Title: Lettuce and endive production guide
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Permanent Link: http://ufdc.ufl.edu/UF00084475/00001
 Material Information
Title: Lettuce and endive production guide
Series Title: Lettuce and endive production guide
Physical Description: Book
Publisher: Agricultural Extension Service
 Record Information
Bibliographic ID: UF00084475
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 221302219

Full Text

Circular 123 March 19



COOPERATIVE EXTENSION WORK IN
AGRICULTURE AND HOME ECONOMICS
(Acts of May 8 and June 30, 1914)
Agricultural Extension Service, University of Florida
Florida State University and
United States Department of Agriculture, Cooperating
H. G. Clayton, Director





*







LETTUCE AND ENDIVE


PRODUCTION GUIDE

(Prepared in cooperation with workers
of the
Florida Agricultural Experiment Stations)










0











AGRICULTURAL EXTENSION SERVICE
ATMTCQIT7TTr W T 1fODTfTA





Additional information is available in the fol-
lowing publications: University of Florida Agri-
cultural Experiment Stations-Bul. 365 and
USDA-FB 1953. For currently available pub-
lications and for further details on local prob-
lems, contact your County Agricultural Agent
of the University of Florida Agricultural Exten-
sion Service.

FLORIDA AND LEADING COUNTIES' HARVESTED
ACREAGE (1952-53 SEASON)
Lettuce (Incl. Romaine) Endive (Incl. Escarole)
Dade ....................-... 150 Hillsborough ............ 25
Hillsborough .......... 225 Lake & Orange ...... 750
Orange ............ 150 Manatee ...................
Palm Beach .............. 1,175 Palm Beach .............. 2,500
Seminole .................... 100 Seminole .................... 375
Sumter ...................... 200 Others ........................ 100
Others ...................... 400
TOTAL ................. 2,400 TOTAL ..................... 3,800

SEVERAL SEASONS' AVERAGE YIELD, COSTS AND
RETURNS PER BUSHEL BY AREA
(Based on Representative Growers' Records and Estimates *)
Manatee-
Everglades Ruskin Sanford
(1947-48 to (1948-49 to (1947-48 to
1951-52) 1951-52) 1951-52)
Bushels per acre .... 411 413 543
Production costs ....$0.39 $0.52 $0.50
Harvesting costs .. 0.75 0.60 0.63
Sales F.O.B ......... 1.18 1.35 1.38
Net returns per bu. 0.04 0.23 0.25
*Estimates are mostly for endive, but some combine data for









TI1LM 1JU01IIU&.-J.LJVZUO 101rV CLIU 3 IVIUO 1,

LETTUCE (Leaf)
3lack-Seeded Simpson.-Leaves large, J
1 crumpled.

LETTUCE (Romaine or Cos)
)ark Green Cos.-Heads medium large. L
'k green.
'arris Island Cos.-Similar to Dark Greer
Tolerant to mosaic and resistant to bc

ENDIVE (Escarole)
uull Heart Batavian.-Broad-leaved with
le bleached heart. Smooth.
Florida Deep Heart.-Large, full heart. S
crumpled.
)eep Heart Fringed.-Large, deep, ble
Lrt. Curled.
nting Dates Seed Requirei
*th Florida: January- Seedbed, plant acre
[arch; September lb.
tral Florida: October- Direct seeding--Y1
'ebruary acre
.th Florida: Septemlier- 100' garden row-:
anuary

Seed to Plani
transplants Days to Maturity Dep
21 to 35 Lettuce (head)-65 to 85 % to %
days days
Lettuce (leaf)-43 to 60
days
Endive-80 to 95 days

PT. A TTPTTMf- TTCQT A f'T"


;ilizer may be applied broadcast on po
k soils at time of planting.





Soil Type Fertilizer* Acre
Marl** .............---........ 6-8-6 550
Muck .......................... 0-12-12 500
Peatt .... ...- 0-8-24, 0-10-20 500
Light Sand ..... 6-8-6, 6-6-8 1,500
Dark Sand ................ 6-8-6, 6-6-8 1,100
A 4-8-8 may be used in place of 6-8-6 provided equivalent amou:
of nitrogen are applied.
** Apply 0-12-12 at 300-500 pounds per acre on marl soils wl
cyanamid is used for control of sclerotinia.
t On virgin peat use 0-8-24 or 0-10-20, gradually changing (
crops) to 0-12-12, then to 0-15-5, depending on crop.
Lettuce grown on sandy soils should be sid
dressed at least twice during the growing seas(
-!1, 1 A\ 4-- 1 In r f n_-P -4-H-. r-F _- -n-A-


trate of potash.
The following may b
Copper sulfate at 25
and muck soils; mang
pounds per acre on mi
soils with pH of 6.0 o
borax on peat and muc


needed for specific soil,
)unds per acre on pe;
ese sulfate at 25 to i
k, peat, marl and sanc
higher; zinc sulfate ar
soils each at the rate o


