Title: Primary evaluation of pre-planting and of pre- and post-emergence applied herbicides in vegetable and field crops.
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 Material Information
Title: Primary evaluation of pre-planting and of pre- and post-emergence applied herbicides in vegetable and field crops.
Physical Description: Serial
Language: English
Creator: Orsenigo, J. R.
Publisher: Everglades Research Station, University of Florida
Place of Publication: Belle Glade, Fla.
Publication Date: October, 1966
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General Note: Everglades Station Mimeo Report EES67-6
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Bibliographic ID: UF00076926
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
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Everglades Station Mimeo Report EES67-6 October 1966


PRIMARY EVALUATION OF PREPLANTING, PREEMERGENCE AND POSTEMERGENC
APPLIED HERBICIDES IN VEGETABLE AND FIELD CROPS, SPRING, 19661

J. R. Orsenigo2'


Summary: Burgess Vibrocrafter's thermally-propagated fog injection appeared a
promising technique for application of undiluted and technical herbicide
formulations if uniform fog delivery, dispersion and distribution can
be achieved.

Benefin, EPTC and trifluralin were the superior incorporated herbicides
and the weed control performance of the latter 2 improved, but crop
tolerance decreased, with more thorough incorporation.

H-210, H-210-1, H-245, H-255, pyriclor, GS-14253, GS-14259, GS-14260,
CP-31393, CP-31393 + 2,4-D, CP-50144 and TD-596 applied preemergence
were most effective for annual grass weed control. Large seeded crops
were more tolerant than small-seeded. The above and many other herbicides
controlled annual broadleaf weeds and several herbicides controlled sedges
partially. CDEC remains an effective overall chemical standard.

Postemergence-applied ACD-10614, cotoran, C-6313, pyriclor, H-732,
ametryne, GS-13633, GS-14253, GS-14259, GS-14260, CP-41820, CP-43797,
CP-46698, S-6000, U 14611 and AMA + 2,4-D provided the most effective
annual grass weed control. The above herbicides, and many others, were active
against annual broadleaf weeds while several controlled sedges partially. Economic
tolerance of these chemicals was demonstrated mainly by large'-seeded crops.

Certain surfactants were more effective than others in enhancing the
activity of atrazine against annual grass weeds. Oil adjuvants were
inferior to the better surfactants. DMSO did not enhance atrazine's
activity.



Experiment: 1088-17-66

Location: Everglades Experiment Station, Field 2 NW

Soil type: Okeelanta peaty muck

Cultural operations: Field preparation; February, March 1966

Soil insecticide; 6 April 1966 (Diazinon, 4 lb/A ai
disked in)

Fertilization and fitting; 7 April 1966 (800 Ib/A, 0-12-16
with micronutrients)


SThis tabulation of the comparative performance of commercial and experimental
herbicides on the organic soil of the Everglades was prepared for herbicide
researchers and the industry. The data neither constitute nor imply
recommendations of any herbicide for any usage.

2/ Associate Horticulturist, University of Florida, Everglades Experiment
Station, Belle Glade, Florida.







Final fitting; 11 April 1966

Crops planted; 12 April 1966

Routine fungicide-insecticide applications were made weekly
or more frequently when required.

Design: Non-replicated single treatments plots. Vegetable (21 test
varieties) and field (7 test varieties) were planted in
north-south rows. Herbicide-treated strips (6 ft wide x
60 ft long) traversed the crop rows in an east-west direction. Handweeded,
unweeded and CDEC (4 lb/A) standard herbicide controls were interspersed among
the treatments at intervals.

Description of test crops: Not all test crops attained sufficient stand or growth
desirable for adequate evaluation. Table 1 lists the crops
planted and their growth stages when postemergence treat-
ments were applied. Crops which were evaluated are listed in the data tables.

Description of weed population: No weed seedlings had emerged at the time of
preplanting or preemergence herbicide application but weed
seed had commenced germination. Weeds in the postemergence
plots at time of application were typical of the experimental area and the
unneeded control. These infestants and their developmental stages at postemergence
are listed in Table 2.

Description of herbicide treatments: Herbicides, formulations and suppliers are
listed in Table 3. Rates of application are given as lb/A
active ingredient or acid equivalent, whichever is appropriate.
Surfactant rates are in terms of percent active ingredient per volume, v/v.

Sub-surface thermal fog injection treatments were installed
by Burgess Vibrocrafters (BVI) with their equipment. Herbi-
cides heated in their equipment were retained after plot
application and were applied as preemergence herbicides in other plots to determine
whether the apparatus caused thermal breakdown of the herbicides.

EPTC and trifluralin were applied to the soil surface
preplanting, raked-in lightly and then Ro-Wheels and a
roller were passed over the plots.

A second incorporation method compared several candidate
herbicides which were sprayed on the soil surface, incor-
porated with a rotary tiller, stirred with Ro-Wheels and rolled

Preemergence treatments were applied broadcast to the soil
surface after seeding in rolled soil.

Postemergence herbicidal treatments were applied as broadcast
topical sprays over crops and weeds.

All treatments except the sub-surface fog applications were
applied in 50 gpa of water carrier with an experimental
small plot herbicide tractor using a Hypro nylon roller
pump and Spraying Systems Tee-Jet nozzles. Preemergence applications of the BASF
herbicides were made with hand-carried, C02-powered small-plot equipment in strips
3 feet wide across the test crops.







Herbicide application data: Preplantins incorporated: 11 April 1966 (2:00 4:00 rIi

Preemergence: 13 April 1966 (7:00 10:30 AM; wind easterly
less than 3 to 4-6 mph; clear sky; moderate temperature;
spray water pH 9, hardness 340 ppm)

14 April 1966 (7:00 10:00 AM; wind easterly
0 to 3-8 mph; clear sky; cool temperature; spray water
pH = 9, hardness = 340 ppm)

15 April 1966, for BASF hand-applied (7:00 -
8:30 AM; wind southeasterly 0 5 mph; clear sky; cool
temperature; spray water pH = 9, hardness = 340 ppm)

Postemergence: 3 May 1966 (6:20 8:50 AM, wind easterly
0 6 mph; clear sky; temperature moderate; spray water
pH 8, hardness = 320 ppm)

4 May 1966 (5:40 10:00 AM; wind easterly 0-
6 mph; clear sly to bright overcast; temperature moderate;
spray water pH = 8, hardness = 320 ppm)

Surface soil moisture: (NB field capacity ca. 160o)

After preplanting application:
shallow, 0 3/8 in depth = 125%
deep, 3/8 1 in depth = 140o

After preemergence application;
shallow, 0 3/8 in depth = 100%
deep, 3/8 1 in depth = 1280

Rainfall data: Rainfall for week after application indicated:

Time after Pre- Post-
application emergence emergence
1 week 0.00 in 0.28 in
2 0.03
3 1.43
4 0.28
6 1.59

Temperature data: Average temperature values for indicated period after
preemergence application:

Time after Temperature, F
application Max. Min. Mean
1 week 82 59 70
2 82 60 71
84 63 74
4 85 66 76
6 88 66 77

Method of evaluation: Untreated and CDEC (4 lb/A ai) control strips served as crop
and weed standards against which the experimental treatments
were compared on a 1 to 9 rating scale. The rating values
were converted to percentages for this report. Visual evaluations were made at
1 month after -reemerrence and 10 days after Dosteme-aon- onwlint.inn.







Experimental results: 1. BVI fog injection: BVI technicians, with their equipment,
applied thermally propagated fogs from undiluted emulsifiable
concentrate formulations of ACP 64-296B, CDAA, CDEC, EPTC,
OCS 21693 and trifluralin, and from technical material of atrazine, DCPA, dicamba
and diphenamid. Six injection shanks under the leading edge of a bed-press were
spaced across the 6-foot plot width. At an injection depth of 2 inches, there was
some fog loss, especially at the outboard shanks. Fog loss did not occur with 4-
inch injection in an earlier trial. Delivery problems were associated with most
solid, technical herbicides; the chemicals sublimed and plugged the delivery tubes
and injectors.

The herbicide fog apparently diffused only 1-1/2 to 2 inches
through the soil on each side of the injector; herbicide
concentrations of 2 to 3 times the planned dosage applied
in bands which alternated with essentially untreated strips. Weeds and crops were
killed in the tracks of the injectors. The most active herbicides were CDAA, CDEC,
dicambe, EPTC and trifluralin. Effective weed control in the treated bands was
marked for 3 to 4 weeks after which the bands were obscured by weed growth which
lapped over from the essentially untreated strips.

The alternation of bands of excessive dosage with no
treatment precluded evaluation. The method does appear
promising if uniform fog dispersion and distribution can
be achieved.

Emulsifiable concentrate herbicides heated in the BVI thermal
fog unit were applied preemergence to the soil surface with
conventional equipment. Heating had no pronounced effect
on weed control or crop tolerance (Tables 8 and 9).

_. Preplanting incorporated herbicides (Tables 4 7):
More thorough incorporation of EPIC and trifluralin with
rotary tillage improved annual weed control slightly but
at the expense of decreased crop tolerance. Annual grass and broadleaf weed
control was improved by incorporated of benefin, EPTC and trifluralin as compared
with preemergence application. Bensulide and EPTC controlled sedges partially,
especially when these herbicides were incorporated. Benefin, EPTC and trifluralin
were the superior incorporated herbicides and certain crops were economically
tolerant of these chemicals.

3. Preemergence-applied herbicides (Table 10-21):
The highest levels of Alexandergrass control were noted for:
H-210, H-210-1, H-245, H-255, pyriclor, GS-14253, GS-14259,
GS-14260, CP-31393, CP-31393 + 2,4-D, CP-50144 and TD-596. The above herbicides,
and also C-6313, H-732, GS-13259, CDAA and CDEC were effective against goosegrass
and a smaller and less uniform population of crabgrass. The better annual broad-
leaf weed herbicides were the foregoing plus: H-170-1, H-226, H-231, H-232, C-6989,
DCPA, H-767, GS-16040, CP-43797, CP-45592, CP-46698, NIA 11092, UC-22463 and
dicamba. Sedge was controlled partially by: GS-13259, GS-14260, CP-31393, CP-31393
+ 2,4-D, CP-50144, bensulide and EPTC. Many large-seeded crops tolerated these
promising preemergence herbicides on organic soil. A smaller number of these
chemicals were tolerated by various small-seeded crops.







4. Postemergence-applied herbicides (Tables 22-29):
.--- Alexandergrass was least tolerant of postemergence-applied
ACD 10614, cotoran, C-6313, pyriclor, H-732, ametryne,
GS-13633, GS-14253, GS-14259, GS-14260, CP-41820, CP-43797, CP-46698, s-6000,
U-14611 and AMA + 2,4-D. Goosegrass was least tolerant of the foregoing chemicals
and also: CMA, H-245, patoran, bromacil, and H-767. The above herbicides and many
others controlled broadleaf weeds. Sedges were controlled partially by: ACD 10614,
pyriclor, bromacil, H-732, GS-14253, GS-14259, GS-14260, GS-16040 and DMSA. Certain
crops, mainly large-seeded, appeared to have some economic tolerance to these
herbicides.

