Group Title: Annual vegetable grower's field day.
Title: Annual vegetable grower's field day. May 16, 1963.
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Permanent Link: http://ufdc.ufl.edu/UF00054245/00004
 Material Information
Title: Annual vegetable grower's field day. May 16, 1963.
Series Title: Annual vegetable grower's field day.
Alternate Title: Mimeo report - Bradenton Gulf Coast Experiment Station ; 62-8
Physical Description: Serial
Language: English
Publisher: Gulf Coast Experiment Station, University of Florida.
Publication Date: 1963
 Subjects
Spatial Coverage: North America -- United States -- Florida
 Record Information
Bibliographic ID: UF00054245
Volume ID: VID00004
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62705995

Full Text
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Gulf Coast Experiment Station Mimeo Report 62-8

TWENTY-FOURTH ANNUAL VEGETABLE GROWERS' FIELD DAY

GULF COAST EXPERIMENT STATION

May 16, 1963



RESEARCH STAFF PARTICIPATING

Ernest L. Spencer, Soils Chemist-in-Charge
David G. A. Kelbert, Associate Horticulturist
E. G. Kelsheimer, Entomologist
James M. Walter, Plant Pathologist
C. M. Geraldson, Associate Soils Chemist
John Paul Jones, Assistant Plant Pathologist
Donald S. Burgis, Assistant Horticulturist
Amegda J. Overman, Assistant Microbiologist



OUTLINE OF FIELD TOUR

Field Page

1 Tomato varietal resistance to leafminer 2
2 Control of leafminer on tomatoes 2
3 Fertilizers and plastic mulch 3
4 Fertilizer ratio and placement with plastic 4
5 Fertilizer placement and row variations 5
6 Determinate tomato variety trial 6
6 Southern Cooperative squash trial 6
7 Southern Cooperative sweet corn trial 7
8 Southern Tomato Exchange Program (STEP) 8
9 Gulf Coast Station (GCS) variety trial 10
10 Lima bean variety trial 11
11 Southern Cooperative cantaloupe trial 11
12 Fusarium Wilt soil fumigation 12
13 Control of leafminer, melonworm and aphids on cucumbers 13
14 Control of leafminer, melonworm and aphids on squash 13
14 Control of leafminer and leafhoppers on beans and southern peas 13
15 Breeding: Pole beans and tomatoes 14
16 Effect of plastic mulch on soil fumigation 15
17 Chemical herbicides Homestead 24 tomatoes 16
18 Chemical herbicides STEP 430 tomatoes 16
19 Comparison of newer soil fumigants 18
20 Chemical herbicides southern peas 18
21 Soil fungicides cucumbers 19
22 Fungicide insecticide spray compatibility test 20

Acknowledgements:
Drinks are provided by Kilgore Seed Co. and Southern Agricultural Insecticides,
Inc.
Trucks for the field tour provided by Arthur. LX-eff an0.-KRlgorb-6SeleCo.






-2-


Field 1 (E. G. Kelsheimer)

TOMATO VARIETAL RESISTANCE TO LEAFMINER

Purpose: To note the tolerance and/or resistance to leafminer attack and the effec-
tiveness of insecticidal sprays on fourteen varieties of tomatoes. Fourteen
of Dr. Walter's selections were included in this test. It has beennoted
that there is a definite varietal susceptibility to attack from leafminer
and also a definite response of the plant to treatment.

History: Set 2/14/63. First spray 3/20/63 and once each week thereafter.


Varieties:


STEP 435
484-1-1-Bk CAStMW
STEP 436
656-5-Bk-Bk CAStW
STEP 388-1-Bk-Bk-Bk
STEP 410A
Homestead 24 Lot No. W56202
STEP 314-Pink-Bk-Bk
Indian River
Manapal
STEP 430
STEP 390-Bk
STEP 432
STEP 434


. Leafminer count by leaflet
Sprayed Unsprayed Combined
11 53 64
10 46 56
/ 48 55
8 50 58
8 51 59
5 39 44
7 53 60
17 59 76
22 67 89
13 52 65
17 38 55
18 41 59
7 39 46
21 62 83
*LSD 26


Sum of readings on 3/25, 3/29, 4/5 and 4/12

1-7 Determinates
8-14 Indeterminates
****************

Field 2 (E. G. Kelsheimer)

CONTROL OF LEAFMINER ON TOMATOES

Purpose: Evaluation of insecticides for control of leafminer on tomatoes.

History: STEP 409 seeded 12/11/62, set 2/14/63.
First spray 3/20/63 and once each week thereafter.


Treatments:


1.
2.
3.
4.
5.
6.
7.


