Title: Primary evaluation of pre- and post emergence herbicides in vegetable and field crops.
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 Material Information
Title: Primary evaluation of pre- and post emergence herbicides in vegetable and field crops.
Physical Description: Serial
Publisher: Everglades Experiment Station.
Publication Date: 1959
 Record Information
Bibliographic ID: UF00076888
Volume ID: VID00003
Source Institution: University of Florida
Holding Location: University of Florida
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Resource Identifier: oclc - 166140809

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Everglades Station Mimeo Report 60-7


PRIMARY EVALUATION OF PRE- AND POST EMERGENCE APPLIED HERBICIDES IN
VEGETABLE AND FIELD CROPS SPRING, 1959 1/

J.R. Orsenigo /

Summary: Forty-eight herbicides were applied in 92 non-replicated treatments
pre-emergence or post emergence to 28 vegetable and field crops on
organic soil. Crop tolerance was greater and weed control poorer with granular
than with liquid formulations of the 15 herbicides compared. CDAA and CDEC
performed similarly regardless of formulation; and granular amiben and dinoben
provided better weed control than the respective liquid formulations. Dow
M-1329 should be evaluated further.
DAC-893 was the most promising new pre-emergence herbici"f tested
and satisfactory early weed control accompanied tolerance by many crops. Fur-
ther evaluation is contemplated.
The overall performance of the standard pre-emergence treatments,
CDAA (4 Ib/A) or CDEC (4 lb/A), was superior to all other treatments.
More crops were tolerant to dalapon and CP 9703 than to other post
emergence applied chemicals. Certain post-emergence-herbicide/crop combina-
tions warrant further investigation, especially in directionally applied
treatments. Rice was notably tolerant to post emergence applications of
FW-734 at rates which controlled practically all grass and broadleaf weeds.


Number of experiment: E 32.59
Location: EES, Field 1 E 4
Soil type: Okeelanta peaty muck
Cultural operations:" .
Field preparation: 10 April 1959
Field fitting: 20 April '
Field fitting: 27 April ...
Fertilization: 27 April 1959 (400 lb/A, 0-10-20) '
Fitting and rolling: 27 April
Crops planted, Group I: 27 April 1959 /
Fitting and rolling, Group II: 29 April
Crops planted, Group II: 29 April 1959
Routine fungicide-insecticide applications were made weekly or more
frequently when required.

Design: Non-replicated single treatment plots. Vegetable (18 or 24 test
varieties) and field (8 varieties) crops were planted in north-south
rows. Herbicide-treated strips (6 ft. wide by 150 ft. long) traversed the
crop rows in an east-west direction. Handweeded and unweeded controls were
interspersed at intervals.

1. This tabulation of the comparative performance of commercial and experi-
mental herbicides under the conditions of the Florida Everglades, Spring,
1959, was prepared for herbicide researchers and industry. The data
herein neither constitute nor imply recommendation of any herbicide for
any usage.

2. Assistant horticulturist, University of Florida Everglades Experiment
Station, Belle Glade, Florida.


1 December 1959









Description of test crops: Not all crops attained sufficient stand or growth
to permit satisfactory evaluation. Crops for
which data were taken are listed in Table 1.

Description of weed growth: The pre-emergence treatments were applied prior
to weed emergence but germination of both annual
grass and broadleaf weed seed had commenced. Weeds which werecpresent in the
post emergence plots at time of application were:
Stickerweed, Amaranthus spinosus; 8 to 15 in. tall.
Crabgrass, Digitaria sp.; 6 to 10 in. tall with 3-4 tillers.
Weeds of lesser importance were:
Purslane, Portulaca oleraceae; to 4 in. tall, scarce.
Goosegrass, Eleusine indica; to 3 in. tall, scarce.
Nutgrass, Cyperus sp.; widely scattered.

Description of herbicidal treatments: The herbicides, formulations and
suppliers are listed in Table 2.
Rates of herbicide application are given in the data tables in lb/A active
ingredient or acid equivalent, whichever is appropriate.

The pre-emergence applications were made broadcast to the soil surface
with experimental tractor spray equipment applying 62 gpa of carrier solution
at 20 psi and a tractor speed of 2 mph. The brush boom was equipped double
nozzle with "Tee-Jet" 8003 tips.

Granular herbicide formulations were applied broadcast to the soil sur-
face with a tractor-mounted experimental rotary-disc applicator.

The post emergence applications were made with the same equipment and
application details except that the herbicidal solutions were applied as broad-
cast topical sprays over crops and weeds.


Dates of herbicide application
Pre-emergence, Group I:



Pre-emergence, Group II:
Post emergence, Group I:
Post emergence,Group II:


Surface soil moisture at time
Pre-emergence, Group I:


Pre-emergence, Group II:


28 April 1959 (granular from 06:15 until
08:00 AM, no wind) (Liquid from 09:30
until 11:15 AM, light air to light breeze,
drift insignificant.)
30 April 1959 (06:45 until 09:15 AM, no wind)
22 May 1959 (06:30 until 07:10 AM, light air)
22 May 1959 (07:15 until 08:15 AM) light air to
light breeze, drift insignificant.

of herbicide application:
0 to in. depth 70%
2 to 1 in. depth 110b


0 to j in. depth -
i to 1 in. depth -


35%
55%


(NB. Field capacity approximately 160%)









Rainfall data: Total accumulated rainfall (plus supplemental irrigation*)
for week after application indicated.

Time after Pre-emergence Post
application Group I Group II emergence
1 week 0.51* in. 0.55* in. 2.75 in.
2 0.55 2.38 2.91
3 4.49 5.26 3.17
4 5.29 5.99 -
5 8.03 8.06
6 8.33 8.45

Method of evaluation: Both handweeded and unweeded control strips were inter-
spersed at intervals among the herbicide strips.
Visual evaluations of crop stand and tolerance were taken at three weeks
after pre-emergence treatment and at 10 days after post emergence herbicide
application. The evaluations were made on a 1-9 rating scale based upon the
handweeded and unweeded controls and are reported here as percentages of these
comparative standards. Superior herbicide treatments were evaluated a second
time at 6 weeks (pre-emergence) and three weeks (post emergence) after appli-
cation.

Experimental results: The results are given only as non-interpreted tabular
data. Comments concerning the evaluations are given
below.

Comparison of pre-emergence applied granular and liquid formulations,
Group I:

Generally, granular formulations were less harmful to creps and were
less effective herbicidally than liquid formulations. The loss of weed con-
trol did not appear to be compensated for, economically or practically, by
increased crop tolerance. Granular and liquid formulations of CDAA and CDEC,
the outstanding herbicides, performed similarly. CDAA and CDEC were the only
herbicides which provided 6-weeks weed control. Longer lasting weed control
was obtained with granular amiben and dinoben than with liquid formulations.
Dow M-1329 should be investigated further.

Crop stand and tolerance data are given in Tables 3, 4, 5, 6, 7, 8, and
10. Weed control performance is reported in Tables 9 and 11.

Comparison of pre-emergence applied herbicides, Group II:

The standard herbicide treatments, CDAA and CDEC, provided the best
overall crop tolerance and weed control performance and maintained effective
weed control for 6 weeks. The addition of glycerine (5* v/v) to CDEC, CIPC
and 2,4-D did not influence greatly either crop tolerance or weed control.
Of the newer herbicides, only DAC-893 was outstanding in crop tolerance and
early weed control. Advanced testing is contemplated.

Tables 12, 13, 14, 15, 16, and 18 report crop response and Tables 17 and
19 tabulate weed control performance.








Comparison of post emergence applied herbicides, Group I and II:

Dalapon and CP 9703 provided effective grass weed control and several
crops were highly tolerant of both chemicals, i.e., snapbean, Chinese cabbage,
carrot, leaf crops, pepper and tomato. CMPP effectively controlled broad-
leaf weeds but no crops were tolerant to the rate used.

Herbicides which controlled both grass and broadleaf weeds are listed
below with tolerant crops in parentheses: FB-2 (none), endothal (none),
atrazine (corn, sorghum), CP 10543 (carrot, field corn), FW-734 (rice highly;
Chinese cabbage partially), NIA 4512 (carrot and Alabama crowder), NIA 4556
(carrot), and NIA 4562 (carrot).

Crop stand and tolerance observations are given in Tables 20, 21, 22, 23,
24, 25, 27 and 28. Weed control performance is given in Tables 26 and 29.



Acknowledgements: This evaluation was supported in part by a grant-in-aid
from the Niagara Chemical Division. Herbicides were
furnished by the suppliers listed in the text. Vegetable and field crop seed
were provided by The Kilgore Seed Company, Agricultural Insecticide Company,
and the Agronomy Section, Everglades Experiment Station. Mr. William R. Alston
assisted in installation and maintenance. Pesticidal chemicals for maintenance
of the experiment were provided by: E.I. duPont de Nemours, Geigy Agricultural
Chemicals, General Chemical division, Rohm & Haas, Stauffer Chemical, and
certain cooperating growers.