5. Postemergence-applied herbicide-adjuvant combinations
[Tables 30 and 31): Annual grasses were controlled best by
postemergence applications of atrazine plus the following
surfactants (at 1% v/v ai): A-210, X-77, Surf. WK, CA 620, CA 630, CO 710 and X-114
Other surfactants, especially the sucrose tallowates, were not as effective adju-
vants. Various phytobland oils, emulsified in the spray mixtures, were not as
effective as the surfactants in enhancing herbicide activity. Oil surfactant
combinations were more phytotoxic than the oils alone. DMSO did not alter atrazine
toxicity. The addition of a water softener, Calgon, to spray waters of varying
degrees of hardness seemed to enhance atrazine activity slightly. All combinations
controlled broadleaf weeds completely. Crop tolerance to the more effective
combinations was low. Some of the surfactants, oil adjuvants and DMSO apparently
lowered atrazine activity as compared to the atrazine-canal water control.

6. Superior prolonged herbicidal activity (Table 32):
Trifluralin at 3 lb/A incorporated with rotary tillage was
the superior incorporated herbicide at 6 weeks after appli-
cation. The superior preemergence herbicides at 6 weeks after application were:
H-210 at 4 and 8 lb/A, GS-14260 at 8 lb/A, CDAA at 4 lb/A, CDEC at 4 Ib/A, CP-31393
at 8 lb/A, CP-31393 + 2,4-D at 4 + 1.33 and at 8 + 2.66 lb/A, and CP-50144 at 4
and 8 lb/A. The superior postemergence herbicidal treatments at 3 weeks after
application were: ACD 10614 at 10 Ib/A, C-6313 at 2 Ib/A + surfactant, pyriclor
at 1/2 lb/A, H-732 at 1-1/2 lb/A, (GS-13633, GS-14253, GS-14259 and GS-14260 each
at 2 lb/A), CP-41820 at 4 lb/A, CP-43797 at 4 lb/A, and S-600at 1, 2 and 4 lb/A.

Acknowledgments: This evaluation was supported in part by grants from Esso
Engineering & Research Company, Monsanto Company, Rohm &
Haas Company and Shell Development Company. Herbicides and
adjuvant chemicals were provided by the suppliers listed in Table 3. Pesticides
for maintenance were furnished by E. I. duPont de Nemours, Allied Chemical Company,
Entomology and Plant Pathology Sections, Everglades Experiment Station, Rohm &
Haas Company, Stauffer Chemical Company, Geigy Agricultural Chemicals and Union
Carbide Corporation. Crop seed were supplied by Agricultural Insecticide Company,
Kilgore Seed Company and Agronomy Section, Everglades Experiment Station.








Table 1.--Description of test crops.


Crop
Sweet corn
Sorghum
Oat
Rice
Sabdariffira
Okra
Peanut
Soybean
Southernpea
Snapbean
Cucumber
Summer Squash
Spinach
Tomato
Onion
Carrot
Parsley
Cabbage, white
Cabbage, red
Cabbage, Chinese
Radish
Lettuce
Lettuce
Romaine
Escarole
Endive


Endive

Hairy Indigo


Variety
Silver Queen
Tracy
Suregrain
CP-9016

Clemson Spineless
Valencia
CNS-4
Texas Cream 40
CalPack Bush Blue Lake
Marketer
Early Yellow Crookneck
CalPak
Grothen's Globe
Granex
Nantes
Triple Curled
Copenhagen Market
Red Acre
Michihli
Cherry Belle
Great Lakes
White Boston
Parrish Island Cos
Full Heart Batavian
Green Curled
Green Ribbed
Green Curled
Pink Ribbed


Development at postemergence application
5-6 true leaves, tillering, 20-24 in tall
5 true leaves, tillering, 6-12 in tall
4 true leaves, tillering, 8-10 in tall
3 true leaves, tillering, 8-10 in tall
2 true leaves, 2-4 in tall
2 true leaves, 2-4 in tall
to 6 in tall
3 true leaves, 10-12 in tall

2-3 true leaves, 10-12 in tall
4 true leaves, 12-14 in tall
6 true leaves, 12-16 in tall

2-3 true leaves, 6-7 in tall

2 true leaves, 2 in tall
1 true leaf, 1/2 in tall
3 true leaves, 4-6 in tall
2 true leaves, 4 in tall
5 true leaves, 9-12 in tall
4 true leaves, 4-6 in tall 1/2 in root
2-3 true leaves, 4-6 in tall
2-3 true leaves, 3-6 in tall
4-5 true leaves, 2-5 in tall
4 true leaves, 4-7 in tall

4 true leaves, 4-7 in tall

4 true leaves, 4-7 in tall
2 true leaves, 1-2 in tall


Table 2.--Weed infestants of the experimental area and their developmental stages
at postemergence application. Major infestants are indicated with an
asterisk.


*Alexandergrass
*Goosegrass
Crabgrass
*Dayflower
Purslane
Ragweed
*Seminole pumpkin
*Spiny amaranth
Nutsedge, yellow


Brachiaria sp.
Eleusine indica
Digitaria sp.
Commelina sp.
Portulaca oleraceae
Ambrosia sp.
Cucurbita sp.
Amaranthus spinosus
Cyperus rotundus


2-6 in tall with up to
3-5 in tall with up to
3-6 in tall with up to "
2-3 in tall, running
2-3 in tall, branching
2-5 in tall
12-15 in tall, 5 leaves
8-10 in tall
4-6 in tall


tillers
tillers
tillers




-7-


Table 3.--Herbicides, formulations and suppliers.

Allied Chemical


ACD-10614
Plyac

Surfactant A

Amchem Products


ACP
ACP
ACP
ACP
ACP
ACP
ACP


63-224
64-296B
64-313
65-81B
65-236
65-237
65-313


ACP 65-322

CMA


classified
emulsifiable AC polyethylene 629, fatty acid-amine
concentrate, alkyaryl sulfonate
not specified


pyrazon, 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone
an earlier formulation of ACP 65-313
ioxynil, 3,5-diiodo-4-hydroxybenzonitrile
methyl ester of amiben
unspecified esters of dinoben and fenac, ratio 2:1
unspecified esters of amiben and fenac, ratio 2:1
1,l-dimethyl-4,6-diisopropyl-5-indanyl ethyl ketone and
1,1-dimethyl-4,6-diisopropyl-7-indanyl ethyl ketone
1,1,4-trimethyl-6-isopropyl-5-indanyl ethyl ketone and
1,1,4-trimethyl-6-isopropyl-7-indanyl ethyl ketone
calcium acid methanearsonate, Weedone Crabgrass Killer


Atlas Chemical Industries
A-209 Atlox 209FG surfactant
A-210 Atlox 210 surfactant

BASF Colors & Chemicals
H-170, H-170-1, H-210, H-210-1, H-226, H-231, H-232, H-243, H-245, H-249,
H-254, H-255, H-257 classified

Calgon Corp.
Calgon mixture of sodium phosphate, soda ash and other
carbonates of soda

Chemagro Corp.


C-5511, C-5533, C-6103


Chipman Chemical
RP-2929

CIBA Corp.
chloroxuron
cotoran
patoran
C-6313
C-6989

Colloidal Products
X-77


Classified


4-dimethylamino-thiocyanobenzene


N'-4-(4-chlorophenoxy)phenyl-N,N-dimethylurea, Tenoran
N-(3-trifluoromethylphenyl)-N',N'- dimethylurea, Cotoran
- (p-bromophenyl)-N' -methyl-N' -methoxyurea, Patoran
N- (T-bromo-3-chlorophenyl) NT-methoxy-N'-methylurea
2, 4'-dinitro-4-trifluorometyl-diphenylether


alkylarylpolyoxyethylene glycols







Crown Zellerbach Corp.
DMSO dimethyl sulfoxide

Diamond Alkali
DCPA dimethyl-2,3,5,6-tetrachloroterephthalate, Dacthal.

The Dow Chemical
pyriclor 2,3,5-trichloro-4-pyridinol, Daxtron

E. I. duPont de Nemours
bromacil 5-bromo-3-sec-butyl-6-methyluracil, Hyvar-X
H-732 5-chloro-3-tert-butyl-6-methyluracil, tensacil
H-767 a substituted uracil
Surf-WK dodecylether of polyethylene glycol, Surfactant WK

Esso Engineering & Research
EAP-250 a non-phytotoxic oil

Geigy Agricultural Chemicals
ametryne 2-ethylamino-4-isopropylamino-6-methylmercapto-s-triazine,
Ametryne
atrazine 2-chloro-4-ethylamino-6-isopropylamino-s-triazine, Atrazine
GS-13529 2-tert-butylamino-4-chloro-6-ethylamino-s-triazine
GS-13633 2-sec-butylamino-4-isopropylamino-6-methylthio-s-triazine
GS-14253 2-methylthio-4-ethylamino-6-sec-butylamino-s-trTazine
GS-14259 2-tert-butylamino-4-ethylami6o-6-methoxy- s Triazine
GS-14260 2-tert-butylamino-4-ethylamino-6-methylth o-s-triazine
GS-16040 2-methoxy-4-isopropylamino-6-(N-acetylethylamino)-s-
triazine

General Analine & Film Corp.
CA-620, C -630 octylphenoxypoly(e thyleneoxy)ethanols
CO-710 nonylphenoxypoly(etheyleneoxy)ethanol

Hercules Powder
norea 3-(hexahydro-4,7-methanoindan-5-yl)-l,1-dimethylurea,
Herban
Azak 2,6-di-tert-butyl-p-tolyl-methylcarbamate

American Hoechst
HOE-2907 classified

Eli Lilly & Company
benefin N-butyl-N-ethyl-a,a,a-trifluoro-2,6-dinitro-p-toluidine,
Balan
trifluralin a,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine,
Treflan





-9-


Monsanto Company
CDAA
CDEC
CP-31393
CP-31393 2,4-D
CP-41820
CP-43797
cP-45592
CP-46698
CP-50144
St-AA


2-chloro-N,N-diallylacetamide. Randox
2-chloroallyl diethyldithiocarbamate, Vegedex
N-isopropyl-a-chloroacetanilide, Ramrod
CP-31393 + 2,4-D acid, ratio 3:1, Roundup
classified
classified
2-bromo-6'-tert-butyl-N-(methoxymethyl)-o-acetotoluidide
classified
classified
Sterzo AA surfactant


NIvagara Chemical Division


DSMA -N
NIA-11092


disodium methanearsonate
1,1-dimethyl-3 -/-- (N-tert-butylcarbamyloxy)phenyl urea


