 400-500 bu/A; Fall 72: 300-500 bu/A. Quality: ?

** ** ** ** *** ** ** *

LAND 11 BLOCK A (WEST END) D. S. Burgis

Pruning Test on Determinate Type Tomatoes. Test superimposed on Rep. D. of Herb-
Nematicide-Soil Fungicide Test.

Purpose: To establish some guidelines to show the best time and method for pruning
determinate type tomatoes. Since the determinante type plant has limited growth
and production potential any pruning will reduce fruit number and this must be
balanced by an increase in the size of those produced.


Treatments:


not pruned
3 prunes removed
6 prunes removed
9 prunes removed


Plants set March 23


Variety Florida MH-1

Fertilizer 1800 Ibs/A 18-0-25-2

Plants pruned April 30, 1973


Results: In two past seasons, results have indicated that the
increased fruit size and earliness. Total number of fruit is
increase of the remainder means that an equal number of 30 Ib


removal of 3 to 6 prunes
reduced but the size
packed boxes result.


Recommendations: Presently suggest pruning for limited trial only.


MH-1
721531-1
721501-2
721653-1




-6-


LAND 11 BLOCK A (WEST END) D. S. Burgis

Test of Herbicide-Nematicide-Soil Fungicide Treatments

purpose: To test effectiveness of Tillam herbicide and Vapam soil fumigant separ-
ately and as mixtures applied as bed-over type treatment immediately prior to
the installation of full bed mulch covet. The timing of installation of the
cover is critical because of the volatility of the chemicals. Plots were covered
approximately 30 min. after treating.

Plants were set on March 23, 1973.

Variety Florida MH-1

Fertilizer 1500 ib/A 18-0-25-2

Treatments and rates-were on broadcast basis.

1. Vapam, 40 gpa + Tillam 4 Ib (tank mix)
2. Vapam, 40 gpa
3. Vapam, 60 gpa + Tillam 4 Ib (tank mix)
S4. Vapam, 60 gpa
5. Tillam, 4 Ib
6. Check no treatment

Results: No differences can be seen and results will depend on yield records to
be obtained later.



LAND 12 BLOCK A J. P. Crill D. S. Burgis

This 550 foot land was in-the-bed fumigated with Dow 3711 on Feb. 1, 1973,
fertilized (1500 Ib/A 18-0-25-2) and covered immediately. The fumigation was
necessary because none of the STEP (Southern Tomato Exchange Program) tomato
lines have Fusarium (Race 2) resistance.

Experimental nurseries in this land (from West to East) are as follows:



I. Fresh Market Tomato Observation Nursery

Objective: To evaluate promising fresh market tomato breeding lines for general
adaptability and use in the Florida fresh market tomato industry.

Treatments: Seeded Ja.-uary 9, pricked out January 26, transplanted to field Feb. 26
through black paper mulch.
Plot No. Designation

22 STEP 602
23 STEP 603
24 STEP 611
25 STEP 612
26 STEP 613
27 STEP 614
28 STEP 615







II. Machine Harvest Fresh Market Replicated Yield Nursery

ObjectSive To evaluate fresh market type tomato breeding lines for yield, pack
out, nutritional qualities aid adaptability to complete mechanization,

Treatments: Seeded January 9, pricked out January 26, transplanted to field
Feb. 26 through black paper mulcht


Designation

Florida MH-1
730130
730149
730178
731307
731308
731287


Breeder


University of Florida
oI


III. Indeterminate Fresh Market Hand Harvest Replicated Yield Nursery

Objective: To evaluate most promising varieties and breeding lines for trellis
culture.

Treatments:.Seeded January 9, pricked out January 26, transplanted to field Feb. 26
through black paper mulch.


Designation

Floradel
Tropic
Homestead 24
STEP 592
STEP 594
STEP 606
STEP 607


Breeder


University of Florida
University of Florida
USDA-VBL
T. P. Hernandez, Louisiana State Univ.
W. H. Greenleaf, Auburn University
A. L. Harrison Texas Agric. Expt. Sta.
T. P. Hernandez, Louisiana State Univ.


IV. Fresh Market Hand Harvest Replicated Yield Nursery

Objcctive: To evaluate commercial, STEP (Southern Tomato Exchange Program) and
University of Florida tomato breeding lines for general adaptability, yield,
pack out and nutritional qualities of fresh market fruit.

T'-atments: Seeded January 9, pricked out January 26, transplanted to field
reb. 26 through black paper mulch.


Plot No.