When a deficiency of manganese develops a
ter planting, it may be corrected by sprayir
with 2 pounds of manganese sulfate per 100 ga
Ions of water per acre. To correct boron del
ciency on growing plants apply 2 pounds of bora
per 100 gallons of water in a similar way.
In Everglades Area, soil pH above 6.0 is n
recommended. To lower pH, apply 300-400 pount
of sulfur for every 0.1 unit above 6.0.


SEEDBED DISEASES AND COI


rTRl.S I


1. Fumigation.-One pound of methyl bromit
applied to 50 sq. ft. of seedbed area will contr
weeds and nematodes as well as damping-ol
Soil should be prepared and ready for plantir
before fumigating.
2. Seed Treatment.-If seedbed fumigation
not practiced, one of the following may be ben
ficial:
Ounces per Teaspoonfu
Material 100 Lbs. Seed per Lb. See<
Thiram (50%) ...................... 4
or
Spergon (48%) .... ......... 8 1
.3.,: Post-emergeltce Treatment.-, ;
Spergon (48%)-3 lbs. per 10: gallons water,: :
or
Thiram (50%)-1 lb. per 100 gallons water. <., .:- .




begin application soon after plants emerge and
at at 4- to 7-day intervals, depending on
other. Apply about 15 gallons as a soil drench
1,200 sq. ft. of bed area. Increase amount
)lants become larger. These materials are
patible with DDT.

INSECTS AND CONTROLS

Sprays (Amt.
ts Dusts per 100 Gals.) Baits
orms Toxaphene Toxaphene wet- 2-2%%
5% table 3 lbs. Toxa-
40% or equiv. phene
wheat-
bran
ed cu- Chlordane Chlordane wet-
nber 5% table, 2 lbs.
etles 50% or equiv.
DDT 5% DDT wettable,
2 lbs. 50% or
equiv.
is bugs Chlordane Chlordane wet-
5% table, 2 lbs.
50% or equiv.
ds Parathion Parathion wet-
1% table, 1 lb.
15% or equiv.


40O
worms Apply 5 lbs. actual
Mole or heptachlor pe
:kets Distribute evenly
disk well. Muck
after disking.


)o not use
30 days an


ir equiv.
rdane or 3 lbs. aldrin
cre before planting.
rer soil surface and
dils should be rolled


toxaphene and chlordar
i parathion later than :
TEPP can be used 24 hc

and their residues are po


e later


Toxaphene will in
rnvohana ulnfil nlI


f packages.
ure seedlings.
nta nap 10 +n- 1


)o not ap-
Alrra ral1


FIELD DISEASES AND CONTROLS
VNY MILDEW and ALTERNARIA LEAF SPOT

bam-2 qts. plus 8/4 lb. zinc sulfate (36o%)
00 gallons of water.
ieb-2 lbs. per 100 gallons of water.




SCLEROTINIA
Rotation will help in the control of this disease
Cyanamid, applied at the rate of 500-700 pound
per acre 10 days before planting, is recommended,
for marl soil. On sandy soils apply 750-1,00
pounds of cyanamid 30 days before planting. Dis
tribute the material evenly over the surface an,
disk into the soil. Note.-These amounts of cy
anamid will supply most of the nitrogen for
crop in a normal season.

OTHER DISORDERS
TIPBURN
Environmental conditions that cause rapid, suc
culent growth favor the development of tipburr
No absolute control available. To reduce incident
of tipburn, do not fertilize excessively, especially:
with nitrogenous materials, use irrigation wate
sparingly when the heads approach maturity ani
plant recommended varieties.

BOLTING
Premature seeding may take place if the plant
have been subjected at any stage of growth t
relatively high temperatures for a considerable
period of-time. Varieties are being developed fo
resistance to premature seeding. Since lettuce ii
the seedling stage may be affected, planting
should be made after onset of cool weather.




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