Pennsalt Chemicals
TD-596, TD-906, TD-1015, TD-1281, TD-6019, TD-6042, TD-6068, TD-6078,
TD-6106 classified

Rohm & Haas


BV-201
BV-207
FW-925
X-100
X-114


Shell Development
SD-11831

Spencer Chemical
barban
cypromid
S-6173

Stauffer Chemical


EPTC
bensulide


1-(3,4-dichlorophenyl)-3-methyl-2-pyrrolidinone
1-(3-chloro-4-methylphenyl)-3-methyl-2-pyrrolidinone
2,4-dichlorophenyl-4-nitrophenyl ether, TOK-E-25
octylphenoxy polyethoxy ethanol, Triton X-100
do, Triton X-114


4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline


4-chloro-2-butynyl m-chlorocarbanilate, Carbyne
3',4'-dichlorocyclopropane carboxyanilide, S-6000
classified


ethyl N,N-dipropylthiolcarbamate, Eptam 6E
N-(beta-T,0-diisopropyldithiophosphorethyl)-
benzenesulfonamide, Betasan 4E


Sucro-Chemical Division
Suc-75, Suc-129, Suc-173, Suc-176, Suc-181, Suc-190, Suc-191, Suc-192, Suc-193
Suc-194, Suc-195, Suc-196, Suc-197 ethoxylated sucrose tallowates

Sun Oil Company


Sun 7N
Sun 11
Sun 11E


non-phytotoxic paraffin oil
non-phytotoxic paraffin oil
non-phytotoxic paraffin oil plus emulsifier system




-10-


Texaco, Inc.
T-522, T-769, TX-6140


Thompson-Hayward
TH-073-H

Union Carbide
UC-22463


low aromatic growth inhibitor oils


classified


25%(2,3-) and 75%(3,4-) isomers of dichlorobenzyl-
N-methylcarbamate


United States Sugar Corp.


2,4-D
2,4,5-T
BSM


The Upjohn Company
diphenamid
U-14611

Velsicol Chemical
dicamba
OCS-21693

OCS-21944

Vineland Chemical
AMA + 2,4-D


DSMA-V


dimethylamine of 2,4-dichlorophenoxyacetic acid
dimethylamine of 2,4,5-trichloroacetic acid
blackstrap molasses


N,N-dimethyl-2,2-diphenylacetamide, Enide
classified


2-methoxy-3,6-dichlorobenzoic acid
N-methoxy-N-methyl-2,3,5,6-tetrachloro-4-carbomethoxy-
benzamine
0,S-dimethyl tetrachlorothioterephthalate


8% dodecyl -- 8& octyl ammonium methanearsonate +
8% octyl ammonium salt of 2,4-D, Super Dal-E-Rad + 2
disodium methanearsonate, Dal-E-Rad 30.




-11-


Table 4.--Crop tolerance to preplanting incorporated herbicides on organic soil.
Values are percentages of untreated controls at 1 month after application.


Herbicide & Rate/A
Handweeded control
Untreated control
CDEC control
Rake, Ro-Wheel
trifluralin, 1 lb
3 lb
EPTC, 4 lb


Rotary t:


trifluralin,

EPTC, 4 lb
6 lb
ACP 65-313,


ACP 65-322, 2
4


benefit, 1
3
TD 6068, 8
bensulide,


lb
lb
lb
2.:
4
8:


S corn S
100o
100
100


iorghum Oat
100o lO0
100 100
87 100


Incorporation & Rolled


100- 62-
87 37
100 37


miller, Ro-Wheel
1 b1 37
3 lb 25
100
100 '
lb 87
lb 87
lb 100
lb 87
100
87
75
Lb 100
Lb 75
Lb 37


Rice
10 l
100
87_

100
87
100


100
75
62


Peanut
100%/
100
100

100
100
75


Incorporation & Rolled


62
0
0.
0
75
75
75
25
100
37
62
100
100
75


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


100
100
87
62
100
87
100
100
100
100
100
100
100
87


Soybean Snapbean
100 100
100 100
100 100


100
100
100

100
75
100
100
100
100
100
100
100
100
50
100
.100
87


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


Table 5.--Crop tolerance to preplanting incorporated herbicides on
Values are percentages of untreated controls at 1 month


organic soil.
after application


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
Rake, Ro-Wheel
trifluralin, 1 lb
3 lb


EPTC, 4 lb
Rotary ti
trifluralin, ]

EPTC, 4 lb
6 lb
ACP 65-313, 2
4
ACP 65-322, 2
4
benefin, 1 lb
3 lb
TD 6068, 8 lb
bensulide, 2
8


ller,
lb
3 lb


lb
lb
lb
lb



lb
lb
11


Indigo


Luu
100
62


100
100
- 87


qlimi c1


100%
100
87


Incorporation & Rolled


100
100
87
Ro-Wheel
37
0
25
12
1i0
100
100
87
75

87
100
87
87


87 100
87 75
100 100
Incorporation & Rolled


b2
37
50
37
100
100
100
100
100
87
87
100
100
100


75
37
87
"87
100
100
87
87
100-
87
87
100
100
87


Tiom +tr


100%
100
0 o


nt t4


100%
100
87


1005
100
100


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


100
100
87

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


100
100
100

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


*


Inda oouub Qh Mv rro + ase


--


T


Cucu h


l~^1 -





-12-


Table 6.--Crop tolerance to preplanting incorporated herbicides on organic soil.
Values are percentages of untreated controls at 1 month after application


Herbicide & Rate A
Handweeded control
Unweeded control
CDEC control


Cabbag
100o
100
100


:e R Cab Ch Cab
100% 100%
100 100
100 100


Rake, Ro-Wheel
trifluralin, 1 lb
3 lb
EPTC, 4 lb


Rotary
trifluralin,

EPTC, 4 lb
6 lb
ACP 65-313,

ACP 65-322,

benefit, 1 1
31
TD 6068, 8 1
bensulide, 2
4
8


tiller,
1 lb
3 Ib


2 Ib
4 lb
2 lb
4 lb
b
b
b
:Ib
lb
SIb


Incorporation & Rolled


100
100
37
Ro-Wheel
100
62
25
12
100
100
100
100
87
87
75
100
100
87


100
100
75


Incorporation & Rolled


d7
75
37
12
100
100
87
75
100
100
62
100
100
100


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


100
62
37

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


Table 7.--Weed response to preplanting incorporated herbicides on organic soil.
Values are percent control at 1 month after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
Rake, Ro-Wheel
trifluralin, 1 lb
3 lb
EPTC, 4 lb


Alexgr Goosegr Crabgr
100% 100 100
0 0 0
50 - 100 87
Incorporation & Rolled
75 75 75
87 87 87
50 50 50


Sedge
100
0
NC

NC
NC
NC


Amaranth Purslan


100l
0
100


100%,
0
100


Rotary tiller,
trifluralin, 1 lb
3 lb
EPTC, 4 lb
6 Ib
ACP 65-313, 2 lb
4 lb
ACP 65-322, 2 lb
4 lb
benefin, 1 lb
3 1b
TD-6068, 8 lb
benesulfide, 2 lb
4 lb
8 lb


Ro-Wheel Incorporation & Rolled


b7
87
87
100
50
50
50
62
37
87
50
25
37
37


NC = not controlled


Radish
10oo
100
87


Lettuce
o100
100
87


Romaine
100%
100
87


Endive
100
100
62


100
100
75


100
100
25

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


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


e Co~me:

0
75

NC
NC
NC


NC
NC
87
100
NC
NC
NC
NC
NC
NC
NC
37
50
87


NC
NC
87
100
NC
NC
NC
NC
NC
NC
NC
NC
iIC
NC


I


3


F i i ii


-- e







Table 8.--Crop tolerance to herbicides heated in BVI thermal fog apparatus and
applied preemergence on organic soil. Values are percentages of
untreated controls at 1 month after application.


Herbicide & Rate/A


Handweeded control
CDEC control
trifluralin, 3 lb
EPTC, 6 lb
CDEC, 4 lb
CDAA, 4 lb
OCS-21693, 4 lb
ACP 64-296B, 4 lb


Herbicide & Rate/A
Handweeded control
CDEC control
trifluralin, 3 lb
EPTC, 6 lb
CDEC, 4 Ib
CDAA, 4 lb
CCS-21693, 4 Ib
ACP 64-296B, 4 lb


Herbicide & Rate/A
Handweeded control
CDEC control_
trifluralin, 3 lb
EFTC, 6 lb
CDEC, 4 lb
CDAA, 4 lb
CCS-21693, 4 lb
ACP 64-296B, 4 lb


3 corn Sorghum Oat Rice
o100 1 100loo% 1oo
100 87 100 87


100
100
87
100
100
100


Indigo
100S
.62
100
100
75
62
87
62


Cabbage

100
100
100
100
87
87
62


100
87
100
87
87
62


Cucumb
100%
87
100
100
87
100
100
100


R Cab
100%
100
100
75
100
100
87
62


Squash
zoot
87
100
100
87
87
100
100


Ch Cab
100%
100
100
100
100
100
100
87


100
87
100
100
87
87


Tomato
100%
50
100
100
87
62
100
100


Radish
100%
87-
100
100
87
62
87
62


Peanut Soybean Snapbeai
100% 100% 100l
100 100 100


100
87
87
100
62
87


Carrot
10oo0
87
100
87
100
75
100
100


Lettuce
100%
-lO
87
87
87
87
50
62
62


100
100
87
87
100
87


100
100
100
87
100
100


Parsley
100%
loo%
100
87
100
100
87
100
100


Romaine
100oo
87
100
87
87
75
87
62


Endive
100l
62
100
87
100
50
75
75


Table 9.--Weed response to herbicides heated in BVI thermal fog apparatus and
applied preemergence on organic soil. Values are percent control at
1 month after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
trifluralin, 3 Ib
EPTC, 6 lb
CDEC, 4 lb
CDAA, 4 lb
OCS-21693, 4 lb
ACP 64-296B, 4 lb


Alexgr Goosegr
100% 1001
0 0
- -- 50 - -100
37 87
25 87
50 87
87 100
0 12
0 12


Crabgr
100o
0
81
87
87
87
100
12
12


Amaranth Purslane


Sedge
100%,
0
o
NC_
NC
87
NC
NC
NC
NC


100l
0
100
75
0
100
100
12
12


lOf
0
100
75
0
100
75
12
0


NC = not controlled


Commel


o100
0
75
NC
NC
50
50
NC
NC







Table 10.--Crop tolerance to preemergence-applied herbicides on organic soil. Value
are percentages of untreated controls at 1 month after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control


C-5511, 3 ib
6 Ib
C-5533, 3 lb
6 Ib
C-6103, 3 lb
6 lb
chloroxuron, 4 Ib
cotoran, 4 Ib
patoran, 4 lb
c-6313, 4 lb
8 Ib
0-6989, 4 lb
,l1