Designation Breeder


Walter
720357-1-BK
721532-1
731111
OHH2-I1
STEP 604
STEP 608


AREC-Bradenton
AREC-Bradenton
AREC-Bradenton
AREC-Bradenton
AREC-Bradenton
E. A. Borchers, Virginia Agr. Expt. Sta.
E. V. Wann, USDA-VBL-Charleston


Plot No.


Plot No.




-8-


V. Canning Tomato Observation Nursery Land 12

Objective: To evaluate, by observation only, the promising commercial, STEP
(Southern Tomato Exchange Program) and University of Florida tomato breeding
lines for adaptability to whole-pack canning.


Treatments: Seeded January 9, pricked
March 6 through black paper mulch.


Plot No. Designation


S730977
730978
730979
730980
730983
7309k2
730985
730986
730987
730988
730989
730990
730991
730994
730995
730996
730997
730998
731000
731001
731002
731003


Breeder


out January 26, transplanted to field


Plot No.


AREC 'B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
~ AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B


Designation

731004
731005
731006
731007
731009
STEP 1017
STEP 1039
STEP 1042
STEP 1050
STEP 1052
STEP 1055
STEP 1056
STEP 1057
STEP 1058
STEP 1059
STEP 1060
STEP 1061
STEP 1062
STEP 1063
STEP 1064
STEP 1065


VT. Cannine


Tomato Replicated Yield Nursery Land 12 East End


Objective: To evaluate commercial, STEP (Southern Tomato Exchange Program) and
University of Florida tomato breeding lines for general adaptability and yield
of lye-peeled, whole pack, canned tomatoes.

Treatments: Seeded January 9, pricked out January 26, transplanted to field
March 6 through black paper mulch.


Plot No. Designation


STEP
STEP
STEP
STEP
STEP
STEP
STEP


1003
1018
1040
1044
1043
1051
1053


Breeder


Plot No. Designation


STEP 1054
730981
730984
730992
730993
730999
731008


Breeder

AREC B
AREC-B
AREC-B
AREC-B
AREC-B


Breeder


AREC-B
AREC-B
AREC-B
AREC-B
AREC-B
AREC-B







BLOCK B ENTOMOLOGICAL RESEARCH

S. L. Poe, J. P. Jones and J. F. Price

A means of insect control is still paramount to quality vegetable production
in Florida even in this day of ecological awareness and conservation efforts,
There has but one means been demonstrated and established as reliable for use on
short term vegetable crops and that means is through use of chemical insecti-
cides. Much of the work reported herein relates to evaluation of chemicals for
pest control.

Several key or major pests must be recognized for any crop grown. Tomatoes are
still readily attacked by fruitworms (tomato fruitworm, Heliothis zea, southern
armyworm, Spodoptera eridania, beet armyworm Spodoptera exigua) and fruit must
be protected from these pests. The granulate cutworm Feltia subterranea has
become a more important fruit pest where plants are not staked. Resurgent
pests such as tomato pinworm, Keiferia lycopersicella can be expected to become
devastating occasionally and for these pests controls also must be formulated.

Pests of pepper include aphids, whose greatest damage results from virus trans-
mission, fruitworms, and recently, another resurgent pest the pepper weevil.
The absence of most useful chlorinated hydrocarbon insecticides has resulted
in use of more acutely toxic materials which are more expensive and less
persistent. A shorter interval between applications and efficient plant
coverage are necessary when non-persistent contact insecticides are recommended.

Presently recommended materials for insect control on vegetables such as tomato,
pepper, and the cucurbits are adequate. However, attention should be given to
the mechanics of spray application seeking thorough coverage and the optimum
time for treatment, as well as use of the best material. By timing the appli-
cation to correspond to actual need, several sprays could be eliminated during
the crop life. Selective timing of treatments can reduce the cost of production
where adequate observation and control of fields are maintained.



LAND 5 BLOCK B (WEST END) S. L. Poe and J. P. Jones

Crop Mortality Factors

Purpose: (Exp 73ST-3). An evaluation of tomatoes grown under optimum and
suboptimum culture conditions to determine mortality and yield reducing
factors. The above data are to be used in formulating a pest management
strategy for pest control on tomatoes.

Treatments: Block 1. ABCD replicates untreated
Block 2. ABCD replicates sprayed weekly with methomyl -
dimethoate + M-45

Cultural Data: Land pH 7.0, fumigated
Plants staked, pruned and tied individually. Variety Walter




-10-


LAND 6 BLOCK B (WEST END) -


Purpose: (Exp. 73ST-2). Evaluations of chemicals
attacking tomatoes.