EES/JRO 60-7
400 copies
1 December 1959










Table 1. Description of test crops:


Crops


Field corn
Sweet corn
Sorghum
Oat
Rice
Soybean
Snapbean, bush;
Snapbean, pole;
Lima bean
Southernpea

English peas
Kenaf
Pepper
Tomato
Ch. Cabbage
Cabbage
Broccoli
Radish 1
Radish 2

Carrot
Parsley
Cucumber
Romaine
Lettuce, leaf
Lettuce, head
Escarole
Endive


Variety

Corneli 54
R-8
Tracy
Seminole
CI-9016
Black Hawk
Bl. Valentine
Blue Lake
small seeded
Calif. Black Eye
Alabama Crowder
Little Marvel
BG 52-41
Florida Giant
Rutgers
Michihli
Badger Market
Waltham 29
Early Scarlet Globe
Scarlet Globe
White Turnip
Chantenay
Triple curled
Marketer
A&C Improved
BS Simpson
Great Lakes
F.H. Batavian
Green-ribbed
green-curled


Development at post emergence treatment*


20-24
18-20
12-15
8-12
8-12
10-12
12-15
10-14
8-12
8-10
10-14
8-10
12-15


in.
in.
in.
in.
in.
in.
in.
in.
in.
in.
in.
in.
in.


tall,
tall,
tall,
tall,
tall,
tall,
tall,
tall,
tall,
tall,
tall,
tall.
tall


6-7 leaves.
6-7 leaves.
4-5 leaves.
4 leaves
3-4 leaves
2-4 trifol.
2-4 trifol.
3-4 trifol.
2-4 trifol.
2-3 trifol.
2-3 trifol.


leaves
leaves
leaves
leaves
leaves
leaves


to 2 in. tall, slt true leaves
4-6 in. tall, two leaflets
10-12 in. tall
to 2 in. tall, 1-2 true leaves
to 3 in. tall, second true leaf
10-12 in., 3/8 in. roots.

10 in. tall, 3/8 in. roots.
11-3 in. tall, second true leaf
to 3/4 in. tall, first true leaf
to 15 in. tall
1-3 in. tall, second true leaf
to 2 in. tall, third leaf
2-3 in. tall, 2-3 true leaves
2-4 in. tall, 2-3 true leaves

to 3 in. tall, third leaf


* Average development of Groups I and II.

NB.: At time of pre-emergence applications germination of some crop seed had
commenced but none of the crops were emerged. Planting depth and rate
were appropriate to each of the crops.









Table 2. Herbicides, formulations and suppliers.


amiben:
CDAA:

CDEC:

CIPC:
dalapon:
dinoben:
diuron:
DNBP:

EPTC:

HCA:
simazin:

atrazine:

2,4-D:
silvex:

M-1481:


Pre-emergence, Group I; granular materials

3-amino-2,5-dichlorobenzoic acid, 10% granular, Amchem M-728
2-chloro-N,N-diallylacetamide, 10% granular, Monsanto "CDAA
granular"
2-chloroallyl diethyldithiocarbamate, 10% granular, Monsanto
"CDEC granular"
isopropyl N-(3-chlorophenyl) carbamate, 20% granular FASCO
2,2-dichloropropionic acid, 10% a.e. granular, Dow M-1501
3-nitrm-2,5-dichlorobenzoic acid, 10% granular, Amchem M-622
3-(3,4-dichlorophenyl)-l,l-dimethylurea, 2% granular, duPont
4,6-dinitro o sec butylphenol formulation, 20% granular,
Dow M-1498
ethyl N,N-di-n-propylthiolcarbamate, 5% granular,Stauffer
"Eptam 5G"
hexachloroacetone, 15% granular, General
2-chloro-4,6-bis(ethylamino)-s-triazine, 4% granular, Geigy
Simazin 4G
2-chloro-4-ethylamino-6-isopropylamino-s-triazine, 4% granular,
Geigy Atrazine 4G
2,4-dichlorophenoxyacetic acid, 10% granular, Amchem M-552A
2-(2,4,5-trichlorophenoxy) propionic acid formulation, 20% a.e.
granular, Dow M-1499
0-2,4-dichlorophenyl 0-methyl isopropylphosphoramidothioate,
8% grenular formulation, Dow M-1481

Pre-emergence, Group I; aqueous carrier materials


amiben plus sodium carbonate: amnben acid, as above (Amchem M-629) plus excess
sodium carbonate
amiben: amtben acid, as above, Amchem M-729
CDAA: CDAA, as above, Monsanto "Randox"
CDAA-T: undisclosed, formulation of Monsanto "Randox T"
CDAA-solventleses' CDAA, as above, without solvent, Monsanto
CDEC: CDEC, as above, Monsanto "Vegadex"
CDEC-solventless: CDEC, as above, without solvent, Monsanto
CIPC: CIPC, as above, Colombia-Southern 3-C1-CIPC
dalapon: sodium salt of 2,2-dichloropropionic acid, Dowpon"
dinoben: 3-nitro-2,5-dichlorobenzoic acid formulation, Amchem M-460
diuron: diuron, as above, duPont "Karmex DW"
DNBP: alkalolamine salts of 4,6-dinitro o sec butylphenol, Dow
"Premerge"
EPTC: EPTC, as above, Stauffer "Eptam"
HCA: HCA, as above, General "HCA concentrate, 50% EC"
simazin: simazin, as above, Geigy "Simazine 50W"
atrazine: atrazine, as above, Geigy "Atrazine 50W"
2,4-D amine: diethanolamine salt of 2,4-D, Amchem "Weedar 64"
silvex: propylene glycol butyl ether esters of silvex, Dow "Kuron"
M-1329: 0-2,4-dichlorophenyl 0-methyl isopropylphosphoramidothioate,
Dow M-1329.









Table 2, continued. Herbicides, formulations and suppliers.

Pre-emergence, Group II, aqueous carrier materials


CDAA: as above
CDEC: as above
CDEC plus glycerine:-' as above plus 5% U.S.P. glycerine v/v
CIPC plus glycerine: as above plus 5% U.S.P. glycerine v/v
"Falone": tris-(2,4-dichlorophenoxyethyl)phosphite, Naugatuck
2,4-D amine: as above
2,4-D amine invert plus diesel oil: amine salt of 2,4-dichlorophenoxy'.
;.acetic acid as Amchem M-568 plus 10 gpa diesel oil
2,4-D amine plus silicone: as above plus 0.5% "Siliclad" v/v
2,4-D amine plus glycerine: as above
MCPA: 2-methyl-4-chlorophenoxyacetic acid, Amchem "Weedar MCP"
4-(2,4-DB): dimethylamine salt of 4-(2,4-dichlorophenoxy) butyric acid,
Amchem Butyrac 118
CMPP: amine salt of a-(4-chloro-2-methylphenoxy)propionic acid,
Upjohn U-14282
Fenac S: sodium salt of 2,3,6-trichlorophenylacetic acid, Amchem
Fenac M-673S
Fenac amide: 2,3,6-trichlorophenylacetamide, Amchem Fenac M-674
Fenac LVE: low volatile ester of 2,3,6-trichlorophenylacetic acid,
Hooker, HRS 203
F 3520: dimethylamine salt of 2-chloro-4-fluorophenoxyacetic acid*
F 4038: sodium sulfate of 2-chloro-4-fluorophenxoy ethanol*
F 5076: sodium sulfate of 4-(2-chloro-4-fluorophenoxy)-butanol** -
F 5087: dimethylamine salt of 4-(2-chloro-4-fluorophenoxy)-butyric acid
M-15336: 2,3-dichloroallyl id-isopropylthiocarbamate, Monsanto
G-444E: 2-chloro-4,6-bis-( diethylamino)-s-triazine, Geigy
G-30026: 2-chloro-4-isopylamino-6-methylamint-s-triazine, Geigy
atrazine: 2-chloro-4-ethylamino-6-isopropylamino-s-triazine, Geigy
M-31435: 2-methoxy-4, 6-bis-(isopropylamino)-s-triazine, Geigy
PCP: pentachlorophenol, formulated, Fasco "Liquid-Flame"
PCP plus diesel oil: as above, plus 10 gpa diesel oil.
DAC-893: dimethyl 2,3,5,6-tetrachloroterephthalate, Diamond
GC-2603: fenuron-TCA, General
GC-2996: nonuron-TCA, General
"Zytron": dalapon ester plus silvex (2:J Ib/gal), Dow
dalapon: as above
monuron: 3-(p-chlorophenyl)-l,l-dimethyl urea, duPont


* General Chemical.