Acr 65-313, 2 lb
4 Ib
ACP 65-322, 2 lb
4 lb
ACP 65-81B, 4 lb
01' 65-236, 2 Ib
4 lb
ACP 65-237, 2 lb
4 lb
PAS1' 1-1.70, 4 Ib
8 lb
BASF H-170-3, 4 lb
8 lb
BASF H-210, 4 lb
8 lb
BASF H-210-1, 4 lb
8 lb
BASF H-226, 4 lb
8 Ib
BASF H-231, 4 lb
8 Ib
BASF H-232, 4 Ib
8 lb
BASF H-243, 4 lb
8 lb
BASF H-245, 4 Ib
8 lb
BASF H-249, 4 lb
8 lb
BASF H-254, 4 lb
8 Ib
BASF H-255, 4 lb
8 Ib
BASF H-257, 4 lb
8 lb


S corn
100l
100
100
100
100
100

100
100
100
100
100
100
100
87
87
100
100
100
75
87
87
100
100
87
62
100
100
100
100
100
87
100
100
87
75
100
87
I00
100
100
7
100
15O
87
100
)7
100
87
1GQ
&7


Sorghum
100O
100
- -100-.
100
87
87
75
75
75
62
100
100
100
75
87
87
87
87
100
75
87
87
87
75
62
50
87
87
62
62
75
62
87
87
37
12
50
25


62
50
87
87
75
100
87
75
37
87
7-


Oat
100Co
100
87
100
87
100
100
87
100
75
87
87
87
87
87
87
75
75
87
87
87
75
87
87
87
75
87
87
87
87
87
87
100
100
75
50
87
62
87
75
87
75
75
75
87
75
75
75
37

75


Rice
loo
100
100
75
75
62
62
62
62
62
62
62
37
37
25
25

o0
o0
o0
o0

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

100
87

100
87
75
62
50
50
50
87
87
87
87
O7
87
87


Peanut
1000
100
100
87
87
87
75
75
87
100
100
100
100
100
87
87
75
75
75
62
87
75
87
87
75
37
75
50
o
0
0


0
0
0
0
0
100
87
O0
0
0









100

100
75
O0
100
100







75

75


Soybean
100
100
100

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


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





-15-


Table ll.--Crop tolerance to preemergence-applied herbicides on organic soils.
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control


C-5511, 3 lb
6 lb
C-5533, 3 lb
6 Ib
C-6103, 3 lb
6 Ib
chloroxuron, 4 lb
cotoran, 4 lb
patoran, 4 Ib
c-6313, 4 lb
8 lb
c-6989, 4 lb
8 lb


ACP 65-313, 2
4
ACP 65-322, 2
4
ACP 65-81B, 4
ACP 65-236, 2
4
ACP 65-237, 2
4
BASF H-170, 4
8
BASF H-170-1,

BASF H-210, 4
8
BASF H-210-1,

BASF H-226, 4
8
BASF H-231, 4
8
BASF H-232, 4
8
BASF H-243, 4
8
BASF H-245, 4
8
BASF H-249, 4
8
BASF H-254, 4
8
BASF H-255, 4
8
BASF H-257, 4


Ib
lb
lb
lb
lb
lb
lb
Ib
lb
lb
lb
4 lb
8 lb
lb
lb
4 lb
8 Ib
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb


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




62
50
100
87
62
50


r


Cucumb
loo1000
100
100
100
100
87
100
100
100
100
87
100
100
87
62
62
0
0
0
0
75
75
100
100
0
0

0
0
0
37
0
50
25
25
12
100
87
100
7
87
75
7
75
100
62
75
75

50
Il


Squash
10%j
100
100
87
100
87
100
100
100
87
87
100
100
87
100
100
0
0
0
0
75
75
100
100
62
37
50
37
12
0
25
0
87
87
25
12
87
75
100
75
100

100
100
100
87
100
100
62
62
12


Tomato
100 W
100
- -00-
100
100
100
87
100
100
75
87
75
37
37
50
25
0
0
37
12
50
37
87
75
37
37
37
12
25
0
50
12
87
87
0
0
75
37
100
75
100
87
100
100
75
0
62
62
12
87
62


Carrot
100oo
100
100
87
75
62
62
100
100
87
87
100
87
87
87
75
75
75
87
75
75
75
87
75
87
50
50
12
62
12
100
75
100
100
87
87
100
100
100
87
100
100
87
87
75
100
75
100
50
100
87


Parsley
100%
100
100
87
87
50
62
100
100
62
62
87
37
25
37
35
0
0
25
25
25
25
100
87
75
75
25
0
37
12
87
87
87
87
37
12
62
25
75
25
87
100
100
100
100
37
62
87
62
87
62







Table 12.--Crop tolerance to preemergence applied herbicides on organic soil
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control


ACP 65-313, 2 lb
4 lb
ACP 65-322, 2 lb
4 lb
ACP 65-81B, 4 lb
ACP 65-236, 2 lb
4 lb
ACP 65-237, 2 lb
4 lb
BASF H-170, 4 lb
8 lb
BASF H-170-1, 4 lb
8 lb
BASF H-210, 4 lb
8 lb
BASF H-210-1, 4 lb
8 lb
BASF H-226, 4 lb
8 lb
BASF H-231, 4 lb
8 lb
BASF H-232, 4 lb
8 lb
BASF H-243, 4 lb
8 lb
BASF H-245, 4 lb
8 lb
BASF H-249, 4 lb
8 lb
BASF H-254, 4 lb
8 lb
BASF H-255, 4 lb
8 lb
BASF H-257, 4 lb
8 lb


0-5511, 3 lb
6 lb
0-5533, 3 lb
6 lb
0-6103, 3 lb
6 lb
chloroxuron, 4 lb
cotoran, 4 lb
patoran, 4 lb
C-6313, 4 lb
8 lb
C-6989, 4 lb
8 lb


Cabbage

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


R Cab
100%
100
-100
100
87
100
87
100
100
87
100
75
0
0
75
75
50
50
0
0
0
0
50
50
0
0
0
0
0
0
0
0
0
0
0
0
0
0
100
87
87
75
87
75
12
12
12
0
0
100
100


Ch Cab
100l
100
100
100
87
87
75
87
87
100
87
50
0
0
12
0
0
0
62
12
75
75
87
87
37
37
62
25
50
0
50
25
62
25
12
0
62
37
100
87
100
87
100
87
75
75
75
25
0
87
87


Radish
1005
100
-100
87
75
50
62
87
75
100
100
62
0
0
0
0
0
0
62
12
75
62
87
87
12
12
50
25
50
12
50
12
87
75
37
0
62
50
100
100
100
87
87
75
75
75
75
25
0
50
37


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


:e Romaine
100%
100
100
100
87
50
75
100
100
100
100
100
0
0
0
0
0
0
25
0
50
12
75
75
0
0
50
25
0
0
37
0
100
100
0
0
37
0
100
100
100
87
100
87
12
12
12
0
0
37
12


Endive
10l0
100
100
87
100
75
50
87
75
87
100
87
0
0
0
0
0
0
50
o
0
50
12
75
75
62
12
75
75
37
0
62
12
87
87
0
0
62
50
87
87
87
75
100
75
25
12
25
12
0
12
0.




-17-


Table 13.--Weed response to preemergence-applied herbicides on organic soil.
Values are percent control at 1 month after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control


ACP 65-313, 2
4
ACP 65-322, 2
4
ACP 65-81B, 4
ACP 65-236, 2
4
ACP 65-237, 2
4
BASF H-170, 4
8
BASF H-170-1,

BASF H-210, 4
8
BASF H-210-1,

BASF H-226, 4
8
BASF H-231, 4
8
BASF H-232, 4
8
BASF H-243, 4
8
BASF H-245, 4
8
BASF H-249, 4
8
BASF H-254, 4
8
BASF H-255, 4
8
BASF H-257, 4


C-5511, 3 lb
6 lb
C-5533, 3 lb
6 lb
C-6103, 3 lb
6 lb
chloroxuron, 4 lb
cotoran, 4 lb
patoran, 4 lb
C-6313, 4 lb
8 lb
C-6989, 4 lb
8 Ib
NC = not controlled


Crabgr Sedge


lb
lb
lb
lb
lb
lb
lb
lb
Ib
lb
lb
4 lb
8 lb
lb
lb
4 lb
8 lb
lb
lb
lb
Ib
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb
lb


T


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


Goosegr
100
0
100-_
12
25
12
25
50
12
25
12
25
0
25
12
25
25
87
25
75
12
25
12
25
25
37
12
25
25
87
12
75
0
12
75
100
12
25
25
25
12
12
0
12
25
12
12
25
87
25
50


lo00
0
87
12
12
12
12
12
12
12
12
12
0
25
12
12
12
87
12
75
12
12
12
12
12
12
12
12
25
75
12
75
0
12
62
75
o
12
12
12
0
12
0
12
12
12
12
12
87
12
37


100%
0
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC


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


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


Le Commel
100%
0
75
NC
NC
NC
NC
50
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
37
50
37
62




-18-


Table 14.--Crop tolerance to preemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
DCPA, 16 lb
pyriclor, 2 lb
4 lb
bromacil, 1-1/2 lb
H-732, 1-1/2 Ib
3 lb
H-767, 1-1/2 lb
3 lb
atrazine, 2 Ib
4 lb
GS-13529, 4 lb
8 Ib
GS-14253, 4 Ib
8 lb
GS-14259, 4 lb
8 Ib
GS-14260, 4 lb
8 lb
GS-16040, 4 lb
8 Ib
norea, 4 lb
8 lb
Azak, 8 lb
trifluralin, 3 lb
benefit, 3 lb
CDAA, 2 lb
4 Ib
CDEC, 2 lb
4 lb
CP-31393, 4 lb
8 lb
CP-31393 -- 2,4-D
4 + 1.33 lb
8 + 2.66 Ib
CP-41820, 4 Ib
8 Ib
CP-43797, 4 lb
8 lb
CP-45592, 3.75 lb
CP-46698, 4 lb
8 Ib


CP-50144,


4 lb
8 lb


S corn
100%
100
100
50
87
75
100
100
87
100
87
100
100
100
100
87
75
87
75
100
87
100
87
87
87
100
100
87
100
100
100
100
100
100

100
100
100
100
100
100
75
100
87
100
87


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

62
62
100
100
62
62
50
62
62
87
62


Oat
100lo
100
87
100
62
25
100
87
50
87
75
87
87
62
50
62
25
75
50
100
62
100
87
87
62
75
100
87
100
87
100
100
87
75

62
62
100
75
87
62
62
100
75
75
50


Rice
loonT
100%
100
- --100-
87
100
100
50
50
50
62
50
87
87
75
75
87
87
87
87
100
100
87
87
62
62
62
100
100
100
100
100
100
100
100

