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Permanent Link: http://ufdc.ufl.edu/UF00053599/00008
 Material Information
Title: Herbicidal weed control in...
Series Title: Jay, WFES Mimeo Report
Alternate title: Herbicidal control of weeds in..
Physical Description: v. : ; 28 cm.
Language: English
Creator: Smith, Rex L
West Florida Experiment Station, Jay
Publisher: West Florida Experiment Station
Place of Publication: Jay Fla
Creation Date: 1968
Publication Date: 1962-1975
Frequency: annual
regular
 Subjects
Subjects / Keywords: Herbicides -- Periodicals -- Florida   ( lcsh )
Weeds -- Control -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
statistics   ( marcgt )
serial   ( sobekcm )
 Notes
Statement of Responsibility: R. L. Smith
Dates or Sequential Designation: 1961-1974.
General Note: Title from caption.
 Record Information
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62365501
lccn - 2005229309
System ID: UF00053599:00008

Full Text




S WEST FLORIDA EXPERIMENT STATION
Jay, Florida
March 19, 1969

WFES Mimeo Report 69-4 P' *

HERBICIDAL CONTROL OF WEEDS IN CORN, COTTON, g do
PEANUTS, AND SOYBEANS 1968

R. L. Smith --


Weed control research reported in this mimeograph is based on the us of
herbicides with row crops grown in the area. These crops are corn, cotton, peanuts,
and soybeans. The acreage planted to sorghum has increased enough to warrant the
inclusion of this crop in the tests for 1969. Soybean acreage has continued to
increase, probably at the expense of corn and pasture land. The cotton and peanut
acreage is rationed and fluctuates very little.

A preliminary test with vegetable crops lima beans, snap beans, southern
peas, cucumbers, cantaloupes, and watermelons was completed.

All herbicides used in these tests were applied on a broadcast basis and the
rates indicated are pounds of active chemical used per acre. Numbers in parentheses
following names of herbicides, also, indicate pounds of active chemical per acre.
A farm type 4-row sprayer, driven by a tractor power take-off, was used to apply
these chemicals. Types of applications were preemergence and incorporated. All
preemergence treatments were applied as soon after planting as possible and before
the plants came up. Incorporated treatments were applied and mixed into the soil,
prior to planting, with a power driven rotary hoe. This implement thoroughly mixed
the herbicides with the soil to a depth of 2-3 inches. In addition, a cracking-
time application of various chemicals was applied to peanuts at emergence. Each
crop was planted at the recommended rate and the rows were leveled with a drag
attached to the planter. Four-row plots with 4 replications were used in the
experiments with corn, cotton, and peanuts. In the soybean test 3 replications
were planted in rows and 3 were planted broadcast with a grain drill. Observations
on the check plots indicate a uniform infestation of crabgrass, water grass, goose
grass, Florida pusley, cocklebur, red weed, and morning glory. Sandspur, Egyptian
grass, coffee weed, pigweed, beggar weed, and bristly starbur were present but not
in uniform stands.

The data from the use of Daxtron, a most promising herbicide in the corn,
peanut, and soybean tests should not be considered. A request for a label for its
use has been refused. Research with Velsicol's OCS21799 has been discontinued.

Corn.- Three-hundred pounds of 8-24-24 and 200 pounds of ammonium nitrate were
applied broadcast on Tifton fine sandy loam soil and disced in before planting.
Florida 200A corn was planted with a 16 inch spacing in 36 inch rows. A good stand
was obtained although there was a limited supply of moisture in the soil. Lack of
moisture continued to be a factor throughout the growing season. This lack of
moisture was favorable for the more soluble herbicides and detrimental to the less
soluble ones. Nine single herbicides and 10 combinations of herbicides were


Associate Agronomist.
Associate Agronomist.







-2-


applied three days after planting and before emergence. A check and a cultivated
check plot were included in each replication for comparison. No cultivation was
used except on the cultivated check plot.