Table 2, continued. Herbicides, formulations and suppliers


Post emergence, Group I, aqueous carrier materials


CDAA:
CP-861-2:
CDEC:
CP-10543:
CMPP:


as above
classified, Monsanto
as above
3-(3,4-dichlorophenyl)-l-isopropyl-l-(2 propynyl) urea, Monsanto
as above

Post emergence, Group II, aqueous carrier materials


dalapon:
4-(2,4-DB):
"Zytron":
ACP-M-847:
CP 9703:
atrazine:
FW-450:
FW-734:
FB-2:
NIA 4512:
NIA 4556:
NIA 4562:
endothal:


as above
as above
as above
classified, Amchem
(2-(sodiumsulfo)ethyl 2,2-dichloropropionate), Monsanto
as above
sodium 2,3-dichloroisobutyrate, Rohm & Haas
classified, Rohm & Haas
1:1' ethylene-2:2' dipyridylium dibromide, Plant Protection
N-(3-chloro-4-methylphenyl)-2-methylpentanamide, Niagara "Solen"
N-(3,4-dichlorophenyl)methylacrylamide, Niagara "Dicryl"
N-(3,4-dichlorophenyl)-2-methylpentanamide, Niagara "Karsil"
3,6-endoxohexahydrophthallic acid, Pennsalt "Endothal"








Table 3. The stand and tolerance response of field corn, sweet corn, oat,
sorghum, and rice to pre-emergence application of granular and
liquid formulations of several herbicides. Values are given as
percentages of untreated controls at three weeks after applica-
tion. Rates of application are in Ib/A active ingredient.

F. corn Sw. corn Oat Sorghum Rice
Herbicide, Rate/Acre Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.
Unweeded control 100% 100 0 100% 100 100% 100% 100 100% 100% 1005
Hand weeded 100 100 100 100 100 100 100 100 100 100

Granular formulations

amiben, 3.9 100 100 100 100 100 100 87 87 75 87
dinoben, 3.9 100 100 100 100 75 75 87 75 87 87
CDAA, 4.2 100 100 87 100 12 12 100 87 87 100
CDEC, 3.2 100 100 75 87 75 87 100 100 100 100
CIPC, 8.4 100 100 100 100 87 100 87 100 87 100
dalapon, 3.9 100 100 87 100 75 87 100 87 75 87
diuron, 1.1 87 100 87 100 100 87 100 100 87 87
DNBP, 10.5 100 100 87 100 87 87 100 87 87 100
EPTC, 3, surface 100 100 100 100 87 87 12 75 87 100
EPTC, 3, incorp. 75 87 87 87 50 75 37 62 87 87
HCA, 7.2 100 87 100 87 62 75 100 75 50 75
simazin, 2.8 100 100 100 100 87 87 100 87 100 87
atrazine, 2.7 100 100 87 100 62 87 100 87 87 87
2,4-D amine, 1.0 100 100 100 100 87 87 100 87 75 87
silvex, 2.1 100 87 100 100 87 87 100 87 87 75
M-1481, 2.5 100 100 100 100 75 87 100 100 87 87

Liquid formulations


amiben acid, 4 plus
sodium carbonate 100 100
amiben, 4 100 100
dinoben, 4 100 100
CDAA, 4 100 100
CDAA-T, 4 100 100
CDAA, 4, solventless 100 100
CDEC, 4 100 100
CDEC, 4, solventless 100 100
CIPC, 8 100 100
dalapon, 4 100 100
diuron, 1.1 100 87
DNEP, 10.5 100 100
EPTC, 3, surface 100 100
EPTC, 3, incorp. 100 100
HCA, 7.2 100 100
simazin, 2.8 100 100
atrazine, 2.8 100 100
2,4-D aminc, 1 100 100
silvex, 2 100 100
M-1329, 16 100 100


87 100
100 100
87 100
87 100
87 100
87 100
87 100
87 100
87 87
75 87
50 87
62 87
87 100
87 100
100 100
87 100oo
100 100
87 100
100 100
87 100


75
75
87
62
50
50
87
87
75
75
87
100
75
50
87
75
62
87
87
100


87 87
87 75
87 75
100 100
87 100
87 87
75 75
87 75
100 87
100 87
87 75
87 100
62 50
37 50
100 87
loo 87
100 87
87 100
100 100
87 87
100 100


75
87
75
87
87
87
87
87
87
12
87
75
75
62
75
87
100
75
87
75









Table 4. The stand and tolerance response of snap bean (bush and pole), lima
bean, and southernpea (California Blackeye and Alabama Crowder) to
pre-emergence application of granular and liquid formulations of
several herbicides. Values are given as percentages of untreated
controls at three weeks after application. Rates of application
are in Ib/A active ingredient.

Bush bean Pole bean Lima bean BlackEye Crowder
Herbicide, Rate/Acre Std. Tol. Std. To. Std. Tol. Std. Tol. Std. Tol.
Unweeded control 100% 1 100 100% 100 0 1000 100% 100% 100% 100%
Hand weeded 100 100 100 100 100 100 100 100 100 100


amiben, 3.9
dinoben, 3.9
CDAA, 4.2
CDEC, 3.2
CIPC, 8.4
dalapon, 3.9
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.7
2,4-D amine, 1
silvex, 2.1
M-1481, 2.5


87 87
87 100
87 87
100 100
87 87
87 75
87 100
100 100
75 87
75 100oo
100 87
87 100
75 100
87 87
87 87
75 87


Granular formulations


87 87
100 100
87 87
100 100
100 100
87 87
87 87
100 87
87 87
87 87
100 100
87 100
87 100
100 100
87 75
87 87


100 100
87 100
87 87
87 87
87 87
75 75
87 87
87 100
87 100oo
75 87
100 87
87 100
87 100
100 100
62 75
87 100


amiben acid, 4 plus
sodium carbonate
amiben, 4
dinoben, 4
CDAA, 4
CDAA-T, 4
CDAA, 4, solventless
CDEC, 4
CDEC, 4, solventless
CIPC, 8
dalapon, 4
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.8
2,4-D amine, 1
silvex, 2
M-1329, 16


Liquid formulations


75 87
87 87
75 87
37 75
62 75
87 87
87 87
87 100
100 100
87 75
87 87
75 87
87 100
75 87
100 100
12 12
12 12
87 87
75 75
87 100


87 87
75 87
100 100
87 100
87 87
87 87
100 100
100oo 87
87 100
87 87
87 100
75 100
87 100
75 87
100 100
100 75
100 87
87 87
75 87
87 87


62 75
75 75
100 87
87 100
75 87
75 87
87 100
87 87
87 100
87 87
87 100
87 87
87 100
75 87
100 100
75 75
87 75
87 75
62 75
100 87


100 100
87 100oo
87 100
87 100
37 62
50 62
50 75
50 100
87 100
100 87
75 87
75 75
100 87
87 87
62 87
62 87


100 100
100 100
100 100
87 100
100 100
87 75
87 87
100 100
100 100
100 100
100 100
loo 87
100 87
100 87
87 100
87 100


62 75
37 75
50 87
62 87
62 100
75 100
87 87
75 100
50 87
75 75
62 87
62 87
87 75
62 75
50 87
87 75
87 87
75 75
62 87
62 75


87 100
75 100
100 100
100 100
100 100
100 100
100 100
100 100
100 100
100 100
87 100
100 100
100 100
87 75
100 87
87 87
100 100
100 87
100 100
100 87


---


I








Table 5. The stand and tolerance response of soybean, English peas, kenaf,
tomato and pepper to pre-emergence application of granular and
liquid formulations of several herbicides. Values are given as
percentages of untreated controls at three weeks after applica-
tions. Rates of application are in Ib/A active ingredient.

Soybean Eng. peas Kenaf Tomato Pepper
Herbicide, Rate/Acre Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.
Unweeded control 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
Handweeded 100 100 100 100 100 100 100 100 100 100


amiben, 3.9
dinoben, 3.9
CDAA, 4.2
CDEC, 3.2
CIPC, 8.4
dalapon, 3.9
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.7
2,4-D amine, 1
silvex, 2.1
M-1481, 2.5


100 100
100 100
100 100
100 100
100 100
87 37
87 100
87 100
87 87
100 87
87 75
87 87
75 87
87 87
87 87
87 75


Granular formulations
87 100 87 100
87 100 37 75
100 100oo 87 87
100 100 100 100
87 62 87 75
87 87 62 62
50 75 50 62
37 87 87 87
87 87 100 87
62 75 87 87
50 62 87 75
75 50 87 75
87 75 75 75
87 75 100 87
87 75 75 75
37 75 50 75


amiben acid, 4 plus
sodium carbonate 100 87
amiben, 4 100 100
dinoben, 4 87 87
CDAA, 4 100 87
CDAA-T, 4 100 87
CDAA, 4, solventless 100 87
CDEC, 4 87 100
CDEC, 4, solventless 100 100
CIPC, 8 100 100
dalapon, 4 75 50
diuron, 1.1 100 100
DNBP, 10.5 100 87
EPTC, 3, surface 100 87
EPTC, 3, incorp. 100 75
HCA, 7.2 87 50
simazin, 2.8 62 37
atrazine, 2.8 87 75
2,4-D amine, 1 87 75
silvex, 2 87 75
M-1329, 16 100 75


Liquid formulations


62 75
75 75
75 75
50 75
62 75
62 75
50 87
50 87
62 87
87 50
87 87
87 87
50 87
75 87
-- --


25 37
37 37
75 37
87 87
62 75
75 75
87 62
62 75
75 87
75 87
50 75
75 75
62 75
75 75
87 87
75 87
62 62
100oo 75
87 75
87 87