100
100
62
62
62
62
87
62
62
100
75


Peanut
loo0
100
100
100
100
100
100
75
75
100
87
100
100
75
37
87
62
87
50
100
75
100
87
100
87
87
100
87
100
100
100
100
100
87

87
75
100
87
100
75
100
100
100
100
62


Soybean
10%o,
100
100
100
100
62
100
87
12
100
75
100
100
75
51
87
62
87
50
87
37
100
87
87
62
100
100
100
100
87
100
100
100
100

87
87F
100
87
100
87
75
100
87
87
75


Snapbea.
100%
100
100
87
25
0
87
75
12
75
25
87
87
25
0
62
37
25
12
75
12
100
62
62
25
87
100
100
100
75
100
100
100
62

62
50F
100
100
100
75
12
62
62
25
12





-19-


Table 15.--Crop tolerance to preemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
DCPA, 16 lb
pyriclor, 2 lb
4 lb
bromacil, 1-1/2 lb
H-732, 1-1/2 lb
3 1b
H-767, 1-1/2 lb
3 lb
atrazine, 2 lb
4 lb
GS-13259, 4 lb
8 lb
GS-14253, 4 lb
8 lb
GS-14259, 4 lb
8 lb
GS-14260, 4 lb
8 lb
GS-16040, 4 lb
8 lb
norea, 4 lb
8 lb
Azak, 8 lb
trifluralin, 3 lb
benefin, 3 lb
CDAA, 2 lb
4 lb
CDEC, 2 lb
4 Ib
CP-31393, 4 lb
8 lb
CP-31393 + 2,4-D
4 + 1.33 lb
8 + 2.66 lb
CP-41820, 4 Ib
8 lb
cP-43797, 4 lb
8 lb
CP-45592, 3.75 lb
cP-46698, 4 lb
8 Ib
CP-50144, 4 lb
8 Ib


I


Indigo
lOOai
100
87 -
100
50
0
0
87
0
87
62
100
100
0
0
0
0
0
0
0
0
0
0
75
50
62
100
100
25
25
87
62
12
0

12
0
50
50
50
25
0
37
37

0
o
(j


Cucumb
100%
100
100
100
37
0
50
37
0
75
12
100
87
0
0
12
0
0
0
37
0
100
25
25
0
100
87
87
87
50
100
87
12
0

0
0
100
100
87
75
0
75
37
0
0


Squash
loo1
100
100
100
25
12
87
62
0
62
37
75
75
0
0
25
12
12
0
50
0
100
37
37
0
100
100
100
87
62
100
87
37
12

25
25
100
100
100
75
0
75
5o
0
0
0


Tomato
100l
100
100
37
25
0
0
0
0
0
0
37
12
0
0
0
0
0
0
0
0
0
0
87
0
100
100
100
37
25
75
50
25
12

25
12
100
100
50
50
0
37
0
0
0


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

0
0
87
75
100
100
50
100
100
37
0


Parsley
1007
100
100
100
75
25
37
25
0
50
25
100
75
62
37
50
37
50
37
87
75
87
50
87
62
62
87
100
100
100
100
100
62
37

25
0
100
87
87
87
75
100
100
37
12







Table 16.--Crop tolerance to preemergence-applied
are percentages of untreated controls


herbicides on organic soil. Value
at 1 month after application.


Herbicide & Rate
Handweeded contr
Unweeded control
CDEC control
DCPA, 16 lb
pyriclor, 2 lb
pyriclor, 4 lb
bromacil, 1-1/2
H-732, 1-1/2 lb
3 lb
H-767, 1-1/2 lb
3 lb
atrazine, 2 lb
4 lb
GS-13529, 4 lb
8 lb
GS-14253, 4 lb
8 lb
GS-14259, 4 lb
8 lb
GS-14260, 4 lb
8 lb
GS-16040, 4 lb
8 lb
norea, 4 lb
8 lb
Azak, 8 lb
trifluralin, 3 1
benefit, 3 lb
CDAA, 2 lb
4 lb
CDEC, 2 lb
4 lb
CP-31393, 4 lb
8 lb
CP-31393 2,4-D
4 + 1.33
8 + 2.66
CP-41820, 4 lb
8 lb
CP-43797, 4 lb
8 lb
CP-45592, 3.75 1
CP-46698, 4 lb
8 lb
CP-50144, 4 lb
8 lb


/A Cabbage
ol 100%
100
100
100
50
0
lb 0
0
0
0
0
100
25
0
0
0
0
0
0
0
0
50
0
0
0
50
b 100
100
100
87
100
100



Ib 75
Ib 25
100
87
100
100
-b 50
25
0
75
37


R Cab
100
100
-100
100
12
0
0
0
0
0
0
100
50
0
0
0
0
0
0
0
0
0
0
0
0
50
100
100
100
100
100
100
100
100

50
12
100
87
100
100
12
0
0
37
12


Ch Cab
100%
100
100
87
12
0
37
12
0
25
0
87
87
0
0
0
0
0
0
0
0
25
12
87
12
87
50
50
87
87
100
100
100
100

87
62
100
100
100
87
0
62
12
25
0


T


Radish
1007
100
l00-
62
12
0
0
0
0
12
0
75
75
0
0
0
0
0
0
0
0
37
37
75
12
87
100
62
100
100
100
87
100
87

87
62
87
87
100
87
37
75
50
25
12


Lettuc
1000/
100
100
62
37
0
37
0
0
12
0
62
0
0
0
0
0
0
0
0
0
0
0
50
12
75
87
100
37
12
87
87
0
0

0
0
100

75
12
0
25
0
0
0


:e Romain
100
100
1000
75
12
0
37
0
0
12
0
87
0
0
0
0
0
0
0
0
0
o
o
50
12
75
87
100
12
0
100
87
0
0

0
0
100
87
75
12
0
25
0
0
0


Endive
o100
100
100
87
50
0
25
12
0
12
0
87
50
0
0
0
0
0
0
0
0
12
12
87
50
87
87
100
37
12
87
62
12
0

0
0
87
75
75
25
0
37
12
0
0




-21-


Table 17.--Weed response to preemergence-applied herbicides on organic soil.
Values are percent control at 1 month after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
DCPA, 16 lb
pyriclor, 2 lb
pyriclor, 4 lb
bromacil, 1-1/2 lb
H-732, 1-1/2 lb
3 lb
H-767, 1-1/2 lb
3 lb
atrazine, 2 lb
4 lb
GS-13529, 4 Ib
8 lb
GS-14253, 4 Ib
8 lb
GS-14259, 4 lb
8 lb
GS-14260, 4 Ib
8 Ib
GS-16040, 4 lb
8 lb
norea, 4 Ib
8 lb
Azak, 8 Ib
trifluralin, 3 lb
benefin, 3 lb
CDAA, 2 lb
4 lb
CDEC, 2 Ib
4 lb
CP-31393, 4 lb
8 lb
CP-31393 -- 2,4-D
4 + 1.33 lb
8 + 2.66 lb
CP-41820, 4 lb
8 lb
CP-43797, 4 lb
8 lb
CP-45592, 3.75 lb
CP-46698, 4 lb
8 lb
CP-50144, 4 lb
8 lb


87
87
37
50
25
50
62
25
37
87
100


*


Alexgr Goosegr Crabgr
100, 100% 100%
1 0 0 0
S5 - 100 l _
12 25 12
37 50 50
87 100 87
12 25 25
12 25 25
62 75 62
0 25 12
25 50 37
12 25 25
12 37 25
50 75 75
62 87 100
62 87 100
82 100 100
62 75 87
82 100 87
62 75 75
92 87 100
0 50 37
0 62 62
0 25 37
37 50 37
0 25 25
37 50 37
25 37 25
75 87 87
62 87 100
37 75 87
37 87 87
62 62 75
87 87 100


Sedge

0
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
50
50
NC
NC
NC
NC
87
87
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
50

50
62
NC
NC
NC
NC
NC
NC
NC
NC
75


Amarar
100
0
100
100
100
100
62
100
100
62
100
100
100
100
100
100
100
100
100
100
100
100
100
12
62
0
75
62
100
100
100
100
87
100

100
100
0
12
87
100
100
100
100
100
100


Ith Purslane
100%
0
100
100
25
87
50
87
100
25
37
75
100
100
100
100
100
100
100
100
100
62
62
0
25
0
37
25
100
100
100
100
50
75

75
100
0
0
87
100
100
100
100
100
100


Commel
1000
0
75_
NC
NC
NC
75
NC
NC
NC
NC
NC
100
100
100
50
100
50
100
37
87
NC
NC
NC
NC
NC
NC
NC
87
87
75
87
NC
NC

NC
NC
NC
NC
NC
NC
NC
NC
NC
37
100




-22-


Table 18.--Crop tolerance to preemergence-applied herbicides on organic soils.
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
NIA 11092, 4 lb
8 lb
TD-596, 5.3 lb
TD-906, 8 lb
TD-1015, 8 lb
TD-1281, 8 lb
TD-6019, 4 lb
TD-6042, 2 lb
TD-6106, 4 lb
FW-925, 6 lb
BV-201, 3 lb
6 lb
BV-207, 3 lb
6 lb
SD-11831, 4 lb
8 lb
barban, 8 lb
S-6173, 8 lb
bensulide, 2 Ib
4 lb
8 lb
EPTC, 6 lb
UC-22463, 5 lb
10 Ib
diphenamid, 4 lb
8 1b


dicamba, 2
6
OCS-21944,

CCS-21693,


lb
lb
4 lb
8 lb
4 lb
8 lb


S corn
100
100

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


Sorghum
100%
100
- 100 -
62
25
75
75
75
62
87
87
87
50
50
50
87
75
75
50
87
100
87
87
62
87
50
50
87
75
62
0
87
87
100
87


Oat
o100%
100
87
87
37
62
100
87
62
75
62
87
62
87
75
100
87
87
75
87
87
100
100
87
75
100
87
100
100
87
50
87
87
100
75


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


Peanut
100l
100
100
87
62
87F
75
87
87
100
87
87
100
87
100
100
87
100
100
100
87
100
100
100
87
100
100
100
100
0
0
100
87
100
100


Soybean
100o
100
100
87
62
75F
87F
87F
62F
87F
100
87F
100
100
100
100
100
100
100
100
87
100
100
87
100
100
100
100
lOo
100
0
0
100
100
100
100


Snapbean
100
100
100
62
12
25F
100
87
75
62F
87
62F
87
100
100
100
87
100
100
100
100
100
100
100
100
100
100
87
87
0
0
100
100
100
100