Treatment


1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.


Control
Fundal 90S
Dipel 25W
Fundal + Dipel
Fundal + Dipel
Orthene 75WP
Monitor 4E
Dibrom + Toxaphene 4E
Guthion 2E + Dylox 4LS
Phosvel 2.7EC
Zolone 3 EC
Dylox 80WP


S. L. Poe


for control of insect pests


Rate ai/A


0.50
0.50
0.12
0.25
0.50
0.50
2.00
0.75 + 0.50
1.0
1.0
1.0


Pertinent Data: Walter tomatoes set 3-1-73.
Applications made weekly with hand sprayer. CO2 powered at 40 psi.





LAND 6 BLOCK B (EAST) S. L. Poe

Purpose: (Exp. 73S-1). Evaluation of materials for control of insect pests
attacking sweet peppers.


Treatment


Rate ai/A


Check
Dibrom + Toxaphene .75 + 4 EC
Meta Systox R 2EC
Phosvel 2.7EC
Furadan 4F
Orthene 75WP
Zolone 3EC
Monitor 4EC
Pirimor 50WP
+ Dipel 25W


Pertinent Data:
a hand sprayer.


Yolo Wonder peppers set 3/1/73.. Four applications made with
CO2 powered at 40 psi.


1.0
0.27
1.0
1.0
0.5
1.0
1.0
0.25
0.25





-11-


LAND 6 BLOCK C A. J. Overman and J. P. Jones


Performance of tomatoes on "old land" under different cultural management.

Objective: To evaluate several methods of producing tomato on rootknot and
Fusarium wilt infested soil.


Key to thb plots: (4 replicates)
Soil .treatments: 90 ft. plots
1. Planavin
2. Furadan 10G + Planavin
3. Telone + Planavin
4. Vorlex
5. MC-33


Types of


Broadcast rate
1 lb/a (to control weeds)
10 Ibs/a + 1 lb/a
25 gal/a + 1 Ib/a
35 gal/a
320 Ibs/a


plants: 15 plant plots -
B. Bareroot seedlings
J. Container grown in Jiffy-7 pots
S. Speedlings
P. Plug mix (seeds incubated in Promix B 24 hrs) covered with Perlite


Procedure:
1. Treatment 2 (Furadan) was broadcast and rotary tilled prior to bedding.-
2. Treatments 1, 2, 3 (Planavin) sprayed and incorporated 1-2 inches deep
on finished bed.
3. All other treatments: Injected 6 inches deep into finished bed through
3 chisels 8 inches apart prior to fertilizing and mulching.
4. Planting:
(a) Treatments 1 and 2 were set with B, J, S and P immediately after
mulching the beds.
(b) All other plots were set 14 days after treatment with B, J, S
and P 14 days younger than those placed in treatments 1 and 2.

Comments: The question we hope to answer is:

When a field has been prepared for growing tomatoes which course of action is
economically feasible for the grower?

1. Treating with a herbicide and planting immediately, gambling that the
environment will not be favorable for other pest activity during the season.

2. Treating with a contact nematicide and a herbicide and planting immediately
with the idea that the 2 week head start on the growing season will offset
any loss of yield due to Fusarium wilt.

3. Treating with 1 of several broad spectrum fumigants and waiting 2 weeks
before he can plant, depending on improved crop growth in the absence of
disease pressure to offset the delay in starting the crop.

4. Using the cheaper bareroot transplant to offset cost of soil treatment and
the 2 week delay in planting, the more expensive Speedlings or Jiffy-7's
to eliminate transplant shock, or plug mix which eliminates transplant
shock, is inexpensive, but requires hand labor for thinning.







-12-


LAND 5 BLOCK C A. J. Overman and J. P. Jones


Control of Fusarium wilt and root-knot nematodes on tomato.

Objective: To compare the efficacy of 2 nematicides, 3 broad spectrum fumigants,
a herbicide and a fungicide-herbicide in tomato production on "old land."


Broadcast rate


Planavin
EDB-W85 + Planavin
Vorlex
Terrocide 30
Terrocide 30D
Sodium azide 8G + Furadan 10G
Vorlex
Sodium azide 8G


Procedure:


1 lb/A ai
6 gal/a
30 gal/a
30 gal/a
30 gal/a
30 Ibs + 10 Ibs/a
35 gal/a
30 Ibs/a


Treatments 6 and 8: Broadcast and rotary tilled prior to bedding.
Treatments 1 and 2: Planavin sprayed over the bed and
incorporated 1-2 inches deep prior to
fertilizing and mulching.
All other treatments: Injected 6 inches deep into finished bed
through 3 chisels 8 inches apart, prior to
fertilizing and mulching.