The data as reported in Table 1 show that the yields of the better herbicidal
treatments were approximately equal to 55.8 bushels for the cultivated check plot.
In general, highest yields were associated with good weed control. The yield of
the uncultivated check was 33.4 bushels or 22 bushels less than that of the culti-
vated check. Yields for treatments Atrazine + Daxtron (1 + 6 oz.), Atrazine (3),
Lasso (1), Atrazine + Lorox (1 + 1), Ramrod (6), Atrazine + Lorox (1 + 1), and
Lorox (2) were, in order mentioned, 56.3, 55.4, 53.8, 53.0, 52.9, 50.5, and 49.9.
Other treatments with yields slightly less than 50 bushels were Lorox + Banvel D
(1 + 1/8), dinitro + Dacamine (3 + ), Maloran (3), Lorox (1), Atrazine + Caparol
(1 + 1), Atrazine + Daxtron (1 + 6 oz.), and Lorox (1). Neither toxicity nor
stand damage was caused by any of the treatments.

Cotton.- This test was located on well prepared Tifton fine sandy loam soil.
Three-hundred pounds of 8-24-24 and 200 pounds of ammonium nitrate were applied
broadcast and disced in before planting Carolina Queen cotton in 36 inch rows.
Incorporated treatments were applied and incorporated 2-3 inches deep with a power
driven rotary hoe before planting. All preemergence treatments were applied 3 days
after planting and before emergence. A limited supply of moisture was present, but
a good stand was obtained. There was a lack of moisture for several weeks after
planting. Thirteen treatments using single herbicides and 6 treatments using
combinations of herbicides were applied. A check and a cultivated check plot were
included.

Germination of weeds was slow and a reading taken on April 22 showed good
scores for all herbicides. Addition of Caparol (11), Cotoran (2), and CIPC to
Treflan or to Planavin did not improve their performance as compared to either
herbicide alone. The performance of Caparol, Cotoran, and Karmex was not as good
as in previous years. This was probably due to insufficient moisture for activating
these chemicals. Treflan (), Planavin (), and Lasso (1) gave excellent control
of grasses and fair to good control of broadleaf weeds. Lasso (3) and Treflan (1)
gave good control of both grasses and broadleaf weeds. Treflan (1) caused stand
damage. In general, broadleaf weed control was poor.

Peanuts.- The peanut herbicide test was located on Lakelane loamy fine sand
soils on which 500 pounds per acre of 0-14-14 had been broadcast and disced in.
Incorporated treatments were applied and thoroughly mixed in the soil to a depth
of 2-3 inches. Early Runner peanuts were planted and the preemergence treatments
were applied the following day. There was sufficient moisture for germination;
thereafter, the weather was rather dry. Twenty-six treatments using single
herbicides and combinations of herbicides were included as shown in Table 3. Check
and cultivated checks were included. Yields were not taken.

Due to dry weather, dinitro was not as effective as in previous years.
However, the addition of dinitro (3) to Balan (3/4 Inc) did improve broadleaf weed
control for that treatment. Planavin () did not control broadleaf weeds and stand
damage occurred where Planavin (1 Inc) was used. Planavin (1 Pre E) gave better
weed control and caused no stand damage. However, Planavin (1 Pre E) would have to
have a rain in 3-4 days which occurred this time. Dinitro + diphenamid (3 + 3),
Lasso (1) (3), and Proferan [C6989] (4) (6) gave good to excellent control of







-3-


grasses and weeds and were not toxic to the peanuts. Vernam (3) caused stand damage
and was toxic to the growing plants.

Peanuts "Cracking Time".- This was a continuation of the regular test except
that herbicides were applied at "cracking time" or emergence. Fourteen treatments
including a check and a cultivated check were included. The treatment dinitro +
OCS 21799 (1k + 1) was discarded due to difficulties that occurred when mixed.
Although burning of the emerged plants occurred with all treatments, the plants
recovered with very little damage.

The treatments which utilized dinitro or combinations of dinitro with other
chemicals are as shown in Table 4. One-half inch of rain fell the night after
application and moisture conditions were good. Good and persistent control was
furnished by all treatments.

Soybeans.- Three replications of each treatment were planted on Tifton fine
sandy loam with Hampton soybeans. One-half of each replication was planted with a
grain drill for a broadcast effect. Row width for the other half of the treatment
was 36 inches. Prior to planting, 500 pounds of 0-14-14 was broadcast on the well
prepared soil and disced in. Incorporated herbicides were applied and mixed into
the soil with a power driven rotary hoe. There was a scarcity of moisture at
planting and stands were only fair to good, causing some difficulty in reading stand
damage. Stands on incorporated treatments were poorer due to loss of moisture
during incorporation.