-23-


Table 19.--Crop tolerance to preemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
NIA 11092, 4 lb
8 lb
TD-596, 5.3 lb
TD-906, 8 lb
TD-1015, 8 lb
TD-1281, 8 lb
TD-6019, 4 lb
TD-6042, 2 lb
TD-61C6, 4 lb
FW-925, 6 lb
BV-201, 3 lb
6 lb
BV-207, 3 lb
6 lb
SD-11831, 4 lb
8 lb
barban, 8 lb
S-6173, 8 lb
bensulide, 2 lb
4 lb
8 lb
EPTC, 6 lb
UC-22463, 5 lb
10 lb
diphenamid, 4 lb
8 lb
dicamba, 2 lb
6 lb
OCS-21944, 4 lb
8 lb
CCS-21693, 4 lb
8 Ib


Indigo Cucumb
100w 100%
100 100
87 100
0 0
0 0
0 25
0 87
50 100
50 87
50 75F
50 87
50 50F
62 87
50 100
50 100
50 87
50 87
50 100
50 87
50 100
50 100
50 100oo
50 100
50 87
50 87
50 100oo
50 87
100 87
100 87
0 0
0 0
100 100
100 100
100 87
37 12


Squash
loo10
100
100
0
0
12
100
100
100
62F
87
62F
100
100
100
100
100
100
87
100
100
100
100
87
87
100
87
100
100
l0







0
100
62F















75
100
100
100






87
87

100
87
100
100
0
0
100
75
75
12


I


Tomato
loo^T
100
100
--100-
0
0
0
12
0
0
0
0
0
0
0
0
0
0
12
12
25
50
75
62
25
0
0
0
87
87
100
100
37
37
12
12


Carrot
100%
ioo~
100
100
0
0
0
75
87
62
50
50
62
87
100
75
100
87
87
75
75
100
100
100
75
100
87
75
100
100
62
12
100
100
75
25


Parsley
1007
100
100
0
0
25
62
0
0
50
50,
50
87
100
100
87
75
100
100
75
87
100
100
100
100
75
75
100
100
50
25
100
100
75
25




-24-


Table 20.--Crop tolerance to preemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 1 month after
application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
NIA 11092, 4 lb
8 1b
TD-596, 5.3 lb
TD-906, 8 lb
TD-1015, 8 lb
TD-1281, 8 Ib
TD-6019, 4 lb
TD-6042, 2 lb
TD-6106, 4 lb
FW-925, 6 lb
BV-201, 3 lb
6 lb
BV-207, 3 Ib
6 lb
SD-11831, 4 lb
8 Ib
barban, 8 Ib
S-6173, 8 lb
bensulide, 2 lb
4 lb
8 lb
EPTC, 6 lb
UC-22463, 5 lb
10 lb
diphenamid, 4 lb
8 lb
dicamba, 2 lb
6 lb
OCS-21944, 4 lb
8 lb
OCS-21693, 4 lb
8 lb


Cabbage
o10o
100
100
0
0
0
87
0
62
75
75
37
100
87
75
100
75
100
100
87
87
100
100
87
87
100
100
100
100
37
12
87
87
100
100


R Cab
o10o0
100
100
0
0
0
75
0
37
75
50
50
87
87
75
50
50
100
100
75
75
100
100
87
87
100
100

100
25
12
87
87
100
87


Ch Cab
100%
100
100
0
0
0
87
87
87
75
62
37
87
87
75
100
75
100
100
100
87
100
100
50
75
67
87
87
87
37
12
100
100
100
100


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


Lettuce
o100
100
100
0
0
0
75
62
62
0
0
50
75
75
62
0
0
87
87
75
87
100
100
87
87
87
87
100
100
O0
0
0
87
75
87
87


Romaine
loo%
100%
100
100
0
0
0
75
62
62
75
75
62
100
75
62
0
0
87
87
100
100
100
100
100
87
100
100
100
100
0
0
87
75
87
87


Endive


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




-25-


Table 21.--Weed response to preemergence-applied herbicides on organic soil.
Values are percent control at 1 month after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
CDEC control
NIA 11092, 4 lb
8 .lb
TD-596, 5.3 lb
TD-906, 8 lb
TD-1015, 8 lb
TD-1281, 8 Ib
TD-6019, 4 Ib
TD-6042, 2 lb
TD-6106, 4 lb
FIT-925, 6 lb
BV-201, 3 lb
6 lb
BV-207, 3 lb
6 lb
SD-11831, 4 lb
8 lb
barban, 8 lb
S-6173, 8 lb
bensulide, 2 lb
4 lb
8 lb
EFTC, 6 Ib
UC-22463, 5 lb
10 lb
diphenamid, 4 lb
8 lb
dicamba, 2 lb
6 lb
OCS-21944, 4 lb
8 lb
OCS-21693, 4 lb
8 lb


Alexgr
100%.
0
50
37
50
75
12
0
0
12
0
0
0
0
0
0
0
0
12
0
0
0
0
0
0
0
12
0
0
12
37
0
0
0
0


Goosegr
'0
100
50
62
87
25
12
12
25
12
12
25
12
25
12
25
12
25
0
0
0
12
25
50
12
25
12
12
12
25
12
25
12
12


Crabgr

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


Sedge

0
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
37
62
75
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC


Amaran
100
0
100
100
100
92
37
0
12
25
0
75F
0
0
25
12
25
37
87
0
0
0
12
25
62
100
100
25
25
100
100
12
12
0
12


th Purslane C
1005
0
100
l--oo- -
25
87
92
37
0
0
0
0
25
0
0
0
50
87
25
37
0
0
0
0
o
25
75
87
0
0
100
100
50
75
0
0


Compel
100%
0

NC
NC
NC
NC
NC
NC
NC
NC
75
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Nc
NC
NC
NC
NC




-26-


Table 22.--Crop tolerance to postemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 10 days after
application.

Herbicide & Rate/A S corn Sorghum Oat Rice Peanut Soybean Snapbean
Handweeded control 100% l00 10010 100l 100 1'00%oo 100'
ACD-10614, 10 lb 0 0 0 50 0 0 0
CMA, 4 lb 50 12 25 0 25 25 37
*ACP 63-224, 2 lb 12 12 12 62 50 25 13
*ACP 64-613, 2 Ib 87 62 75 75 37 25 37
BASF H-170, 2 Ib 100 87 75 62 62 87 50
BASF H-170-1, 2 lb 87 87 87 62 25 37 12
BASF H-210, 2 Ib 37 25 62 50 0 25 25
BASF-H-210-1, 2 lb 37 12 25 37 0 12 12
BASF H-226, 2 lb 62 62 62 50 25 25 25
BASF H-231, 2 lb 75 62 50 50 25 50 37
BASF H-232, 2 lb 87 50 75 50 12 12 25
BASF H-243, 2 lb 75 37 62 50 12 12 12
BASF H-245, 2 Ib 37 37 37 62 0 12 0
BASF H-249, 2 Ib 62 50 37 62 0 25 0
BASF H-254, 2 lb 100 100 87 62 75 87 50
BASF H-255, 2 lb 75 37 50 87 25 25 12
BASF H-257, 2 lb 100 62 62 50 37 37 12
C-5511, 4 lb 87 50 75 87 25 12 12
C-5533, 4 1b 75 37 75 37 0 0 37
C-6103, 4 lb 87 62 100 37 0 0 50
RP-2929, 1-1/4 lb 87 62 87 37 25 50 25
*RP-2929, 1-1/4 lb 75 37 87 37 25 50 25
*RP-2 929, 5/8 lb 87 50 75 37 25 50 25
*chloroxuron, 2 lb 62 37 37 62 0 25 25
*cotoran, 2 lb 100 100 50 87 12 12 12
*patoran, 2 lb 87 75 25 75 0 0 12
*C-6313, 2 lb 12 0 0 12 0 0 0
*C-6989, 2 lb 75 50 75 87 25 62 75
pyriclor, 1/4 lb 25 0 0 0 12 12 0
1/2 Ib 12 0 0 0 12 0 0
bromacil, 1/2 lb 50 37 50 25 0 0 0
H-732, 1/2 Ib 37 12 25 12 0 0 0
1-1/2 lb 12 0 12 0 0 0 0
H-767, 1/2 lb 75 75 50 50 0 0 0
1-1/2 lb 50 25 25 50 0 0 0
ametryne, 1/2 Ib 62 12 25 25 0 0 0
1 lb 62 12 37 25 0 0 0
GS-13529, 2 Ib 100 87 37 37 0 12 0
GS-13633, 2 Ib 62 0 12 12 0 0 0
GS-14253, 2 lb 50 0 0 0 0 0 0
GS-14259, 2 1b 87 0 0 0 0 0 0
GS-14260, 2 lb 75 0 0 0 0 0 0
GS-16040, 2 Ib 87 62 0 0 0 0 0


* These treatments included surfactant A-209 at 1/2% v/v.




-27-


Table 23.--Crop tolerance to postemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 10 days after
application.

Herbicide & Rate/A Indigo Cucumb Squash Tomato Carrot Parsley
Handweeded control 100% 100c 100/ 100 100 1
ACD-10614, 10 lb 0 0 0 0 0 0
CMA, 4 lb 0 75 25 37 62 50
*ACP 63-224, 2 lb 0 12 0 0 0 0
*ACP 64-613, 2 lb 0 0 0 0 0 0
BASF H-170, 2 lb 0 25 37 0 0 0
BASF H-170-1, 2 lb 0 87 87 0 0 0
BASF H-210, 2 Ib 0 0 0 0 62 25
BASF H-210-1, 2 lb 0 12 37 0 50 12
BASF H-226, 2 Ib 0 0 25 0 0 0
BASF H-231, 2 lb 0 12 37 0 0 0
BASF H-232, 2 lb 0 12 12 0 0 0
BASF H-243, 2 lb 0 0 12 0 0 0
BASF H-245, 2 lb 0 0 0 0 12 0
BASF H-249, 2 lb 0 0 0 0 12 0
BASF H-254, 2 lb 0 25 50 37 87 75
BASF H-255, 2 lb 0 0 12 0 37 12
BASF H-257, 2 lb 0 0 12 0 0 0
C-5511, 4 lb 0 25 25 0 0 0
C-5533, 4 lb 0 12 12 12 0 0
C-6103, 4 lb 0 50 25 37 0 0
RP-2929, 1-1/4 lb 0 12 25 25 37 37
*RP-2929, 1-1/4 lb 0 12 25 12 37 37
*RP-2929, 5/8 lb 0 12 25 12 25 25
*chloroxuron, 2 lb 0 0 0 0 37 0
*cotoran, 2 lb 0 0 0 0 12 0
*patoran, 2 lb 0 0 0 0 25 0
*c-6313, 2 lb 0 0 0 0 75 0
*C-6989, 2 lb 0 0 0 0 87 0
pyriclor, 1/4 lb 0 0 0 0 0 0
1/2 lb 0 0 0 0 0 0
bromacil, 1/2 lb 0 0 0 0 0 0
H-732, 1/2 lb 0 0 0 0 0 0
1-1/2 lb 0 0 0 0 0 0
H-767, 1/2 lb 0 0 0 0 0 0
1-1/2 lb 0 0 0 0 0 0
ametryne, 1/2 lb 0 0 0 0 0 0
1 lb 0 0 0 0 0 0
GS-13529, 2 lb 0 0 0 0 0 12
GS-13633, 2 lb 0 0 0 0 62 25
GS-14253, 2 1b 0 0 0 0 0 0
GS-14259, 2 lb 0 0 0 0 0 0
GS-14260, 2 Ib 0 0 0 0 0 0
GS-16040, 2 lb 3 0 0 0 0 0


* These treatments included surfactaTrt A-209 at 1/2T v/v.