Leafniner counts 4/12 and 4/19


First Series


Check
Disyston Granular 10%
Thimet Granular 10%
3707 (Bomyl) Granular 10%
3422 Granular 10%
Cygon 1 pt.-l0 (reduced to 1/2 pt. on 5/1)
9203 1/2#-100












-3-


Field 2 (continued)


Check
Guthion
3707
3707
8305
Sevin
3652


Second Series


Leafminer counts 4/12 and 4/19


1 pt.-l00
1 pt.-l00


1#-100
1#-100
1#-1oo


Field 3 (C. M. Geraldson)

FERTILIZERS AND PLASTIC MULCH


Purpose: To study the effect of fertilizer sources
and quality of tomatoes and cucumbers.


History:


and rates under plastic on yield


Crop: Tomatoes Manapal, seeded 12/18/62, set 1/31/63
Cucumbers Ashley, seeded 2/20/63
Fertilizer application:
1. Concentrated superphosphate at 400#/A. was broadcast before
planting. Frit (FN 502) was mixed in the fertilizer at a
rate of 16#/ton.
2. Ninety percent of the total fertilizer was placed in 2 bands
on the bed surface 12 to 15 inches from the plant. The re-
maining fertilizer was broadcast between the bands.


Treatments:


11. 1000#/A.
12. 2000
13. 4000


18-0-25-2 + Frit + Phosphorus, Urea + KNO3

11


18-0-25-2 + Frit


+ Phosphorus, Urea + K2SO0
it


31. 3000#/A.
32. 6000
33.12000


6-8-8 (25% org.) commercial mix
oI


1000#/A.
2000
4000















Field 4 (C. M. Geraldson)


FERTILIZER RATIO AND PLACEMENT WITH PLASTIC MULCH


Purpose: To study the effect of fertilizer ratio and placement
under plastic on yield and quality of tomatoes.


History:


variables


STEP 410, planted 12/20/62, set 1/31/63
Fertilizer application Same procedure as in Field 3 except
as treatments indicate variations.


Treatments:


Broadcast Ratio
lbs./A -


300
300
300

600
600
600

900
900
900


2-8-8
4-8-8
6-8-8

2-8-8
4-8-8
6-8-8

2-8-8
4-8-8
6-8-8


between bands from plant

6"
6"
6"

12"
12"
12"

18"
18"
18"


In bands
18-0-25*

1900
1900
1900

1800
1800
1800

1700
1700
1700


*Plus Frit, magnesium, and phosphorus.


******** * **

















Field 5 (C. M. Geraldson)


FERTILIZER PLACEMENT AND ROW VARIATIONS

Purpose: To study the effect of fertilizer placement and row variations
with and without plastic on yields and quality of tomatoes and
cucumbers.

History: (All treatments received 4000 Ibs./A. of 18-0-25-2 + Frit +
Phosphorus).

71 Double row tomatoes 1 center band,
without plastic.

72 Same as 71 but with plastic

81 Double row tomatoes 1 center band + 2 outside bands,
without plastic

82 Same as 81 but with plastic

91 Single row cucumbers 2 outside bands,
without plastic

92 Same as 91 but with plastic.

Results:

Yield (spring crop 1962) from ground tomato plants without
plastic averaged 612 bu./A. of marketable fruit compared to
1016 bu. from plots with plastic. A similar comparison with
staked tomatoes averaged 873 and 1047. Marketable cucumber
yields averaged 410 bu./A. from plots without plastic, com-
pared to 873 from plots with plastic.


~* ** ** *** ** ** *







-6-


Field 6 (East Half) (D. G. A. Kelbert)

DETERMINATE TOMATO VARIETY TRIAL

Replicated

Purpose: To compare advanced GCS breeding lines with the commercial variety Homestead
24, for quality, yield and fruit size, as well as other horticultural charac-
ters. These studies afford an opportunity to collect data on potential new
varieties; planting is also a good demonstration of trellis type, continuous
tying. There are 5 replications, one to each row.

History: Same as for Gulf Coast Station Trials.

Planting consists of one commercial variety and 4 advanced GCS breeding
lines. Rows are 54" wide, plant spacing is 2' apart.
Plants were pruned once to 2 stems.

Varieties:

1. Homestead 24 Kilgore Seed Co.
2. STEP 410A G.C.S. considered best of 366 family.
3. 656-5-Bk-Bk-CAStW G.C.S. has concentrated yield, large vine;
promising for wide row culture. Res. to G.W.
4. STEP 435 G.C.S. large fruited, small vine type.
5. STEP 436 G.C.S. very tall determinate, resembling Homestead 24,
has resistance to G.W. and grey leafspot.
6. (Guard Row) STEP 388 (not replicated) concentrated yield.
7. (Guard Row) STEP 412 (not replicated) large fruited determinate.