87 100
87 87
87 62
75 87
87 75
75 87
75 87
0 0
87 87
75 87
75 75
75 75
0 0
87 75
25 25
62 50


75 87
87 100
87 100
87 100
87 87
87 100oo
50 87
75 87
87 75
50 75
75 87
75 75
62 50
87 87
75 75
75 87


75 37
25 37
75 62
50 75
37 50
75 62
75 62
75 50
62 50
75 62
75 75
0 o
100 75
87 62
87 62
25 25
50 62
50 37
50 50
75 62


87 87
87 87
75 87
87 87
87 87
87 87
87 87
87 75
87 87
87 loo
87 100
50 50
87 87
62 75
87 100
87 75
75 75
75 87
87 87
87 87


__









Table 6. The stand and tolerance response of broccoli, cabbage, Chinese
cabbage, and two varieties of radish to pre-emergence application
of granular and liquid formulations of several herbicides. Values
are given as percentages of untreated controls at three weeks
after application. Rates of application are in 1b/A active
ingredient.
Broccoli Cabbage C.Cabbage Radish 1 Radish 2
Herbicide, Rate/Acre Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.
Unweeded control 100% 100l 100% 100 100% 100% 1005 100% 100I 100%
Hand weeded 100 100 100 100 100 100 100 100 100 100
Granular formulations


amiben, 3.9
dinoben, 3.9
CDAA, 4.2
CDEC, 3.2
CIPC, 8.4
dalapon, 3.9
diuron, 1.1
DNBP, 10.5
EFTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.7
2,4-D amine, 1
silvex, 2.1
M-1481, 2.5


0 0 0 0
75 75 12 12
100 100oo 75 87
100 100 100 100
75 87 87 87
87 87 100 100
37 62 50 62
0 0 0 0
37 50 87 37
87 62 75 37
87 87 100 87
50 62 75 62
0 0 12 12
50 62 75 87
37 62 50 50
75 87 87 75


12 50
37 75
75 87
75 87
75 75
87 100oo
87 100
12 12
87 50
87 62
75 75
87 75
37 37
75 62
37 62
75 62


50 75
75 50
100 100
100 100
100oo 87
87 87
75 87
25 37
87 87
87 87
87 87
87 75
62 62
75 87
62 62
75 75


50 75
75 50
100 100
87 100oo
100 87
87 87
100 87
37 37
100 100
75 75
100 100
87 87
75 62
87 87
62 50
87 87


amiben acid, 4 plus
sodium carbonate 37 37
amiben, 4 37 50
dinoben, 4 37 50
CDAA, 4 87 87
CDAA-T, 4 37 50
CDAA, 4, solventless 87 75
CDEC, 4 75 87
CDEC, 4, solventless 87 75
CIPC, 8 75 37
dalapon, 4 87 87
diuron, 1.1 75 50
DNBP, 10.5 0 0
EFTC, 3, surface 87 62
EPTC, 3, incorp. 87 62
HCA, 7.2 87 87
simazin, 2.8 62 25
atrazine, 2.8 37 25
2,4-D amine, 1 0 0
silvex, 2 25 62
M-1329, 16 75 75


Liquid formulations


12 12
12 12
50 50
87 62
87 62
87 75
87 87
87 75
75 75
87 87
50 37
0 0
87 75
75 62
75 75
0 0
0 0
37 50
62 50
75 87


12 62
25 62
50 62
87 50
87 50
87 50
87 75
62 75
75 37
75 50
62 50
12 12
87 62
75 50
75 87
50 37
37 25
52 75
50 75
87 62


37 50
37 50
62 37
87 87
87 75
87 75
87 87
87 87
75 62
87 62
87 75
50 37
87 62
87 62
87 87
87 50
75 50
75 75
87 75
87 87


50 50
50 50
62 62
87 100
87 100
87 0oo
87 75
75 75
87 75
87 62
87 75
62 50
87 62
75 62
87 87
87 50
87 50
62 75
62 62
100 87









Table 7. The stand and tolerance response of carrot, parsley, cucumber,
and onion to pre-emergence applications of granular and liquid
formulations of several herbicides. Values are given as per-
centages of untreated controls at three weeks after applica-
tion. Rates of application are in lb/A active ingredient.


Herbicide, Rate/A
Unweeded control
Hand weeded


Carrot
Std. Tol.
100% 100%
100 100


Parsley Cucumber Onion
Std. Tol. Std. Tol. Std. Tol.
100 100 100 100 100% 0 100%
100 100 100 100 100 100


amiben, 3.9
dinoben, 3.9
CDAA, 4.2
CDEC, 3.2
CIPC, 8.4
dalapon, 3.9
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.7
2,4-D amine, 1
silvex, 2.1
M-1481, 2.5


67
100
100
87
100
100
100
25
100
100
87
87
62
75
50
87


100
100
87
87
100
100
100
37
100
100
100
87
62
75
62
100


Granular
100 100
87 87
62 87
75 87
87 87
75 87
87 87
0 0
87 87
75 75
87 87
87 75
75 62
75 62
62 62
87 75


formulations
^ "


0
12
100
100
100
100
100
0
87
75
100
87
87
100
37
100


0
25
100
100
100
100
100
0
87
75
100
100
75
87
37
87


amiben ac
sodium
amiben, 4
dinoben,
CDAA, 4
CDAA, -T,
CDAA, 4,
CDEC, 4
CDEC, 4,
CIPC, 8
dalapon,
diuron, 1
DNBP, 10.
EPTC, 3,
EPTC, 3,
HCA, 7.2
simazin,
atrazine,
2,4-D amj
silvex,
M-1329,


lid, 4 plus


carbonate 100
100
4 87
75
4 87
solventless87
87
solventless87
87
4 87
L.1 100
5 0
surface 100
incorp. 100
100
2.8 62
2.8 50
Lne, 1 87
2 87
L6 87


Liquid formulations


100
100
87
75
87
87
87
87
87
87
100
0
100
100
87
37
37
75
100
75


25
37
62
75
100
100
87
87
62
75
87
0
100
87
87
87
100
87
62
87


37
37
50
87
87
87
87
87
87
87
87
0
100
87
87
75
75
75
87
75


n


--


--







Table 8. The stand and tolerance response of endive, escarole, leaf and
head lettuce, and romaine to pre-emergence applications of
granular and liquid formulations of several herbicides. Values
are given as percentages of untreated controls at three weeks
after application. Rates of application are in Ib/A active
ingredient.

Endive Escarole Leaf let. Head let. Romaine
Herbicide, Rate/Acre Std. Tol. SEd. Tol. Std. Tol. Std. Tol. Std. Tol.
Unweeded control 100% 100 100% 100% 100 100% 100 100 100%
Hand weeded 100 100 100 100 100 100 100 100 100 100


amiben, 3.9
dinoben, 3.9
CDAA, 4.2
CDEC, 3.2
CIPC, 8.4
dalapon, 3.9
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.7
2,4-D amine, 1
silver, 2.1
M-1481, 2.5


12 12
12 25
87 100
87 100
loo 87
87 100
75 100
0 0
100 75
75 87
37 75
50 50
37 62
62 62
100 87
87 87


Granular formulations
0 0 12 12 0 0
12 12 0 0 12 12
75 87 87 87 87 87
87 100 75 87 62 75
87 87 75 87 87 87
87 100 87 100 87 100
75 100 37 87 87 100
0 0 0 0 0 0
87 87 37 37 25 25
62 87 0 0 62 37
75 87 62 87 87 87
37 62 62 87 50 75
25 50 37 25 37 25
50 75 50 62 62 75
100 87 75 87 62 62
75 75 62 75 75 75


Liquid formulations


amiben acid, 4 plus
sodium carbonate 25 25
amiben, 4 12 12
dinoben, 4 37 37
CDAA, 4 87 87
CDAA-T, 4 100 75
CDAA, 4, solventless 100 75
CDEC, 4 75 87
CDEC, 4, solventless 87 87
CIPC, 8 62 87
dalapon, 4 37 87
diuron, 1.1 62 75
DNBP, 10.5 0 0
EPTC, 3, surface 87 100
EPTC, 3, incorp. 87 87
HCA, 7.2 75 87
simazin, 2.8 0 0
atrazine, 2.8 0 0
2,4-D amine, 1 75 75
silvex, 2 75 75
M-1329, 16 37 62


25 37 50 75 75 75
0 0 62 75 62 50
0 0 50 62 75 62
50 75 62 62 75 75
50 75 25 50 62 75
62 87 62 62 75 75
87 87 75 87 75 87
87 87 87 87 75 87
62 75 37 62 62 62
87 87 87 87 87 87
75 87 50 75 37 62
0 0 0 0 0 0
87 100 75 75 75 87
75 87 75 75 62 75
75 75 75 87 87 75
0 0 0 0 0 0
0 0 0 0 0 0
62 75 87 87 50 37
62 75 87 87 75 62
62 62 12 12 12 12


0 0
o o
0 0
25 12
75 87
37 37
100 100
12 12
0 0
50 37
50 50
50 62
0 0
12 12
25 25
37 37
12 12


25 25
12 12
25 25
50 50
37 37
25 37
37 (I
62 75
62 75
50 62
37 62
o 0
25 37
50 37
62 75
0 0
0 0
12 12
50 62
0 0


Liquid formulations








Table 9. Grass and broadleaf weed stand and control at three weeks after appli-
cation of granular and liquid formulations of several herbicides.
Values are given as percentages of hand-weeded controls. Rates of
application are in Ib/A active ingredient.