2. Replicated 4 times, 40 ft. plots.

3. Manapal speedlings set 14 days after treatment.

Comments: Questions we hope to answer:

1. Is control of nematodes alone (EDB) adequate economic protection
for tomatoes grown under a mulch in soil infested with the
Fusarium wilt organism? Previous work has indicated that a
significant reduction in wilt severity results from nematode
control.

2. Does 9 gals. of chloropicrin improve production when combined
with nematode control (EDB or D-D)?

3. Does sodium azide provide protection from wilt far enough into
the season to increase production?

4. Does Furadan in mulch culture compare favorably with the soil
fumigants for nematode control?

5. In the spring of the year when soils are cooler, how does
30 gal/a of Vorlex perform in comparison with other treatments?


Key to Field Plots:








-13-


LAND 4 BLOCK C A. ji Overman and J. P. Jones


Control of Verticillium wilt and rootknot nematodes on tomato.

Objective: To evaluate the economics of preplant soil treatments of different
price levels.


Key to the plots:


(4 replicates)


Planavin
Sodium azide 8G
Furadan 10G
Azide + Furadan
Vorlex
MC-33


Procedure:










Comments


1 lb/a to control weeds
30 lbs/a
10 Ibs/a
30 + 10 lbs/a
35 gal/a
350 Ibs/a


1. Treatments 2, 3 and 4 were broadcast and rotary tilled
prior to bedding.
2. Treatments 5 and 6 were injected 6 inches deep through 3 chisels
spaced 8 inches apart.
3. All plots were fertilized and mulched immediately following
application of treatment 6.
4. Holes were punched 14 days later and "Walter" speedlings
were set.

1. Vorlex and NC-33 over past seasons have given excellent control
of Verticillium wilt for 4 months in tomato crops.
2. Sodium azide at 30 Ibs/a controlled Fusarium wilt in the fall
tomato test. Questions we hope to answer:

a) Is 30 Ibs/a azide phytotoxic in the cooler soil treated
for a spring crop?
b) Will rootknot control with Furadan in a Verticillium-
infested field enhance crop yield?
c) Is the economy of the azide plus Furadan treatment
reflected in crop returns?






-14-


LAND 3 BLOCK C A. J. OVERMAN


Cover Crop Rotations with Fall Tomatoes


Objective: Evaluation of nematicide relationships of cover crops adaptable to
spring seeding in fall tomato beds to conserve residual fertilizer and
discourage weeds in off-season.

Procedure: Beds were constructed with high analysis fertilizer banded on the
shoulders and full-bed mulch. Cover crops were seeded through the mulch.

Key to the field plots: Crops 50' single bed plots


NK 265
Savanna
NK 121
NK 180
NK 266
Savanna 3
NK 277


8. Sorghum NK 233
9. Sorghum Mini Milo
10. Sorghum NK 129
11. Sesbania macrocarpa
12, Aschenomene americanum
13. Sweet corn Silver Queen
14. Native cover


Comments: The project is beginning with this season-with a companion field which
will rotate cover crops with spring tomatoes.





LAND 2 BLOCK C J. P. JONES


Control of Foliage Diseases of Tomato


Purpose: Control of Alternaria early blight.


Treatments:


Dithane M-45
Bravo 75W
CitCop 4E
TBCS
Bravo + CitCop
Bravo TBCS
M-45 + CitCop


8. M-45 + TBCS
9. M-45 + Dyrene
10. Dyrene
11. Bravo 6F 3
12. Bravo 6F 6
13. Bravo 6F 9
14. Control


pints weekly
pints every 2nd week
pints every 4th week


Results: Incomplete.


Sorghum
Sorghum
Sorghum
Sorghum
Sorghum
Sorghum
Sorghum











-15-


LAND 1 BLOCK C J. P. Jones and S. S. Woltz

Control of Fusarium Wilt of Tomatoes


Purpose: Determine effect of soil pH, nitrogen source, ethionine (amino acid
analogue), and a non-pathogenic Fusarium race on the development of Fusarium
wilt of tomato.


Treatments: I.


Varieties
1. Walter


2. Manapal


II. Variety Preconditioning
1. Ethionine 2. Race 1 inoculated


III. Soil pH
1. 6.0

IV. Nitrogen source
1. NH4-N


2. 7.0


2. NO3-N


Results: Incomplete.