Field 6 (West Half) (D. G. A. Kelbert)

SOUTHERN COOPERATIVE SQUASH TRIAL

Replicated

Purpose: To compare several disease (mosaic) resistant breeding lines with commercial
varieties for yield and quality, color, skin texture and uniformity of
fruit type.

History: Seeds were planted in the field on March 5, thinned to two plants, hills 24"
apart. Replicated 3 times.

Varieties:

1. Yellow Straightneck Asgrow
2. Yellow Crookneck Asgrow
3. South Carolina-2
4. South Carolina-6
5. South Carolina-7
6. South Carolina-8
7. South Carolina-9


* * * * *










Field 7 (D. G. A. Kelbert)

SOUTHERN COOPERATIVE SWEET CORN TRIALS

Observational


Purpose: To compare
sweet corn
uniformity


a number of new commercial varieties and experimental
hybrids for yield, quality, plant vigor, earliness,
and marketability.


History: Seed planted Feb. 25, 1 plant per hill, 9" apart.
There are two plantings in block.
Total fertilizer 2100 Ibs./A. 4-8-8 + 100 lbs./A. ammonium
nitrate at silking.
Pesticides For earworm control DDT 2 lbs./100 + Parathion
1 lb./100 on weekly schedule till silking, then same
every 2 days till harvest.

Varieties:


Golden Security
XP 2128
XP 2127
XP 215
XP 276-B
R-3062
Seneca MK-17
20 x 409
Ill. 330a x 322
Seneca MK-18
Seneca MK-19
SRS 33.36
SRS C-2089
Table Topper
SRS C-2092
KVF 60-93
Valleytender
Corneli 109
E 3108
E 3100
E 3109
Exp. Hy. No. 50
Exp. Hy. 26E61
R 2427


32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
*44.
*45.
*46.
47.
48.
49.
50.
51.
52.


Jubilee
R-12428
R-303
Silver Queen (R-474)
4007 F
4051 F
4052 F
63330 B
I 39A X 1715
W-Q-6-A X H-3-D
IDR X 97-12-A-C
4206-3 X H-3-B
LeF-2-A X 97-A-C
822-3-A X H-3-B
2015-2 X H-3-5
4206-3 X K-A-B
Exp. Hy. D1052
Exp. Hy. D1062
Southern Belle
Tasty Vee
Tasty Vee


*Southern Belle in east replication


* * * * *


8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
















Field 8 (D. G. A. Kelbert)

SOUTHERN TOMATO EXCHANGE PROGRAM

(STEP) Replicated Trial


Purpose: To compare a number of advanced breeding lines from many sources
with commercial varieties for quality, yield, earliness, fruit
size and other horticultural characters. These studies afford an
opportunity to collect data on potential new varieties to deter-
mine their local adaptation before their actual introduction.

Planting data: Same as for Gulf Coast Station trials (Field 10, Page 10).
Planting consists of2 commercial varieties and 8 advanced breeding
lines. Plants were set in field Feb. 14. Rows 4.5' apart.
Plants spaced 16" apart. Determinate types pruned once; regu-
lar types pruned 3 to 4 times; all to 2 stems. There are 3
replications, (1 complete replicate on each row on south side
of block).

Varieties:


1. Rutgers
2; Homestead 24
3. STEP 372
4. STEP 373
5. 656-5-Bk-Bk
6. STEP 388
7. STEP 390
8. STEP 397
9. STEP 401

10. STEP 410


Asgrow
Res. to Fus. wilt.
SEVBL* Res. to CAStW
SEVBL Res. to CAStW
GCS. Res. to CAStW and greywall.
GCS Res. to CAStW, growth cracks, B.E.R.
GCS Res. to CAStMW, B.E.R., greywall.
SEVBL Res. to Fus. wilt, grey leaf spot
Plant Industry Station, USDA Res. to
Verticillium and Pus. wilt.
G.C.S. Res. to CAStW, greywall, B.E.R.,
catface and wilt.


*SEVBL Southeastern Vegetable Breeding Lab. (Andrus)


* * * * *




*9-


Field 8 (4 rows on north side) (D. G. A. Kelbert)

SOUTHERN TOMATO EXCHANGE PROGRAM

Observational Trials

Purpose: To screen and evaluate new commercial varieties and breeding stocks
from many sources for desirable horticultural characters as poten-
tial commercial varieties and of value as breeding stocks for the
GCS breeding program.

History: Seed planted Jan. 2, transplanted to field Feb. 14.
Plants spaced 16", rows 4.5' apart. Other cultural data same
as GCS trials.