Herbicide, Rate/Acre
Handweeded control


Grass weeds
Stand Control
o' o10O


Broadleaf weeds
Stand Control
o% 1005


amiben, 3.9
dinoben, 3.9
CDAA, 4.2
CDEC, 3.2
CIFC, 8.4
dalapon, 3.9
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.7
2,4-D amine, 1
silvex, 2.1
M-1481, 2.5


Granular formulations
0 100
12 87
0 100
25 75
25 75
25 75
87 12
12 87
12 87
12 87
75 25
12 75
12 75
50 37
25 75
25 62


amiben acid, 4 plus sodium
carbonate
amiben, 4
dinoben, 4
CDAA, 4
CDAA-T, 4
CDAA, 4, solventless
CDEC, 4
CDEC, 4, solventless
CIPC, 8
dalapon, 4
diuron, 1.1
DNBP, 10.5
EPTC, 3, surface
EPTC, 3, incorp.
HCA, 7.2
simazin, 2.8
atrazine, 2.8
2,4-D amine, 1
silver, 2
M-1329, 16


Liquid formulations


75
87
62
100
100
100
100
100
87
87
75
87
75
87
25
75
75
62
75
87


12
25
0
12
87
100
75
25
37
37
100
75
62
87
87
87


87
75
100
87
12
0
25
62
50
50
0
12
37
12
12
12


50
37
62
12
12
12
0
12
75
100
37
25
50
37
100
0
0
62
25
12


50
62
37
87
87
87
100
87
25
0
62
75
62
75
0
100
100
37
75
87









Tolerance of test crops to superior herbicidal treatments at six
weeks after pre-emergence application of granular and liquid
formulations of several herbicides. Values are given as
percentages of untreated controls. Rates of application are
in lb/A active ingredient.


Granular
CDAA
Crop 4.2


CDAA
4


Liquid Formulations
CDAA-T CDAA, 4 CDEC
4 solventless 4


CDEC, 4
Solventless


Field corn
Sweet corn
Oat
Sorghum
Rice
Bush bean
Pole bean
Lima bean
Black Eye
Crowder
Soybean
English peas
Kenaf
Tomato
Pepper
Broccoli
Cabbage
Chinese cabbage
Radish 1
Radish 2
Carrot
Parsley
Cucumber
Onion
Endive
Escarole
Leaf lettuce
Head lettuce
Romaine


Table 10.


100%
87
12
100
100
100
100
100
100
100
100
100
100
100
100
100
87
100
100
100
100
100
87
87
100
87
100
87
75


100%
100
75
1.00
100
87
87
100
100
87
100
87
100

100
100
100
100
100
100
100
87
87
87
87
75
100
100
87


100%
100
62
100
87
75
75
87
87
75
75
75
75
75
100
62
100
87
87
87
100
87
62
100
87
75
62
62
50


100%

37
300
75
100
100
75
100
iOO
100
87
87
87
100
100
75
87
100
87
87
100
87
75
100
100
87
87
87
75


100%

100
100
100
100
100
100
100
100
ioo



87
100
100
100
87
100
100
100
100
100
62

100
87
100
75
75


100oo
100
100
100
100
100
87
87
100
100
100

75
87
100
87
75
87
100
100
100
100
75

100
100
87
87
100











Grass and broadleaf weed control effectiveness of selected herbi-
cidal treatments at six weeks after pre-emergence application
of granular and liquid formulations of several herbicides. Values
are given as percentages of hand-weeded controls. Rates of
application are in Ib/A active ingredient.


Herbicide,


Grass weed
control
100%


Rate/Acre


Hand weeded


Broadleaf
Weed control
l00o


Granular formulations
CDAA, 4.2 87 100
CDEC, 3.2 0 87
amiben, 3.9 37 50
dinoben, 3.9 25 50

Liquid formulations
CDAA, 4 87 87
CDAA-T, 4 87 100
CDAA, 4, solventless 87 75
CDEC, 4 75 100
CDEC, 4, solventless 62 100
simazin, 2.8 0 100
atrazine, 2.8 0 100
M-1329, 16 62 50


Table 11.











Table 12. The stand and tolerance response of field corn, sweet corn, oat,
sorghum and rice to pre-emergence applied herbicides. Values
are given as percentages of untreated controls at three weeks
after application. Rates of application are Ib/A active
ingredient.


F. corn Sw. corn
Std. Tol. Std. Tol
o100 100o 100% 100
100 100 100 100


CDEC, 4 100 100 100 100
CDEC, 4 + glyc. 87 100 87 100
CIPC, 8 + glyc. 100 100 100 100
"Falone", 8 100 100 87 100
2,4-D, amine, 1 87 100 100 100
2,4-D amine invert, 1
+ diesel oil 100 100 50 75
2,4-D amine, 1 + sil. 100 100 100 100
2,4-D amine, 1 + glyc. 87 87 87 87
MCPA, 1 100 100 100 100
4-(2,4-DB), 1.5 100 87 100 100
CMPP, 1.5 100oo 87 100 87
Fenac S, 1.5 100 100 87 100
Fenac amide, 1.5 10O 87 100 100
Fenac LVE, 1.5 100 100 87 87
F 3520, 1.5 100 87 100 100
F 4038, 1.5 100 87 75 87
F 5076, 1.5 100 100 62 100
F 5087, 1.5 100 100 75 100
M-15336, 2, incorp. 100 100 87 100
G-444E, 4 87 87 100 100
G-30026, 4 100 87 87 87
atrazine, 4 87 100 100 87
G-31435, 4 87 100 87 100
PCP, 4 100 100 100 100
PCP, 4 + diesel oil 100 100 87 100
DAC-893, 15 100 100 87 100
GC=2603, 1.5 100 100 100 100
GC-2996, 1.5 100 100 100 100
"Zytron" (dalapon
ester, 4 + silvex, 1)100 100 100 100
dalapon, 4 +
monuron, 1 100 87 87 100


Oat Sorghum Rice
SStd. Tol. Std. Tol. Std. Tol.
S10oo 100o 100o 100% 1o0 100%
62 50 87 75 87 87
75 50 87 75 100 100
50 75 87 75 75 75
57 75 100 87 87 100
100 100 100 100 87 87
100 100 100 100 62 62


87 87 87 87
87 62 87 75
75 62 87 75
50 62 100 75
62 62 100 87
75 100 100 87
100 100 87 100
100 100 87 100
100 100 100 100
87 87 87 75
100 100 100 87
100 100 87 87
100 100 87 87
12 75 25 75
50 75 87 100
37 62 87 87
87 62 100 87
75 75 100 75
75 100 100 100
87 100 100 100
87 100 87 100
oo00 87 100 87
0oo 75 100 87

25 37 100 87

75 87 100 100


62 62
37 62
50 75
62 75
75 75
62 75
50 87
62 87
62 87
t5 87
1io 87
75 62
87 75
62 87
62 75
62 62
25 62
100oo 75
87 87
87 100
o10 87
100oo 87
87 75
87 87

75 87


Herbicide, Rate Ib/A
Handweeded control
CDAA, 4











Table 13. The stand and tolerance response of bush bean, lima bean, California
Black Eye, Alabama Crowder and English peas to pre-emergence applied
herbicides. Values are given as percentages of untreated controls
at three weeks after application. Rates of application are Ib/A
active ingredient.


Herbicide, Rate, Ib/A
Hand weeded control
CDAA, 4
CDEC, 4
CDEC, 4 + glyc.
CIPC, 8 + glyc.
"Falone", 8
2,4-D amine, 1
2,4-D amine invert, 1
+ diesel oil
2,4-D amine, 1 + sil.
2,4-D amine, 1 + glyc.