The data are shown in Tables 5 and 6. The following treatments gave excellent
control of grasses and fair to good control of broadleaf weeds: Lorox (2), Treflan
(), Planavin () (1), Maloran (3), Proferan [C6989] (4k) (6), Lasso (1k) (3),
Lasso + Lorox (1; + 1), Lasso + Caparol (1 + 1), CIPC + Lorox (3 + 1), Amiben (3),
Amchem 65-81B + Lorox (2 + 1), dinitro (6), dinitro + Dacamine (3 + ), dinitro +
CIPC (3 + 3), OCS 21799 (1) (3), Shell 15179 (1), and Dacthal + Lorox (6 + 1).
The performance of Lasso (1), CIPC (3), Amchem 65-81B (2), and Dacthal (6) in
controlling broadleaf weeds was improved by addition of Lorox (1). Stand damage
was caused by Daxtron (1), Treflan (1), and Vernam (2k).

Soybean yields were taken but are not reported. The data are not comparable
due to lack of uniformity in stands.

The bean fields of the area, particularly in Okaloosa and Walton Counties, are
becoming infested with spiny amaranth (Amaranthus spinosus). This weed is a
prolific seed producer and when a few plants are allowed to mature, a field can
become infested in a short time. Control by cultivation is rather difficult and
soil has been obtained from an infested field for a study with chemical weed control
in the greenhouse. A number of treatments using the better soybean herbicides and
promising herbicides are included in this test in large pots in the greenhouse.

Vegetable Crops.- This test was planted on Ruston fine sandy loam which was
fertilized with a broadcast application of 600 pounds of 4-12-12. Four replications
of each treatment were included. Each plot consisted of 1 row each of lima beans,
snap beans, southern peas, and a mixed row of cantaloupes, cucumbers, and water-
melons making a total of 4 rows for each plot.








-4-


The data as shown in the Table below indicate that good tolerance and good weed
control for all crops were obtained with Planavin () and Lasso (1). Diphenamid
(4) furnished excellent weed control and all crops were tolerant except cantaloupes
and watermelons. Tolerance of beans and peas to Dacthal (8) was good but tolerance
from the curcubits was poor.


Herbicidal Control of Grass and Weeds in Certain Vegetable Crops


Herbicide

Treflan

Planavin

Diphenamid

Dadthal

Dinitro

Dinitro

OCS 21799

OCS 21799

Lasso

Maloran

Lorox

Lorox


Lbs. Time of


Per
Acre





4

8

432

6



1



3

1

2


Appli-
cation

Inc

Inc

Pre E

Lt. Inc

Pre E

Pre E

Pre E

Pre E

Pre E

Pre E

Pre E

Pre E


Tolerance


Snap
beans

Fair

Good

Good

Good

Fair

Fair

Good

Good

Good

Poor

Poor

Poor


Lima
beans

Fair

Good

Good

Good

Fair

Fair

Good

Good

Good

Poor

Poor

Poor


Southern Cucum- Canta-
peas bers lopes

Fair Poor Poor

Good Good Good

Good Good Fair

Good Poor Poor

Fair Poor Poor

Fair Fair Poor

Good Good Poor

Good Good Poor

Good Good Good

Fair Poor Poor

Fair Poor Poor

Fair Poor Poor


Water-
melons

Poor

Good

Fair

Poor

Poor

Poor

Good

Good

Good

Poor

Poor

Poor


Weed
Control

Very Good

Good

Very Good

Good

Fair

Good

Fair

Good

Very Good

Good

Good

Very Good


Date of Planting April 8; stands good.
Variety: Snap beans Harvester
Lima beans Jackson
Southern peas Top Set
Cucumbers Palomar
Cantaloupes Hales Best
Watermelons Charleston Gray
Moisture Approximately 1 inch of water applied April 9.