Varieties and Lines and Source of seed:

1. Rutgers 18. STEP 422
2. Nemared 19. STEP 423
3. STEP 395 20. STEP 424
4. STEP 398 21. STEP 425
5. STEP 400 22. STEP 426
6. STEP 408 FAES 23. STEP 427
7. STEP 409 FAES 24. STEP 428
8. STEP 412 FAES 25. STEP 429
9. STEP 413 26. STEP 430 FAES
10. STEP 414 27. STEP 431 FAES
11. STEP 415 28. STEP 432 FAES
12. STEP 416 29. STEP 433 FAES
13. STEP 417 30. STEP 434 FAES
14. STEP 418 31. STEP 435 FAES
15. STEP 419 32. STEP 436 FAES
16. STEP 420 33. STEP 437
17. STEP 421 34. STEP 438 FAES


** ** *** ** * *




-10-

Field 9 (East 3/4th) (D. G. A. Kelbert)

GCS TOMATO VARIETY TRIAL

Purpose: Evaluation of Gulf Coast Station (GCS) advanced breeding lines which are
considered potential new varieties, compared with Manalucie, Indian River
and Manapal. Evaluations are made on the basis of quality, yield, fruit
size, earliness and other horticultural characters such as vine type, re-
sistance to cracking, blotchy ripening, graywall, etc.

History: Seed sown in flats on Jan. 2; seedlings transplanted to other flats on
Jan. 18 and transplanted to the field Feb. 14. Land was fertilized on
Feb. 6 with 4-8-8, 20% organic formulation, at the rate of 640 lbs./A.
placed on the bed. Subsequent fertilizer applications of the same formu-
lation were applied as side dressing for a total of about 3000 Ibs./A.
plus 150 Ibs./A. of calcium nitaate. Row spacing is 54", plant spacing in
the row 12". Plants pruned to a single stem in this block and pruning was
discontinued after plants were half grown to assure good cover for protec-
tion of fruit. Pesticide program -- Alternating Manzate and Parzate plus
parathion 2 lbs./100 on a weekly basis during favorable weather, twice each
week after plants were half grown. Plants had 2 sprays which included Gu-
thion for leafminer control, one spray included calcium chloride, 3 sprays
included Sol-U-Bor (Boron).

Varieties:
1. Manalucie standard for vine ripe harvest.
2. Indian River early dual purpose variety for fall.
3. Manapal rapidly gaining favor as dual purpose variety.
4. 574-5-2-1-Bk CAStW
5. STEP 390-Bk-l-Bk-Bk CAStMW Res. to cracking, graywall.
6. STEP 430 CAStW large fruited prolific; Res. to catface, graywall
and blossom-end rot (BER).
7. STEP 431 CAStMW Same as 6 plus resistance to TMV.
8. STEP 432 CAStMW Similar to #6 and #7.
9. STEP 434 CAVStW resembling Grothen's Globe; Res. to graywall and BER.
10. 601-5-3-Bk CAStW

North Border Row 878 F2 Hybrid.
South Border Row cross between 601 X Ponderosa


Recommended varieties:
Stake Culture -
Mature green harvest


Vine ripe harvest


- Homestead 24
Indian River
Manapal
Floralou, Marion for limited trial

Manapal
Manalucie
Indian River for fall and winter harvest
Marion for limited trial


Field 9 (West end) (D. G. A. Kelbert)

CHERRY TOMATOES

Seven disease-resistant stocks of cherry tomatoes producing fruits of
various sizes.


* * * * *




-11-
Field 10 (D. G. A. Relbert)

LIMA DEAN VARIETY TRIAL

Purpose; To compare four promising new lima bean breeding stocks with a commercial
variety for yield, quality, vine type and bearing characteristics.

History: Seed planted Feb. 25. Hills 12" apart. There are two plants per hill.
Fertilized 2000#/A. 4-8-8 20% organic.

Varieties:
1. USDA 561G
2. USDA 861G
3. USDA 551W
4. USDA 761W
5. Fordhook 242 Bolg.

Border rows Henderson Bush and Jackson Wonder
****************

Field 11 (D. G. A. Kelbert)

SOUTHERN COOPERATIVE CANTALOUPE TRIAL

Purpose: To compare a number of disease-resistant breeding stocks and new varieties
with established commercial varieties for the following characteristics:
resistance to downy and powdery mildew, gummy stem blight, soil rot and va-
rious other diseases and to evaluate them with regard to yield, quality,
marketability and adaptability; also to evaluate the advantages of plastic
mulch.

History: One planting of seeds were made in paper bands on Feb. 25; these plants held
in reserve to replace missing hills in the field from seed planted direct on
March 6.

Beds were made up on March 5 in the following manner: Two furrows wrre thrown
up for first part of bed and fertilizer mixed with this part to provide nutri-
tion for young plants. Additional furrows were thrown on to bed and the bal-
ance of fertilizer applied in bands each side; allowed to remain in bands.
Beds were then shaped with a bed press and plastic mulch was applied. Holes
were cut in the plastic with a can and seed placed in this opening. Missing
hills were later filled in, using the plants in plant bands. Hills 2 feet
apart were thinned to 2 plants.