Bush bean Lima bean Black Eye Crowder Eng. peas
Std. Tol. Std. Tol. Std. Tol. Std. Fol. Std. Tol.
100% 100% 100o 100o 100% 100% 100% 100 100i 100o
100 87 100 100 100 87 87 87 62 87
100 87 87 87 75 87 100 100 87 87
100 100 100 100oo 75 100 100 100 62 75
87 87 75 75 75 87 75 87 75 87
87 87 87 87 87 12 87 12 75 75
100 100 100 1co 50 62 87 87 62 75


100 87
100 87
100 87


MCPA, 1 U7 75
4-(2,4-DB), 1.5 100 100
CMPP, 1.5 100 87
Fenac S, 1.5 75 62
Fenac aide, 1.5 87 75
Fenac LVE, 1.5 75 87
F 3520, 1.5 75 62
F 4038, 1.5 87 87
F 5076, 1.5 75 87
F 5087, 1.5 87 87
M-15336, 2, incorp. 100 100
G-444E, 4 87 87
G-30026, 4 62 87
Atrazine, 4 87 87
G-31435, 4 87 100
POP, 4 87 100
PCP, 4 + diesel oil 100 100
DAC-893, 15 100 100
GC-2603, 1.5 100oo 87
GC-2996, 1.5 100 87
"Zytron" (dalapon
ester, 4 + silver, 1) 75 87
dalapon, 4 +
monuron, 1) 87 100


100 87
87 87
100 87
100 87
100oo 87
87 87
50 62
62 62
75 75
62 6:"
87 75
87 87
100 100
100oo 87
87 100
87 87
75 75
75 62
87 100
100 100
100 100
87 87-
100 100


62 62 100 100
100 87 100 87
37 75 100 87
62 87 100 87
87 100 100 100
100 75 100 87
75 75 100 75
50 50 87 62
50 50 87 62
37 50 87 62
50 37 100 75
87 75 100 100
75 75 87 87
87 100 100 100
87 100 100 100
75 87 87 100
75 87 100 87
50 75 100 100
50 100 100 100
87 oo 100oo oo
75 87 87 100
100 100oo 50 75
loo 87 87 100oo


75 87
75 87
62 75
75 87
50 75
50 50
37 25
37 25
75 37
37 50
75 62
50 75
62 75
62 75
37 50
50 37
87 75
75 75
75 87
50 87
50 62
'0 62
37 62


75 87 62 87 62 75 25 37


87 87 87 87 100 100


__


37 50











Table 14. The stand and tolerance response of tomato, pepper, carrot, parsley
and onion to pre-emergence applied herbicides. Values are given
as percentages of untreated controls at three weeks after applica-
tion. Rates of application are Ib/A active ingredient.
Tomato Pepper Carrot Parsley Onion
Herbicide, Rate, lb/A Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.
Handweeded control 100% 100 00 00 100 10000 1 00% 1 100 100% 100/
CDAA, 4 87 62 87 87 50 75 87 87 0 0
CDEC, 4 87 75 87 75 62 75 87 87 12 12
CDEC, 4 + glyc. 75 75 87 87 50 75 87 87 25 25
CIPC, 8 + glyc. 12 12 87 100 100 100 87 100 12 12
"Falone", 8 75 62 75 75 75 75 87 87 50 50
2,4-D amine, 1 75 75 75 100 87 87 75 100 0 0
2,4-D amine invert, 1
+ diesel oil 62 50 62 87 75 75 87 100 87 87
2,4-D amine, 1 + sil. 87 87 75 100 87 100 100 87 12 12
2,4-D amine, 1 + glyc. 87 87 75 100 75 87 87 87 25 25
MCPA, 1 62 87 75 100 75 75 75 87 25 25
4-(2,4-DB), 1.5 75 75 75 100 87 87 87 87 25 37
CMPP, 1.5 87 62 62 62 62 37 62 75 25 37
Fenac S, 1.5 50 37 50 62 100 75 62 50 37 37
Fenac amide, 1.5 75 50 50 62 100 75 75 50 37 75
Fenac LVE, 1.5 62 37 50 75 100 87 62 50 50 75
F 3520, 1.5 37 37 37 50 25 25 75 75 75 87
F 4038, 1.5 62 37 50 50 25 37 87 75 75 62
F 5076, 1.5 75 50 50 62 87 75 62 62 75 62
F 5087, 1.5 75 62 75 87 75 62 62 50 37 62
M-15336, 2, incorp. 75 62 62 87 62 75 62 100 50 75
G-444E, 4 50 37 50 62 75 87 75 62 62 75
G-30026, 4 0 0 62 62 50 50 50 50 25 37
Atrazine, 4 0 0 12 12 25 25 62 37 0 0
G-31435, 4 0 0 25 37 75 75 50 37 0 0
PCP, 4 75 87 62 100 87 100 62 100 37 50
PCP, 4 + diesel oil 75 75 50 87 75 100 87 87 50 50
DAc-893, 15 62 62 75 87 75 87 100 100 75 87
GC-2603, 1.5 50 37 25 50 75 75 62 87 75 87
GC-2996, 1.5 75 37 50 62 62 87 50 75 87 87
"Zytron" (dalapon
ester, 4 + silvex,1) 75 62 62 75 75 100 75 100 62 75
dalapon, 4 +


75 87 62 75 loo loo 75 75 37 62


monuron, 1











Table 15. The stand and tolerance response of cabbage, Chinese cabbage,
radish 1, cucumber, and kenaf to pre-emergence applied herbicides.
Values are given as percentages of untreated controls at three
weeks after application. Rates of application are lb/A active
ingredient.

Cabbage Ch.Cabbage Radish 1 Cucumber Kenaf
Herbicide, Rate, lb/A Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.


Handweeded control
CDAA, 4
CDEC, 4
CDEC, 4 plus glyc.
CIPC, 8 plus glyc.
"Falone", 8
2, 4-D amine, 1
2, 4-D amine invert, 1
plus diesel oil
2, 4-D amine, 1 plus
sil.
2, 4-D amine, 1 plus


100% 100% 100% 100% 100% 100% 100% 100% 100% 100t
75 87 87 100 87 87 12 12 87 87
87 87 75 87 100 87 12 12 50 75
87 87 100 75 1'00 87 37 37 87 87
50 75 100 87 75 75 62 12 87 100
62 50 75 62 50 50 50 62 100 87
75 75 62 87 75 37 100 100 62 87


37 37 75 87

87 100 100 87


glyc. 62 62 87 75
MCPA, 1 25 25 37 62
4-(2,4-DB), 1.5 75 75 75 75
CMPP, 1.5 0 0 62 37
Fenac S, 1.5 62 62 87 62
Fenac amide, 1.5 75 75 100 100
Fenac LVE, 1.5 75 75 87 100
F 3520, 1.5 0 0 37 37
F 4038, 1.5 37 25 75 62
F 5076, 1.5 50 50 75 87
F 5087, 1.5 50 62 87 87
M-15336, 2, incorp. 62 87 87 100
G-444E, 4 50 37 62 87
G-30026, 4 25 12 75 75
Atrazine, 4 0 0 12 37
G-31435, 4 0 0 25 37
PCP, 4 75 75 100 100
PCP, 4 plus diesel oil 87 75 87 87
DAC-893, 15 75 100 62 87
GC-2603, 1.5 62 50 75 87
GC-2996, 1.5 62 87 87 87
"Zytron" (dalapon
ester, 4 plus sil-
vex, 1) 62 50 37 37
dalapon, 4 plus
monuron, 1 75 87 87 100


50 50 62

50 50 75
50 62 50
62 50 37
75 62 62
50 25 12
75 62 87
87 62 75
75 75 75
50 37 50
62 37 75
75 50 87
87 50 87
87 62 100
62 62 87
50 37 12
25 25 0
75 37 37
62 75 100
62 75 87
87 87 100
87 100 87
87 10C 87


87 75 75

75 75 100


75 75 62
100 100 87


62
37
25
12
25
37
62
50
62
87
87
87
100
37
0
37
100
100
100
75
87


100
50
75
75
50
62
62
87
100
100
87
75
87
62
75
87
75
100
87
50
100


100
62
62
75
75
75
75
75
100
100
87
75
62
75
87
100
100
100
87
100oo
100


75 87 87
100 50 75












Table 16. The stand and tolerance response of escarole, lettuce, romaine, and
soybean to pre-emergence applied herbicides. Values are given as
percentages of untreated controls at three weeks after application.
Rates of application are Ib/A active ingredient.

Escarole Lettuce Rrmaine Soybean
Herbicide, Rate, lb/A Std. Tol. Std. Tol. Std. Tol. STd. Tol.


Handweeded control
CDAA, 4
CDEC, 4
CDEC, 4 plus glyc.
CIPC, 8 plus glyc.
"Falnne", 8
2,4-D amine, 1
2,4-D amine invert, 1
plus diesel oil
2,4-D amine, 1 plus
sil.
2,4-D amine, 1 plus


100% 100% 100% 100% 100% 100% 100% 100%
0 0 0 0 0 0 100 87
0 0 0 0 12 12 87 75
12 12 12 12 0 0 100 75
37 62 87 87 37 62 87 75
50 62 12 12 0 0 100 87
62 75 100 75 50 62 87 87


87 87 87 62 12 12 87


37 75 37 37


glyc. 50 75
MCPA, 1 62 87
4-(2,4-DB), 1.5 75 100
CMPP, 1.5 50 62
Fenac S, 1.5 75 62
Fenac amide, 1.5 87 87
Fenac LVE, 1.5 75 75
F 3520, 1.5 50 62
F 4038, 1.5 75 62
F 5076, 1.5 75 87
F 5087, 1.5 75 100
M-15336, 2, incorp. 62 87
G-444E, 4 37 50
G-30026, 4 12 25
Atrazine, 4 0 0
G-31435, 4 0
PCP, 4 75 87
PCP, 4 plus diesel oil 87 87
DAC-893, 15 87 100
GC-2603, 1.5 75 87
GC-2996, 1.5 62 87
"Zytron" (dalapon
ester, 4 plus silvex,
1) loo 87
dalapon, 4 plus
monuron, 1 87 87