3. 7.8







-16-


LAND 9 BLOCk J A. J. Overman


Nutgrass Control


Objective: Observational evaluation of nutgrass control with a fumigant rate
of sodium azide.


Procedure: Sodium
and 75 ft long in
tilled.

Key to the Plots:


Comments:


azide 120 Ibs a.i./acre was broadcast on 4 plots 6 ft wide
1 row. One row served as a control. Both rows were rotary


1. Azide, no mulch
2. Azide, mulch for 2 weeks
3. Azide, mulch for 2 weeks
4. Azide, no mulch
5. Control, no mulch
Gladiolus corms set on the tilled surface.
Soil listed over corms.
Plots 3 and 4 pressed.

1. Mulch improved nutgrass control.
2. Two weeks was not long enough to wait to set gladiolus.
3. Pressing increased residual phytotoxic levels of azide.
4. Previous trial indicated that nutgrass control was
not adequate when beds were constructed immediately
after incorporating azide.


LAND 12 BLOCK J J. P. Jones and J. P. Crill


Verticillium Wilt Test


Purpose: Determine effect of Verticillium albo-atrum on tomato yields.


Treatments:


I. Variety
1. Bonny Best


2. Walter


3. Fla. MH-1l


4. Tropic


II. Fumigation
1. Vorlex 35 gpa 2. None

III. Inoculation
1. Inoculated with Verticillium albo-atrum
2. Non-inoculated


Results: Incomplete.


!rXriW'AlXWwT W 7rcW-Tyr^ orWryr







-17-


LAND 3. 4, BLOCK I C. M. Geraldson

Manipulation of Nutrient Gradients


Purpose: To study the effect on yield and quality of altering the nutrient
gradient by addition of selected single salts.


Sweet corn
1st: lobelle (S)
Silver Queen (N)


Planted
1st 2nd
2/16 3/16
2/16 3/16


Harvested
1st 2nd
5/7 --


Variables Fertilizer rate and source
Rows N, M, S 1000 lbs/A
A, B 1250
C, D 750


Row Rate
18-0-25-2


750 Ibs/A


+ calcium nitrate
calcium chloride
magnesium sulfate
ammonium nitrate
ammonium sulfate
ammonium phosphate
sodium nitrate
potassium sulfate
potassium chloride
potassium nitrate
18-0-25-2


Basic 500 Ibs SuperPhosphate + 20 Ibs frit (FN 503/A).

Sweet corn (spring 1972) 480-640 crates/A
Plantings (3/3 and 3/20)


Other Crops:
Tomatoes
Pepper
Squash
Cucumbers
Cantaloupe
Pole Beans


1000-1500
600-1200
500-1000
500-1000
----


Field I:


Source
1
2
3
4
5
6
7


Results:


bu/A
bu/A
bu/A
bu/A





LAND 6 BLOCK G A. J. Overman


Foliar sprays for rootknot control on tomato.


Objective: To evaluate
transplant drench.

Key to the field plots:


the nematicide Vydate as a foliar spray and soil


Bareroot transplants
Jiffy-7 transplants
Speedlings
Plug-mix seeds


Transplant drench
1. Water
2. Water
3. Water
4. Water
5. Vydate
6. Vydate 1 pt/100 gal
7. Vydate 4 oz/plant
8. Vydate


Foliar sprays 3, 3,
1. Control
2. Vydate 800 ppm
3. Vydate 1200 ppm
4. Vydate 2400 ppm
5. Vydate 800 ppm
6. Vydate 1200 ppm
7. Vydate 2400 ppm
8. Control


Comments: No differences are apparent among treatments to date.







GREENHOUSE AREA C. M. Geraldson

Continued Development of the Concepts of a Non-Variable Root Environment.

Purpose: Integrating contributing components so as to minimize contributing
variables in the production system.


Components: -


Moisture source: Trickle-micro pore
Soil: Peat-sand-local soil
Fertilizer: 3000-4000 Ibs/A 18-0-25-2
Nutrients in the irrigation water
Basic: 1000 lbs SuperPhos + 40 lbs Frit/A


Crops:


Sweet corn Silver Queen -
Tomatoes Walter, 721770-1
Eggplant
Carnations
Pepper Yolo Wonder
Beans
Cantalope Edisto


planted
Set
Set
Set
Set
planted
Set


2/26
3/26
3/12
3/13
3/9
3/14
3/15


Variables Placement
Moisture
Fertilizer
Plants


Results: Non-variable root environment and an associated optimal production.


Treatments:


3 wks