There were 3 replications, 2 of which are mulched. Total fertilizer applied
all at one time, about 3000 lbs./A. 4-8-8 25% organic plus 80 Ibs./A. potas-
sium nitrate on unmulched plots. Pesticide program manzate and parzate plus
parathion on alternate weekly sprays plus '2 applications of Karathane.

East End Replicated

Varieties:
1. Hales Best Jumbo 6. 62-19
2. Va. 814 7. 62-12
3. S.C. 180 8. 61-33
4. 63-22 9. Va. 435
5. 62-35 10. Edisto


Border rows Smith's Perfect












Field 11 (Continued)


West End Observational


Varieties:


L-15-22
L-59
L-39R
L-30-C-58
45 S.J. (Asgrow)
Large cantaloupe, source unknown
(42-61-1)-3 L. C. Pierce, Ames, Iowa
Ga. 47
Ga. 47
OSU371 Oregon State Univ. slip type honeydew
OSU374 Oregon State Univ. -


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

Field 12 (J. P. Jones and A. J. Overman)

FUSARIUM WILT TEST


Pjripose: (1) Determine the effect of various soil fungicides on the development of
nematodes, Fusarium wilt, and other soil-borne diseases of tomato
(Variety STEP 322).
(2) Determine the volume of treated soil needed to prevent the development
of Fusarium wilt.


Treatments:


Control
Trizone
Trizone
Trizone


VPM
VPM
DUPX

Volex
Nemex
Nemex
Nemex


chisel )
chisels)
chisels)

chisels)
chisels)
chisels)

chisels)
chisel )
chisels)
chisels)


200 lbs./A.



150 gal./A.




50 gal./A.


Results: Incomplete


-12-






-13-


Field 13 (E. G. Kelsheimer)

CONTROL OF LEAFMIIER, MELONWORM AND APHIDS ON CUCUMBERS

Purpose: To note the effectiveness of insecticides for the control of leafminer,
melonworm, and aphids on cucumber.


Treatments:

1.
2.
3.
4.
5.
6.


First block


Check
Cygon
Phosdrin
Parathion
9203
Thiodan


1 pt.-100
1/2 pt.-100
3#/100
1#/100
1/2#/100


Second block
Check
8305 50W 1#/100
N2788 25W 1#/l00
Telodrin 1.2 E 1 pt.-l0
8305 1 pt.-100
Imidan 3E 1 qt.-100


Field 14 (E. G. Kelsheimer)

INSECTICIDES ON BEANS, SOUTHERN PEAS AND SQUASH

Purpose: To note the effectiveness of insecticides for the control of
leafhopper on beans and southern peas.
Southern peas have not been picked.


leafminer and


History: First spray 3/20 and last spray 4/10. Weekly application. Total of 4 sprays.


Treatments: Beans


Check
Guthion
3707
3707
8305
Sevin
3562 (Bidrin)


* * *** ** **


Purpose: To note the effectiveness of insecticides
melonworm and aphids on squash.


for the control of leafminer,


Treatments:


Check
Cygon
Phosdrin
Parathion
9203
Thiodan


1 pt.-lO0
1/2 pt.-l0
3#-100
1#-100
1/2#-100


* * * * *


1 pt.-100
1 pt.-100
1#-100
10-100
I#-iO0
1#-100
1#-100


Weights
162.3
150.2
157.6
155.7
148.3
154.0
159.7










Field 15 (J. M. Walter)


The listing order is a matter of position on the field, from east to west, and
says nothing about relative importance.

POLE BEAN BREEDING
(in coop. with Drs. A. P. Lorz and R. A. Conover)

This crop is far past prime stage for observation. Though not seeded until
March 1, development was rapid and the average line was ready for first harvest on
the 56th day, Dade and Florigreen on the 53rd day. Rust has been active in the
planting since early April, and there should be no doubt about the rust reaction of
any selection made from segregating lines. The most important new segregating lines
in the planting are:

61-3-12, a definitely early, prolific stock from mating between Florigreen (S&M se-
lection) and F-M 191.

61-7-3-2, a line with superior pod characters from mating between SES #2 and F-M 191..

The immediate objectives in view in the above-listed two families, started in
1961, are pod characters at least as attractive as those of F-M 191 together with
greatly improved yield.

Another type of possible future interest because of potential yields of attrac-
tive long pods is 60-19-1-1-1, which resulted from a mating between Blue Lake and a
long-podded sister of Dade. There is still the chance to select lines with string-
less pods from this vigorous stock.