75
75
87
62
62
75
75
0
37
75
62
75
0
0
0
0
62
75
87
75
75


o 0 87


12
25
25
25
37
12
62
0
0
37
62
100
37
0
0
0
50
50
75
62
62


75
100
75
100
87
100
100
75
62
75
75
87
87
87
87
75
100
87
100
100
100


75

75

75
75
50
75
75
62
62
75
75
75
62
62
75
62
62
50
87
87
87
75
100


87 62 87 75 100 75

100 100 62 75 87 87











Grass and broadleaf weed
emergence application of
of hand-weeded controls.
ingredient.


stand and control at three weeks after pre-
herbicides. Values are given as percentages
Rates of application are Ib/A active


Herbicide,


Rate, lb/A


Grass Weeds
Stand Control


Broadleaf weeds
Stand Control


Handweeded control
CDAA, 4
CDEC, 4
CDEC, 4 + glyc.
CIPC, 8 + glyc.
"Falone", 8
2,4-D amine, 1
2,4-D amine invert, 1
+ diesel oil
2,4-D amine, 1 + sil.
2,4-D amine, 1 + glyc.
MCPA, 1
4-(2,4-DB), 1.5
CMPP, 1.5
Fenac S, 1.5
Fenac amide, 1.5
Fenac LVE, 1.5
F 3520, 1.5
F 4038, 1.5
F 5076, 1.5
F 5087, 1.5
M-15336, 2, incorp.
G-444E, 4
G-30026, 4
Atrazine, 4
G-31435, 4
PCP, 4
PCP, 4 + diesel oil
DAC-893, 15
GC-2603, 1.5
GC-2996, 1.5
"Zytron" (dalapon
ester, 4 + silvex, 1)
dalapon, 4
+ monuron, 1


00
0
12
0
31
18
31

25
37
37
43
43
23
12
31
31
6
12
31
37
87
68
62
37
37
31
37
6
43
37


0%
12
12
0
75
18
50


100%
100
87
100
68
81
75

75
68
68
62
56
81
75
62
62
93
87
68
62
31
50
56
75
68
68
68
93
62
68


6 87

1!2 87


100l
87
87
100
25
81
42

42
50
43
68
50
81
81
66
62
87
68
50
50
43
93
87
87
100
37
43
81
25
18'

43


37 62


Table 17.


Stn Coto Stn Control... ....













Table 18. Tolerance of selected test crops to superior herbicidal treat-
ments at 6 weeks after pre-emergence application. Values are
given as percentages of untreated controls. Rates of applica-
tion are Ib/A active ingredient


CDAA, 4


Field corn
Sweet corn
Sorghum
Rice
Kenaf
Soybean
Bush bean
Lima bean
California Black Eye
Alabama Crowder
Tomato
Pepper
Carrot
Parsley
Chinese cabbage
Radish 1


100%
100
87
100
100
100
100
100
100
100
100
100
100
100
100
100


CDEC, 4


100%
100
87
100
87
87
100
100
100
100
87
37
87
75
100
100


CDEC, 4 plus glyc.


100%
100
87
75
100
100
100
100
100
100
100
62
87
87
100
100
100


Table 19. Grass and broadleaf weed control effectiveness of selected
herbicidal treatments at six weeks after pre-emergence applica-
tion. Values are given as percentages of handweeded control'.
Rates of application are lb/A active ingredient.
Grass weed Broadleaf
Herbicide,-Rate, 1b/A control weed control

Handweeded control 1005 100%
CDAA, 4 100 87
CDEC, 4 75 93
CDEC, 4 plus glyc. 75 93
Atrazine, 4 25 100
G-41435, 4 25 87
DAC-893, 15 62 12


Test Crop











Table 20. The stand and tolerance response of field corn, sweet corn,
oat, sorghum and rice to post emergence applied herbicides.
Values are given as percentages of untreated controls at
10 days after application. Rates of application are Ib/A
active ingredient.

F. corn Sw. corn Oat Sorghum Rice
Herbicide, Rate, lb/A Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.


100% 100% 100% 100% 100% 100L 100% 100% 100% 100%


CDAA, 4 100 100
CP-861-2, 3 100 100
6 100 75
CDEC, 4 100 100
CP-10543, 1 87 75
,2 87 75
4 75 62
CMPP, 1.5 75 75

dalapon, 4 75 50
dalapon, 4
plus 4-(2,4-DB), 1.5 87 62
"Zytron" (dalapcn ester,
4 plus silvex, 1) 87 75
ACP M-847, 4 100 100
CP-9703, 3 100 87
Atrazine, 4 87 62
Fw-450, 5 87 62
FW-450, 5 plus
4-(2,4-DB), 1.5 87 75
FW-734, 1 62 37
2 37 25
4 25 12


FB-2, 0.5
1
NIA-4512, 4
NIA-4556, 4
NIA-4562, 4
endothal, 4


37 25
25 12
75 50
25 25
50 37
62 37


Group I
100 100 100 100 100 100
87 100 100 87 100 100
100 75 loo 62 100 62
87 100 100 87 100 100
62 62 62 37 87 62
50 62 50 37 62 50
25 25 25 25 62 25
62 37 50 87 87 62

Group II
62 62 75 50 87 37

75 75 75 50 87 37


62 37
87 100
100 87
75 62
87 62

87 75
50 37
25 12
o 0
25 12
0 0
75 50
12 12
0 0
50 37


62 12 100 25
87 75 100 100
37 62 87 62
0 0 87 87
25 25 75 50

25 25 75 50
12 12 87 25
0 0 12 0
0 0 0 0
12 12 75 12
0 0 87 12
25 37 87 37
0 0 0 0
0 0 25 25
50 25 75 25


100 100
62 87
87 62
87 87
62 75
62 62
37 25
50 62


37 37
62 50

62 75
50 62
62 87
0 0
12 12

37 25
75 87
75 87
62 87
62 37
50 25
75 37
0 0
0 o
12 12


Hand weeded


- "











The stand and tolerance response of snap bean (bush and pole),
lima bean, and southernpea (California Black Eye and Alabama
Crowder) to post emergence applied herbicides. Values are
given as percentages of untreated controls at 10 days after
application. Rates of application are Ib/A active ingredient .


Herbicide. Rate. Ib/A


Bush bean
Std. Tol.


Pole bean
Std. Tol.


Lima beea Black Eye
Std. Tol. Std. Tol.


Handweeded control


CDAA 4
CP-861-2,

DBCI, 4
CP-10543,


CMPP, 1.5


100M 100%


100
100
100
100
25
12
0
37


dalapon, 4
dalapon 4 plus
4-(2,4-DB), 1.5
"Zytron" (dalapon,ester,
4 plus silvex, 1)
ACP M-847, 4
CP-9703, 3
Atrazine, 4
FW-450, 5
FW-450, 5
plus 4-(2,4-Db), 1.5
FW-734, 1
,2
4
FB-2, 0.5
1
NIA-4512, 4
NIA-4556, 4
NIA-4562, 4
endothal, 4


87
87
62
100
25
12
0
25


100% 100%

Group I
100 100
100 87
100 62
100 100
0 0
0 0
0 0
25 12


87 62 .- .-


75 12


100% 100%


100
100
100
100
12
0
0
37


87


- 75 25 0 0 0 0


Table 21.


Crowder
Std. Tol.


100% 100%0


100% 100%


100


100
50
25
0
25


100
-m

100
37
12
0
12


100
87
62
100
12
0
0
25


75


100
100
100
100
87
25
0
12


100
100
100
100
37
25
0
12


75 62


75 62


0
62
87
0
0

0
25
12
0
25
12
100
87
87
37


- -


f f ff .. .. ... ....












Table 22. The stand and tolerance response of soybean, English pea, kenaf,
tomato and pepper to post emergence applied herbicides. Values
are given as percentages of untreated controls at 10 days after
application. Rates of application are Ib/A active ingredient.

Soybean Eng. peas Kenaf. Tomato Pepler
Herbicide, Rate, lb/A Std. Tol. Std. Tol. Std. Tol. Std. Tol. Std. Tol.