-28-


Table 24.--Crop tolerance to postemergence-applied herbicides on organic soils.
Values are percentages of untreated controls at 10 days after
application.

Herbicide & Rate/A Cabbage R Cab Ch Cab Radish Lettuce Romaine Endive
Handweeded control 1. 00% 10i0- 100 1005 10o0 100% 10
ACD-10614, 10 lb 0 0 0 0 0 0 0
CMA, 4 lb 0 0 25 0 12 12 12
*ACP 63-224, 2 lb 0 0 0 0 0 0 0
*ACP 63-613, 2 lb 0 0 0 0 0 0 0
BASF H-170, 2 lb 0 0 12 12 0 0 0
BASF H-170-1, 2 lb 0 0 12 12 0 0 0
BASF H-210, 2 lb 0 0 25 0 0 0 0
BASF H-210-1, 2 lb 0 0 62 0 0 0 0
BASF H-226, 2 lb 0 0 37 37 0 0 37
BASF H-231, 2 lb 0 0 50 37 0 0 0
BASF H-232, 2 lb 0 0 37 25 0 0 12
BASF H-243, 2 lb 0 0 12 0 0 0 0
BASF H-245, 2 Ib 0 0 25 0 0 0 0
BASF H-249, 2 Ib 0 0 37 0 0 0 0
BASF H-254, 2 lb 87 50 87 75 0 0 0
BASF H-255, 2 lb 0 0 12 0 0 0 12
BASF H-257, 2 lb 0 0 37 12 0 0 25
C-5511, 4 lb 0 0 25 0 0 0 25
C-5533, 4 lb 0 0 12 0 0 0 12
C-6103, 4 lb 0 0 37 12 0 0 37
RP-2929, 1-1/4 lb 0 0 25 12 0 0 12
*RP-2929, 1-1/4 lb 0 0 12 25 0 0 0
*RP-2929, 5.8 lb 0 0 0 12 0 0 0
*chloroxuron, 2 lb 0 0 0 0 0 0 0
*cotoran, 2 lb 0 0 0 0 0 0 0
-patoran, 2 lb 0 0 0 0 0 0 0
*C-6313, 2 Ib 0 0 0 0 0 0 0
*C-6989, 2 lb 0 0 37 25 0 0 12
pyriclor, 1/4 lb 0 0 0 0 0 0 0
1/2 Ib 0 0 0 0 0 0 0
bromacil, 1/2 lb 0 0 0 0 0 0 0
H-732, 1/2 lb 0 0 0 0 0 0 0
1-1/2 lb 0 0 0 0 0 0 0
H-767, 1/2 lb 0 0 0 0 0 0 0
1-1/2 0 0 0 0 0 0 0
ametryne, 1/2 lb 0 0 0 0 0 0 0
1 lb 0 0 0 0 0 0 0
GS-13529, 2 lb 0 0 0 0 0 0 0
GS-13633, 2 1b 0 0 0 0 0 0 0
GS-14253, 2 lb 0 0 0 0 0 0 0
GS-14259, 2 lb 0 0 0 0 0 0 0
GS-14260, 2 ib 0 0 0 0 0 0 0
GS-16040, 2 Ib 0 0 0 0 0 0 0


usrfactant A-20v at 1/2o v/v.


* These treatments included





-29-


Table 25.--Weed response to postemergence-applied
Values are percent control at 1 month


herbicides on organic soil.
after application.


Herbicide & Rate/A
Handweeded control
Unweeded control
ACD 10614, 10 lb
CMA, 4 lb
ACP 63-224, 2 lb
*ACP 63-613, 2 lb
BASF H-170, 2 lb
BASF H-170-1, 2 lb
BASF H-210, 2 lb
BASF H-210-1, 2 lb
BASF H-226, 2 lb
BASF H-231, 2 lb
BASF H-243, 2 lb
BASF H-245, 2 lb
BASF H-249, 2 lb
BASF H-254, 2 lb
BASF H-255, 2 lb
BASF H-257, 2 lb
C-5511, 4 Ib
0-5533, 4 lb
C-6103, 4 lb
RP-2929, 1-1/4 lb
*RP-2929, 1-1/4 lb
*RP-2929, 5/8 lb
*chloroxuron, 2 Ib
*cotoran, 2 lb
*patoran, 2 lb
*C-6313, 2 lb
*C-6989, 2 lb
pyriclor, 1/4 lb
1/2 lb
bromacil, 1/2 lb
H-732, 1/2 lb
1-1/2 Ib
H-767, 1/2 lb
1-1/2 lb
ametryne, 1/2 lb
1 Ib
GS-13529, 2 lb
GS-13633, 2 lb
GS-14253, 2 lb
GS-14259, 2 lb
GS-14260, 2 lb
GS-16040, 2 lb


*


Amaranth Purslane Commel


Alexgr
100 O
0
92
62
37
0
0
0
0
50
0
0
12
62
50
0
37
25
37
0
0
0
0
0
50
75
62
87
37
62
87
50
75
87
50
62
75
75
12
82
100
87
100
62


Goosegr
100
0
100
75
50
12
12
12
12
62
12
12
25
75
62
12
50
37
50
12
12
12
12
0
62
87
75
92
50
75
92
75
87
92
75
87
75
100
25
87
100
92
100
75


1f.)U,


Crabgr

0
100
62
37
12
12
12
12
50
12
12
12
75
62
12
37
37
50
12
12
12
12
0
62
75
62
87
50
62
92
75
75
92
62
87
75
100
25
87
100
100
100
87


* These treatrrmnts included surfactant A-209 at 1/20 v/v.


0 12 12 NC


** BASF H-232, 2 lb


50 75 NC


Sedge
100
0
100
12
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
50
75
75
87
NC
NC
NC
NC
NC
NC
75
75
75
87


100%
0-
100
75
62
87
12
25
0
0
0
12
100
100
12
0
100
87
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100


100oo
0 -
100
75
50
50
0
0
50
50
50
75
100
100
50
0
100
87
100
75
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100


10

100
75
NC
NC
NC
NC
NC
NC
NC
NC
NC
75
NC
NC
NC
NC
100
NC
NC
NC
NC
NC
NC
NC
NC
100
NC
NC
NC
100
100
100
100
100
100
100
100
100
100
100
100
100




-30-


Table 26.--Crop tolerance to postemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 10 days after
application.


Herbicide & Rate/A
Handweeded control
*norea, 2 lb
*Azak, 2 lb
HOE-2907, 2
CP-41820, 4 lb
CP-43797, 4 lb
cP-46698, 4 lb
CP-50144, 4 lb
DSMA-N, 4 lb
*NIA 11092, 1 lb
2 lb
TD-6019, 0.8 lb
TD-6068, 1 lb
TD-6078, 2 lb
TD-6106, 1 lb
FW-925, 2 lb
BV-201, 2 lb
BV-207, 2 lb
SD-11831, 2 lb
4 lb
*SD-11831, 2 lb
barban, 1 Ib
2 lb
S-6000, 1 lb
2 lb
4 lb
*s-6000, 1 lb
s-6173, 2 lb
*TH-073-H, 2 lb
UC-22463, 4 lb
*UC-22463, 4 lb
U-14611, 4 lb
*U-14611, 4 lb
2,4,5-T, 1-1/2 lb
3 lb
2,4-D, 1-1/2 lb +
BSM 1 gpa
*OCS-21944, 1 lb


oCS-21693,
AMA + 2,4-1
DSMA-Y, 4 3


2 lb
4 lb
2 lb
): 4 + 2 lb
Lb


--


'


'


I


*These treatments included surfactant A-209 at 1/2dS v/v.


S Corn
100w
37
100
100
12
37
25
100
37
12
62
100
100
87
87
75
87
87
100
100
87
75
50
50
25
12
12
37
100
75
37
37
25
62
50

37
87
87
87
87
62
37


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

25
100
87
75
62
12
12


Oat
100%,
37
87
87
0
0
25
87
37
25
62
87
50
37
50
75
50
62
100
87
87
37
37
12
12
0
12
37
75
62
37
25
12
25
62

37
87
87
87
87
12
50


Rice
100l%
62
75
62
37
0
12
87
0

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

25
87
87
87
87
0
0


Peanut
lOo0
0
75
37
0
12
0
37
50
100
0
0
50
50
12
12
25
25
87
87
87
75
75
o
o
0
0
12
50
12
12
0
0
0
0

0
12
12
25
25
0
50


Soybean

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

0
25
25
37
50
o
62


Snapbear

12
87
12
0
12
0
12
62

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

0
25
25
25
37
12
50




-31-


Table 27.--Crop tolerance to postemergence-applied herbicides on organic soil.
Values are percentages of untreated controls at 10 days after
application.


Herbicide & Rate/A
Handweeded control
*norea, 2 lb
*Azak, 2 lb
HOE-2907, 2 lb
CP-41820, 4 Ib
CP-43797, 4 lb
cP-46698, 4 lb
CP-50144, 4 lb
DSMA-N, 4 lb
*NIA 11092, 1 lb
* 2 Ib
TD-6019, 0.9 lb
TD-6068, 1 lb
TD-6078, 2 lb
TD-6106, 1 Ib
FW-925, 2 lb
BV-201, 2 lb
BV-207, 2 lb
SD-11831, 2 lb
4 lb
*SD-11831, 2 lb
barban, 1 lb
2 lb
S-6000, 1 lb
2 lb
4 lb
*S-6000, 1 lb
S-6173, 2 lb
*TH-073-H, 2 lb
UC-22463, 4 lb
*UC-22463, 4 lb
U-14611, 4 lb
*U-14611, 4 lb
2,4,5-T, 1-1/2 Ib
3 Ib
2,4-D, 1-1/2 lb +
BSM 1 gpa
*OCS-21944, 1 lb
*2 Ib


C 4
0CS-21693, 2
AMA + 2,4-D:
DSMA-V, 4 lb


lb
lb
4 + 2 lb


Cucumb Squash Tomato
100 100 100%


Indigo
100
0
0
0
0
0
0
0
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

0
37
37
37
37
0
25


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

0
12
12
25
37
25
62


*These treatments included surfactant A-209 at 1/2% v/v.