TOMATO BREEDING
(In coop. with D. G. A. Kelbert and several staff members of other stations)

New Mosaic-resistant Lines Showing Promise Horticulturally:

476-6-CAStMW, a half dozen prolific lines, including STEP 431.
492-2 CAStMW, a prolific type, with both parents resistant to TMV.
530-2 CAStMW, five prolific lines, offering new chance for combined TMV
and BR resistances.

New Fl Hybrids for Resistance to TMV:

Because of the need for tobacco-mosaic resistance in the vine-ripened acreages,
hydroponics gardens, and greenhouses the effort to find a superior F1 is again
being made, despite discouraging results of two years ago. Under trial are 11
new Fl populations of which both parents are our TMV-resistant lines in various
stages of evaluation. At present the two that show the best prospects this
season are Nos. 10 and 11, which have a common parent. That either will out-
yiedd this parent (377-6-Bk-l-Bk CAStMW) is very doubtful. It is not to be
expected that either of these two Fl items would show superiority in a fall
planting.


-14-









-15-
Concentrated-vielding Determinates

Advanced Lines -- STEP 388 and STEP 410
Intermediate Lines 656-6-Bk-Bk CAStW and 709-FP3-Bk CAStW, the former with a
clear record for BR-resistance to date and appearing to fit
well in the wide-row style of culture.

Prolific New Lines with Resistance to Verticillium Wilt, Selected by Dr. J. W. Strobel
of Sub-Tropical Experiment Station

86-D2-D1 CAVStW, Determinate and Normal
103-D4-DBk CAVStW, Tall determinate.

Early-setting Habit

Line 656-FPl-FP2-3 CAStW offers the chance to see again this feature important
to most tomato growers, but forgotten by many in the rush of tractor-farming.
The indications are that our temperatures at this latitude in Florida do not rep-
resenta problem on fruit-setting with this line. On Labor Day, 1962, under high
temperature and high humidity, it was found outstanding for fruit set just as
it was on March 15 this spring. On April 25 the line had several well-formed
fruit ripe, from seeding on December 28, transplanting on February 15.



Field 16 (A. J. Overman and D. S. Burgis)

EFFECT OF PLASTIC MULCH ON SOIL FUMIGATION

Purpose: To determine whether mulching immediately after treating with recommended
fumigants increases probability of phytotoxicity or delays planting.

History: Squash, yellow summer crookneck, treated March 19, seeded March 21.

Treatments:

4 replicates (A-D) of 40-foot plots. One-half of each plot covered immediate-
ly after treatment with 1.5 mil polyethylene film.

No. Material Rate gal./A, Application method
1 Check -- -
2 Vorlex 25 single stream 6" deep
3 VPM 25 single stream 6" deep
4 SD 345 6 drench 2' band in 1/8" water
5 EDB plus 6 single stream 6" deep
Allyl alcohol 25 drench 2' band in 1/8" water

Recommendations: Vorlex, VPM (vapam) and EDB + allyl alcohol are recommended soil
fumigants.


* * * * *




-16-

Field 17 (D. S. Burgis)

CHEMICAL HERBICIDES

Purpose: To test the tolerance of field-set plants to 2 rates of the herbicide Dac-
thai when applied at different stages of growth. (Tomatoes, var. Homestead
24 and Manapal).

Treatments:
1: 8 8#/A Check
1: 24 24#/A Check

2: 8 8#/A Dacthal at setting
2: 24 -240A. Dacthal at setting

3: 8 8#/A Dacthal 1 week after setting
3: 24 24#/A Dacthal 1 week after setting

4: 8 8#/A Dacthal 2 weeks after setting
4: 24 24#/A Dacthal 2 weeks after setting

5: 8 8'/A Dacthal 3 weeks after setting
5: 24 24#/A Dacthal 3 weeks after setting

6: 8 8#/A Dacthal 4 weeks after setting
6: 24 24#/A Dacthal 4 weeks after setting

7: 8 8#/A Dacthal 5 weeks after setting
7: 24 24#/A Dacthal 5 weeks after setting

There is some Dacthal injury on treatments 2, 3 and 5. The 2 and 3 injury
occurs at both the 8 and 24 pound rate. No. 4 injury is at the 24 pound
rate and there is some injury on No. 5 at the 24 pound rate.

Results: No results or recommendations at the present time.



Field 18 (D. S. Burgis)

CHEMICAL HERBICIDES

Purpose: Postemergence herbicides applied after staking. (Tomato, Var. STEP 430)

History: Plants were set on Feb. 26, hoed on Mar. 21, and staked and tied on Mar.27.
Hoed lightly on Mar. 28 at which time herbicides were applied.