Handweeded control


CDAA, 4
CP-861-2, 3
6
CDEC, 4
CP-10543, 1
2
C 4
CMPP, 1.5


100% 100% 100% 100% 100i 100% 100% 100% 100% 100%


100 100
87 75
100 50
87 100
75 37
25 25
12 12
12 12


dalapon, 4 75 37
dalapon, 4
plus 4-(2,4-DB), 1.5 62 12
"Zytron" (dalapon ester,
4 plus silvex, 1) 0 0
ACP M-847, 4 62 37
CP-9703, 3 62 62
Atrazine, 4 0 0
FW-450, 5 0 0
FW-450, 5
plus 4-(2,4-DB), 1.5 12 12
FW-734, 1 25 12
,2 0 0
,4 0 0
FB-2, 0.5 12 12
1 0 0
NIA-4512, 4 25 25
NIA-4556, 4 37 25
NIA-4562, 4 0 0
endothal, 4 37 12


Group I
100 100
62 75
100 62
75 100oo
25 25
12 12
0 0
0 0

Group II
62 75

12 12

0 0
12 12
25 37
0 0
0 0

0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0


100
75
75
87
o
0
0
0


100 100
50 75
62 50
75 75
0 0
0 0
0 0
0 0


100 100
75 87
62 87
100 100
0 0
o 0
0 0
0 0


87 25 87 100 62 75

0 o 75 75 12 12


0 0
50 50
87 62
0 0
0 0

25 37
37 25
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0


0 0
62 75
75 87
0 0
25 12

0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0












The stand and tolerance response of broccoli, cabbage, Chinese
cabbage, and two varieties of radish to post emergence applied
herbicides. Values are given as percentages of untreated


controls at 10 days after application. Rates
are lb/A active ingredient.


Herbicide, Rate, lb/A

Handweeded control


CDAA, 4
CP-861-2,

CDEC, 4
CP-10543,


CMPP, 1.5


Broccoli
Std. Tol.

100% 100%


100
87
37
62
0
0
0
0


dalapon, 4
dalapon, 4 plus
4-(2,4-DB), 1.5
"Zytron" (dalapon ester,
4 plus silvex, 1)
ACP M-847, 4
CP-9703, 3
Atrazine, 4
FW-450, 5
Fw-450, 4 plus
4-(2,4-DB), 1.5
FW-734, 1
,2
14
FB-2, 0.5
1
NIA-4512, 4
NIA-4556, 4
NIA-4562, 4
endothal, 4


100
87
50
87
0
0
0
o


Cabbage ChCabbage
Std. Tol. Std. Tol.


100% 100%

Group I
100 87
87 87
62 62
75 87
12 12
0 0
0 0
0 0


100% 100%


100
87
62
100
0
0
0
0


100
75
50
87
0
0
0
o


of application


Radish 1
Std. Tol.

100% 100%


100
87
37
75
12
0
0
0


100
87
37
87
12
0
0
0


Group II
-- -- 22 87 87 87 87 87

- -- 25 25 50 25 37 25


37
87
100
0
25

25
75
75
62
25
12
0
0
0
62


Radish 2
Std. Tol.

100o 100%


100
87
50
75
12
0
0
12


100
87
37
75
12
0
0
12


25
62
100
0
37

37
62
50
37
25
12
0
0
0
37


Table 23.


rr ri

rr rr












The stand and tolerance response of carrot, parsley, cucumber,
and onion to post emergence applied herbicides. Values are
given as percentages of untreated controls at 10 days after
application. Rates of application are Ib/A active ingredient.


Herbicide. Rate. Ib/A


Carrot
Std. Tol.


Parsley Cucumber
atd. Tol. Std. Tol.


Handweeded control


CDAA, 4
CP-861-2,

CDEC, 4
CP-10543,


CMPP, 1.5


dalapon, 4
dalapon, 4 plus
4-(2,4-DB), 1.5
"Zytron" (dalapon ester,
4 plus silvex, 1)
ACP M-847, 4
CP-9703, 3
Atrazine, 4
FW-450, 5
FW-450, 5 plus
4-(2,4-DB), 1.5
FW-734, 1
2

FB-2, 0.5
,1
NIA-4512, 4
NIA-4556, 4
NIA-4562, 4
endothal, 4


Group II
87 87 50 87 75 62

75 87 0 0 62 50


Table 24.


Onion
Std. Tol.


100% 100%


100% 100%


100% 100%


100
100
100
87
87
87
75
0


100% 100%

Group I
62 87
87 87
50 87
62 87
50 87
12 12
0 0
0 0


rr rr

Ir rr


__


ii f f E -












The stand and tolerance response of endive, escarole, leaf and
head lettuce and romaine to post emergence applied herbicides.
Values are given as percentages of untreated controls at 10
days after application. Rates of application are lb/A active
ingredient.


Herbicide. Rate. lb/A


Endive Escarole Leaf let.
Std. Tol. Std. Tol. Std. Tol.


Head let. Romaine
Std. Tol. Std. Tol.


Handweeded control


100% 100% 100% 100% 1000 100%


CDAA, 4
CP-861-2,

CDEC, 4
CP-10543,


CMPP, 1.5


dalapon, 4
dalapon, 4 plus
4-(2,4-DB), 1.5
"Zytron" (dalapon ester,
4 plus silvex, 1)
ACP M-847, 4
CP-9703, 3
Atrazine, 4
FW-450, 5
FW-450, 5 plus
4-(2,4-DB), 1.5
FW-734, 1
2
4
FB-2, 0.5
1
NIA-4512, 4
NIA-4556, 4
NIA-4562, 4
endothal, 4


Group I
62 87
75 75
25 25
62 87
0 0
0 0
0 0
0 0


Group II
75 100

- -- 50 25


100
75
100
0
25

37
50
o
0
0
0
o
o
o
0


100
75
100
0
25

37
37
0
0
0
0
0
0
0
0


- 87 75 62 75

- 0 0 0 0


12
12
100
0
0

0
37
25
0
0
0
0
0
0
0


0
25
100
0
0

0
0
0
0
0
0
0
0
0
0


0
62
100
0
0

0
0
0
0
0
0
0
0
0
0


Table 25.


100% 100%


100% 100%


_f












Table 26. Grass and broadleaf weed control at 10 days after application of
post emergence herbicides. Values are given as percentages of
handweeded controls. Rates of application are Ib/A active
ingredient.

Herbicide, Rate, lb/A Grass control Broadleaf control
Handweeded control 100% 100%

Group I
CDAA, 4 0 0
CP-861-2, 3 0 0
,6 0 18
CDEC, 4 0 0
CP-10543, 1 43 300
,2 56 100
4 75 100
CMPP, 1.5 18 93

Group II
dalapon, 4 87 12
dalapon, 4 plus 4-
(2,4-DB), 1.5 56 75
"Zytron" (dalapon ester, 4
plus silvex, 1) 50 75
ACP M-847, 4 25 50
CP-9703, 3 75 12
Atrazine, 4 87 100
FW-450, 5 50 87
FW-450, 5 plus 4-
(2,4-DB), 1.5 37 1-.0
FW-734, 1 75 75
,2 87 87
,4 100 100
FB-2, 0.5 75 100
1 75 100
NIA 4512, 4 81 100
NIA 4556, 4 93 200
NIA 4562, 4 93 10
endothal, 4 56 A3












The tolerance of field corn, sweet corn, sorghum and rice to
selected post emergence applied herbicides. Values are per-
centages of handweeded controls at 20 days after application.
Rates of application are lb/A active ingredient.


Herbicide. Rate lb/A


F. Corn Sw. Corn


Handweeded control


CP-10543,


CMPP, 1.5


dalapon, 4
dalapon, 4 plus e:-(2,4.DB),
1.5
"Zytron" (dalapon estar,
4 plus silvex, 1)
Atrazine, 4
FW-450, 5
FW-450, 5 plus 4-(2,4-DB),
1.5
FW-734, 1
,2
4
FB-2, 0.5
1
NIA-4512, 4
NIA-4556, 4
NIA-4562, 4
endothal, 4


Table 27.


100%


Sorahum


Rice


100%

Group I
62
50
12
12

Group II
12

12

12
62
12
12

25
0
0
0
0
37
0
0
25


100%


62
37
12
25


12

12

12
75
12
12

12
0
0
25
25
25
0
12
25


100%


--
--




12

12

12
--
--


100
87
87


12
0
0
0
o


.... T--- -- .. .. ---t-- -1


--












Table 28.


The tolerance of selected crops to selected herbicidal treatments.
Values are percentages of handweeded controls at 20 days after
post emergence application. Rates of application are Ib/A acti-v
ingredient.


Tomato Carrot Ch. Cabbage Kenaf

FW-734, 1 37% 25% 62 --
,2 12 0 62
,4 0 0 37
NIA-4512, -- 87 87
NIA-4556, 4 -- 75
NIA-4562, 4 -- 62



Table 29. Grass anc. brcadleaf weed control at 20 days after application nf
poet energcnce herbicides. Values rre given as percentages of
handweeded controls for selected trreatments. Rates of applicSat.on
are lb/A active ingredient.

Herbicide, Rate, lb/A Grass control Broadleaf control

Handweeded control 1005 100%

Group I
CP-10543, 1 50 100
,2 62 100
4 75 100
CMPP, 1.5 50 100

Group II
dalapon, 4 87 12
3alapon, 4 plf,' 4-(2,4-DB), 1.5 75 87
"Zytron" (dalapon ester, 4
plus silvex, 1) 75 87
Atrazine 75 100
FW-450, 5 62 62
FW-450, 5 plus 4-(2,4-DB), 1.5 -o 87
FW-734, 1 87 87
2 100 100
,4 100 100
FB-2, 0.5 62 100
62 1CO
NIA-4512, 4 75 l 0
A--fr- .4 100 100
NIA-4562, 4 10' 100
endothal, 4 37 20




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