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

0
12
12
25
37
0
50


I


I


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

0
12
12
12
12
0
50


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

0
37
37
37
37
0
100


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

0
37
37
37
37
0
75




-32-


Table 28.--Crop tolerance to postemergence applied herbicides on organic soil.
Values are percentages of untreated controls at 10 days after
application.


Herbicide & Rate/A
Handweeded control
*norea, 2 lb
*Azak, 2 lb
HOE-2907, 2 lb
CP-41820, 4 lb
CP-43797, 4 lb
CP-46698, 4 lb
CP-50144, 4 lb
DSMA-N, 4 lb
*NIA 11092, 1 lb
2 lb
TD-2019, 0.8 lb
TD-6068, 1 lb
TD-6078, 2 lb
TD-6106, 1 lb
FW-925, 2 lb
BV-201, 2 lb
BV-207, 2 lb
SD-11831, 2 lb


*SD-11831,
barban, 1
2
S-6000, 1
2


4 lb
2 lb
lb
Ib


4 lb
*s-6000, 1 lb
S-6173, 2 lb
*TH-073-H, 2 lb
UC-22463, 4 lb
*UC-22463, 4 lb
U-14611, 4 lb
*U-14611, 4 lb
2,4,5-T, 1-1/2 lb
3 lb
2,4-D, 1-1/2 lb +
BSM 1 gpa
*OCS-21944, 1 lb


2 lb
4 lb
OCS-21693, 2 lb
AMA + 2,4-D: 4 2
DSMA-V, 4 lb


* These treatments included surfactant A-209 at 1/2% v/v.


I


Cabbage

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

0
62
62
62
62
Lb 0
0


R Cab
100oo
0
50
37
12
0
o
0
0
0
0
0
0
0
50
25
25
0
0
50
50
50
75
87
0
0
0
0
0
37
o
0
0
0
0
0

0
62
62
62
62
0
0
o


Ch Cab
100%
0
87
37
12
25
0
25
25
0
0
50
62
87
25
75
25
37
100
100
100
100
100
12
0
0
0
50
37
0
o
0
0
0
25
0

0
25
25
50
37
37
12


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

0
37
37
50
37
0
12


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

0
37
37
37
37
12
37


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

0
37
37
37
37
12
50


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

0
50
50
50
50
12
87




-33-


Table 29.--Weed response to preemergence-applied herbicides on organic soil.
Values are percent control at 10 days after application.


Herbicide & Rate/A
Handweeded control
Unweeded control


*norea, 2 lb
*Azak, 2 lb
HOE-2907, 2 Ib
CP-41820, 4 Ib
CP-43797, 4 lb
CP-46698, 4 lb
CP-50144, 4 lb
DSNA-N, 4 lb
*NIA 11092, 1 lb
* 2 Ib
TD-6019, 0.8 lb
TD-6068, 1 lb
TD-6078, 2 lb
TD-6106, 1 lb
FW-925, 2 lb
BV-201, 2 lb
BV-207, 2 lb
SD-11831, 2 Ib
4 lb
*SD-11831, 2 Ib
barban, 1 lb
2 lb
S-6000, 1 lb
2 lb
4 lb
*S-6000, 1 lb
S-6173, 2 lb
*TH-073-H, 2 lb
UC-22463, 4 lb
*UC-22463, 4 Ib
U-14611, 4 lb
*U-14611, 4 lb
2,4,5-T, 1-1/2
3


2,4-D, 1-1/2 lb +
BSM 1 gpa
*OCS-21944, 1 lb
*2 Ib


4
OCS-21693, 4
AMA + 2,4-D:
DSMA-V, 4 Ib


lb
lb
4 + 2


Alexgr
100%
0
50
0
0
92
82
75
50
37
12
50
12
0
0
0
0
0
0
0
0
0
0
0
75
87
92
62
0
0
12
12
62
75
37
37

37
0
0
0
0
Lb 75
37


Amaranth Purslane


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

37
12
12
25
12
87
50


Crabgr
100%
0
- 0' --
50
12
12
92
87
87
62
37
25
62
12
12
12
12
25
12
12
12
12
12
12
12
75
87
92
75
12
12
25
25
75
75
37
37

37
12
12
12
12
75
50


Ccrmmel


Sedge
100%
0
NC
NC
NC
NC
NC
NC

50
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

NC
NC
NC
NC
NC
NC
37


*These treatments included surfactant A-209 at 1/21o v/v.


--


100%
0oo
87
0
100
100
100
100
62
62
100
100
100
25
12
87
100
12
0
0
0
OO
0
12
37
100
100
100
100
87
62
87
87
100
100
75
100

100
0
0
0
0
100
50


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

100
0
0
0
0
100
37


100%
0
NC
NC
NC
100
100
100
75
NC
NC
100
100
37
NC
50
NC
NC
NC
NC
NC
NC
NC
NC
NC
75
100
100
NC
NC
NC
NC
100
100
NC
100

100
NC
NC
NC
NC
100
NC








Table 30.--Crop tolerance to postemergence-applied herbicide/adjavant combinations


on organic soil. Values
days after application.

Herbicidal treatment & Rate/A
Handweeded control


atrazine, 2 Ib


plus Surf. A, 1%
plus Plyac, 1%1
plus A-209 1%
plus A-210, 1%/
plus X-77, 1%
plus Surf. WK, 1%
plus CA 620, 1%
plus CA 630, 15l
plus CA 710, 1%
plus St-AA, 1%
plus X-100, 1%
plus X-114, 1l
plus Suc-75, 3/p
plus Suc-129, 3/4
plus Suc-173, 3/4%
plus Suc-176, 3/41
plus Suc-181, 1%
plus Suc-190, 1%
plus Suc-191, 1%
plus Suc-192, 1%o
plus Suc-193, 1%
plus Suc-194, 1f
plus Suc-195, 1f
plus Suc-196, 1l
plus Suc-197, 1%
plus EAP-250, 2-1/2%
plus EAP-250, 2-1/2%
and A-209, 1/2%
plus Sun 7N, 2-1/2
plus Sun 11, 2-1/2%
plus Sun 13E, 2-1/2%
plus T-522, 2-1/2%
plus T-769, 2-1/2
plus TX-6140, 2-1/2%
plus DMSO, 1 gpa
plus DMSO, 2 gpa
plus DMS0, 5 gpa
in rockpit water, 640 ppm
in rockpit water plus
Calgon, 40 gm/gal
in canal water 320 ppm
in canal water plus
Calgon, 40 gm/gal
in tap water, 100 ppm
in tap water plus
Calgon, 20 ga/gal


are percentages of untreated


m


controls at 10


Rice
100%


All other
crops
100%


100 62


25 27


III


S corn
loo00
100
87
87
75
62
50
62
50
62
37
62
75
37
37
25
50
25
62
100
100
100
75
100
87
87
100

87
100
87
75
87
100
100
37
37
37
100

100
100

100
100


Sorghum
100%o
87

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

62
37
50
37
100
87
75
12
12
12
75

75
62

75
75


Oat
100%
50
25
12
0
25
0
0
12
0
0
0
0
25
12
0
0
0
0
0
0
12
0
0
0
0
37

0
0
0
0
12
12
0
37
37
25
37

37
37

25
25





-35-


Table 31.--Weed response to postemergence-applied herbicide/adjuvant combinations
on organic soil. Values are percent control at 10 days after
application.


Herbicidal treatment & Rate/A
Handweeded control
Unweeded control


atrazine 2 lb plus Surf. A, 1%
plus Plyac, 1%
plus A-209, 1%
plus A-210, 1,
plus X-77, io,
plus Surf. WK, 1%
plus CA 620, 1%
plus CA 630, 1%
plus CO 710, 14
plus St-AA, 1%
plus X-100, 1%
plus X-14, f,
plus Suc-75, 3/4D o
plus Suc-129, 3/4 %
plus Suc-173, 3/4%
plus Suc-176, 3/4f
plus Suc-181, 1%f
plus Suc-190, 1%f
plus Suc-191, 1l
plus Suc-192, 1o
plus Suc-193, 1j
plus Suc-194, 1
plus Suc-195, 1,
plus Suc-196, 1i
plus Suc-197, 1%
plus EAP-250, 2-1/20
plus EAP-250, 2-1/2% and
A-209, 1/2%
plus Sun 7N, 2-1/2%
plus Sun 11, 2-1/2,
plus Sun 11E, 2-1/2i
plus T-522, 2-1/2%
plus T-769, 2-1/2%
plus TX-6140, 2-1/2,
plus DMSO, 1 gpa
plus DMSO, 2 gpa
plus DMSO, 5 gpa
in roclpit water, 640 ppm
in rockpit water plus
Calgon 40 em/gal
*in canal water, 320 ppm
in canal water plus
Calgon 40 gm/gal
in tapwater, 11 ppm
in tapwater plus
Calgon 20 gm/gal


Annual
Grasses
1Io ...


0
50
62
62
75
75
82
87
82
87
67
67
75
12
12
25
12
25
37
25
37
37
62
j7
37
50
12


100
100
100
100
1 0
100
100

100

100
i0

100
100

100


* .atrazine control


Annual
Broadleave s
1C0
100

1C'
100
100


1C:

100



1-c

105

l00
''r
-s-I




i2C
105
I00
100

100
100
100
1c00




-36-


Table 32.--Superior herbicidal treatments at 6 weeks after preplanting and
preemergence application and at 3 weeks after postemergence application
Values are percent control.

Herbicidal treatment & Rate/A ,Ale gr Goosegr Crabgr Amarant
Handweeded control 1000 00 100 10N 100o
Unweeded control 0 0 0 0
Rotary tiller, Ro-Wheel Incorporation & Rolled


trifluralin, 3 lb
Preemergence
BASF H-210, 4 lb
8 lb
GS-14260, 8 lb
CDAA, 4 Ib
CDEC, 4 Ib
CP-31393, 8 lb
CP-31393, 4 Ib + 2,4-D, 1.33 lb
CP-31393, 8 Ib + 2,4-D, 2.66 Ib
CP-50144, 4 lb
8 lb


Postemergence
*ACD-10614, 10 lb
*C-6313, 2 lb
pyriclor, 1/2 Ib
H-732, 1-1/2 lb
GS-13633, 2 lb
GS-14253, 2 lb
GS-14259, 2 lb
GS-14260, 2 lb
CP-41820, 4 Ib
CP-43797, 4 lb
S-6000, 1 Ib
2 Ib
4 lb
*s-6000, 1 lb


87


87
92
100
100
100
100
100
100
100
100


92
75
75
75
62
100
92
100
87
87
62
87
92
62


87
92
100
100
100
100
100
100
100
100


100
87
87
62
50
100
92
100
87
87
50
87
92
50


100
100
100
100
100
100
100
100
100
100


92
100
100
100
100
100
100
100
100
100
100
100
100
100


* These treatments included surfactant A-209 at 1/25i v/v.




EES67-6
500 copies




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