Treatments:

1. Check hoed 3 times after other plots were treated.
2. Tillam 4#/A granular incorporated
3. Solan 4#/A sprayed
4. Amiben 3#/A granular
5. Dymid 4#/A granular
6. Dacthal -10 5#/A sprayed
7. SD 7961 (Shell) l#/A granular incorporated

Results: Treatments 2, 3 and 7 have been hoed once whereas 4, 5, 6, have not been hoed.
Treatments 4 and 5 seem to have best residual control.


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Present Recommendations for tomatoes:

DYMID (diphenamid) This material has given consistently good results
when applied at planting to direct-seeded tomatoes, post-setting or at
late lay-by. Dymid must be applied to soil which has normal moisture and
before the weed seedlings emerge. The recommended application of 5 lbs.
broadcast will control annual weeds and grasses for 8 to 14 weeks. Water-
grass (Cyperus sp.) is not controlled by the chemical. Tomatoes are quite
tolerant of Dymid and lay-by applications of up to 12 pounds per acre have
shown no injury. Spray which wets the foliage at lay-by application causes
no injury or burning. It has been reported from other areas that Dymid has
a tendency to remain active in the soil for long periods and has proven in-
jurious to winter cover crops following tomatoes. No such effect has been
observed in Florida but the grower should realize that this possibility ex-
ists.

TILLAM (PEBC) The pre-plant and early lay-by incorporation treatment
with Tillam has given reliable weed control wherever proper application has
been made. Control of annual weeds and grasses lasts for 7 to 9 weeks. For
this reason the lay-by treatment is preferred. Tomatoes have a satisfactory
tolerance to the herbicide and the broadcast rate of 4 pounds (2/3 gallons of
6E emulsifiable concentrate) is recommended for pre-plant incorporation while
a granular is best for lay-by (80 po~..ids of 5% granular). lay-by treatments
should not be made after fruit begins to form. Tillam is quite effective for
control of Burmuda-grass if incorporated into newly cultivated soil before
the runners become re-estallished. Soil moisture is not critical, if applied
at lay-by and incorporated into dry soil it will be more effective than if
the soil is wet.

SOLAN solann) This herbicide has proven effective when applied over
direct-seeded tomatoes. The chemical at 4 pounds (4 quarts of 4# emulsifia-
ble concentrate) per acre broadcast is effective against germinated weed
seeds and for this reason treatment should be delayed until 3 to 4 days af-
ter seed is sown. Moisture is critical. No dry soil layer should exist
if treatment is to be successful. Best results have becaobtained following
overhead irrigation. Lay-by treatment at 4 pounds per acre is also recom-
mended and may be employed in addition to the treatment following seeding.
Solan gives 5 to 7 weeks control of weeds.

In using herbicides you should always remember to READ THE LABEL. Be
sure that the label allows you to use the chemical in the production of your
crop. FOLLOW DIRECTIONS. Be SURE that you understand WHEN to apply, HOW
to apply and HOW MUCH to apply.


.,- ~ .. j. .,








-18-


Field 19 (A. J. Overman and D. S. Burgis)

COMPARISON OF SOME NEWER SOIL FUMIGANTS

Purpose: To test the efficacy of 5 newer fumigants for control of stubby-root
nematodes and Fusarium wilt of tomato.

History: Tomato, wilt-susceptible Rutgers; soil treated Mar. 28; seeded Apr. 11

Treatments:


4 replicates (A-D) of
One half of each plot
mil polyethylene.


20 foot plots.
covered immediately after treatments with 1.5
All materials applied in a single stream 6" deep.


No. Material Rate gal./A
1 Check
2 EP 230 (30%) 25.0
3 EP 230 (90%) 8.3
4 SD 7727 (2EC) 8.0
5 Nemex 50.0
6 Penphene (4EC) 3.0
7 TMCB (75%) 25.0


Recommendations: None of these materials is as yet, recommended.



Field 20 (D. S. Burgis)

CHEMICAL HERBICIDES

Purpose: Preemergence herbicides applied immediately after seeding.
(Southern peas, var. Cal. Blackeye No. 5).


Treatments:
1.
2.
3.
4.
5.
6.
7.


Check
Dymid 5# granular
Dymid 8# granular
Dacthal 14# sprayed
Dacthal 20# sprayed
Amiben 5# granular
R3446 (Stauffer) 4# sprayed


Plots have not been hoed.

Results: No recommendations. All treatments have shown good past performance.


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





-19-


Field 21 (J. P. Jones)

CUCUMBER SOIL FUNGICIDE TEST

Purpose: Determine the effect of various fungicides on the development of
weeds, damping-off, and soil rot of cucumbers (variety Ashley).

History: The treatments were applied March 12 3 days prior to seeding.

Treatments:

1. Vorlex (60 gal./A)
2. Nia. 5961 (50#/A)
3. Vorlex (60 gal./A) + SD-345 (50#/A)
4. Nabac 25EC (1#/A)
5. Isobac (2.0 gal./A)
6. SD-345 (50#/A)
7. Control
8. TCNA (50#/A)
9. DAC-2031 (20#/A)
10. Nabac 25 EC (1#/A) + Captan (5#/A)
11. Captan (5#/A)
12. Difolatan (20#/A)

Results: Incomplete. Final stands were so erratic, due to birds and.or
rats, that no damping-off data were taken. No fruit have been
harvested. Hence no data on soil rot are available.

Treatments 1, 2, 3, and 6 gave excellent and treatment 8 gave
moderate weed control.

Treatments 6 and 3 increased the length of the vines by over 2.5
times when compared to the control April 23.


* * * * *




-20-


jield 22 (J. P. Jones and E. G. Kelsheimer)

FUNGICIDE-INSECTICIDE SPRAY COMPATIBILITY TEST

Purpose: Compare the efficacy of certain combinations of insecticides and fungicides
on Homestead 24.

Treatments: Pounds per 100 gal.

1. Maneb (1.5) + Parathion (3.0) + DDT (2.0)
2. Maneb (1.5) + Parathion (3.0) + Sevin (2.0)
3. Maneb (1.5) + Parathion (3.0) + TDE (2.0)
4. Maneb (1.5) + Guthion (2.0) + DDT (2.0)
5. Maneb (1.5) + Guthion (2.0) + Sevin (2.0)
6. Maneb (1.5) + Guthion (2.0) + TDE (2.0)
7. Maneb (1.5) + Cygon (1 pt.) + DDT (2.0)
8. Maneb (1.5) + Cygon (1 pt.) + Sevin (2.0)
9. Maneb (1.5) + Cygon (1 pt.) + TDE) 2.0)
10. Zineb (2.0) + Parathion (3.0) P DDT (2.0)
11. Zineb (2.0) + Parathion (3.0) + TDE (2.0)
12. Zineb (2.0) + Parathion (3.0) + Sevin (2.0)
13. Zineb (2.0) + Guthion (2.0) + DDT (2.0)
14. Zineb (2.0) + Guthion (2.0) + Sevin (2.0)
15. Zineb (2.0) + Guthion (2.0) + TDE (2.0)
16. Zineb (2.0) + Cygon (1 pt.) + DDT (2.0)
17. Zineb (2.0) + Cygon (1 pt.) + TDE (2.0)
18. Zineb (2.0) + Cygon (1 pt.) + Sevin (2.0)
19. Maneb (1.0) + Dyrene (1.0) + Parathion (3.0) + DDT (2.0)
20. Maneb (1.0) + Dyrene (1.0) + Parathion (3.0) + Sevin (2.0)
21. Maneb (1.0) + Dyrene (1.0) + Parathion (3.0) + TDE (2.0)
22. Maneb (1.0) + Dyrene (1.0) + Guthion (2.0) + DDT (2.0)
23. Maneb (1.0) + Dyrene (1.0) + Guthion (2.0) + Sevin (2.0)
24. Maneb (1.0) + Dyrene (1.0) + Guthion (2.0) + TDE (2.0)
25. Maneb (1.0) + Dyrene (1.0) + Cygon (1 pt.) + DDT (2.0)
26. Maneb (1.0) + Dyrene (1.0) + Cygon (1 pt.) + Sevin (2.0)
27. Maneb (1.0) + Dyrene (1.0) + Cygon (1 pt.) + TDE (2.0)

Results: No yield data have been taken. However, several of the combinations have
caused foliage damage which can be classified into three groups,

(1) Chlorosis: Chlorosis of the leaflets especially along the mid-veins.
This type of injury developed after only 1 spray application.
Treatments 1, 3, 4, 6, 9, 10, 11, 13, 15, 17 and 27 caused moderate
to severe chlorosis; treatments 7, 16, 18, 23, 24, 25, and 26 caused
slight to moderate chlorosis; and treatments 2, 5, 8, 12, 14, 19, 20,
21, and 22 caused very slight to no chlorosis.

(2) Hormone Effect: Malformation of the leaves and leaflets, shoestringy,
coarse, thick, hairless, white venining, and very similar to 2.,4-D in-
jury. Sprays were initiated Mar. 15 and this type of damage was noticed
Apr. 5. Treatment 17 caused moderate to severe distortion; and treat-
ments 12, 14, 15 and 19 caused very slight distortion.

(3) Epinasty: Crinkling, cupping, twisting, curling and necrosis of the
leaves and leaflets. Apparent on some of the plants after one spray
application. Treatments 19, 20, 21, and 23 caused moderate to severe
damage; and treatments 2, 4, 5, 14, 15, 22, and 24 caused very slight
to slight damage.


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200 copies




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