Tolerance








-1-


Herbicidal Control of Grass and Weeds in Corn 1968

West Florida Experiment Station
Jay, Florida


Herbicide


Atrazine
Atrazine
Atrazine
Atrazine
Atrazine
Atrazine
Lorox
Lorox


Caparol
Daxtron
Daxtron
Lorox
Lorox


Lorox + Banvel D
Dinitro + Dacamine
CIPC + Lorox
Ramrod
Ramrod + Banvel D
Ramrod + 2,4-D A
TH407
H417
Lasso
Fenac
Maloran
Check

Cultivated Check


April 22
Lbs./A. T of A G BLW
3 Pre E 10 9
1 +1 Pre E 9 9
1 + 3 oz. Pre E 10 8
1 + 6 oz. Pre E 10 9
1+1 Pre E 10 8
1i + 1h Pre E 10 9
1 Pre E 10 10
2 Pre E 10 10
1 + 1/8 Pre E 10 10
3 + 1 Pre E 10 9
3 +1 Pre E 10 10
6 Pre E 10 9
2 + Pre E 10 10
2 + h Pre E 10 9
3 pints Pre E 8 8
3 pints Pre E 8 8
1 Pre E 10 8
Pre E 10 7
3 Pre E 10 9
Weeds Present: Goose grass,


May 10
G BLW
9 9
8 7
9 7
10 8
10 8
10 8
9 8
9 8
9 8
10 9
9 9
10 8
10 8
10 9
7 5
7 6
9 8
8 7
9 9


May 24
G BLW
9 8
8 6
8 7
9 8
8 8
9 8
8 7
8 8
9 8
9 9
8 8
10 9
9 8
9 8
6 4
7 4
9 7
7 5
8 9


June 10
G BLW
9 8
7 6
8 7
9 8
7 8
9 8
7 5
8 8
9 8
9 9
8 7
9 8
9 7
9 7
6 3
7 4
9 7
6 5
8 9


Yield in
Bu./Acre
55.4
47.6
47.8
56.3
50.5
53.0
47.7
49.9
48.1
48.2
43.9
52.9
44.0
43.5
31.5
31.0
53.8
36.5
48.6


crabgrass, barnyard grass, 33.4


pursely, cocklebur, red weed, morning glory.
Cultivated check was not hoed.


55.8


T of A Time of Application
G = Grass
BLW = Broadleaf Weeds
Pre E = Preemergence
Corn Cokers 67 variety, planted April 5 Stand good.
All chemicals applied as preemergence spray on April 8th.
Herbicides Expressed in pounds of actual material on broadcast basis.
Plots Four 4-row plots of each treatment.
Weather Limited supply of moisture at planting followed by dry weather for a
period of 4 weeks.








-2-


Herbicidal Control of Grass and Weeds in Cotton 1968

West Florida Experiment Station
Jay, Florida


Herbicide
Treflan
Treflan
Treflan + Caparol
Treflan + CIPC
Planavin
Planavin
Planavin + Cotoran
Planavin + CIPC
Caparol
Caparol
Cotoran
Cotoran
Lasso
Lasso
Dacthal
Dacthal + CIPC
Treflan + Karmex
Karmex
Sirmate
Check

Cultivated Check


Lbs./A.


3/4 + 1l
; + 3



1
+ 2
S+3
2
4
2
4
1h
3
8
6 +3
+ 1
1
8


Time of
Application
Inc
Inc
Inc-Pre_ E
Inc-Pre E
Inc
Inc
Inc-Pre E
Inc-Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Inc-Pre E
Pre E
Pre E


Weeds present: Goose


April 22
G BLW
10 9
10 9
10 9
10 9
10 7
10 8
10 8
10 9
10 8
10 9
10 8
10 9
10 7
10 9
10 8
10 8
10 8
8 8
9 8
grass, cr.


May 10
G BLW
10 8
10 9
10 8
10 8
9 6
10 7
9 7
10 7
8 6
9 5
9 6
9 7
10 7
10 8
9 7
9 6
10 8
7 7
8 7


May 24 June 10


May 24
G BLW
9 6
10 7
9 8
10 7
8 6
9 5
9 6
10 7
7 4
7 6
7 6
9 6
9 6
9 8
8 6
8 6
10 8
6 5
8 6


abgrass, pursely,


cocklebur, morning glory, and Texas sandbur.
Cultivated Check was not hoed.


G = Grass
BLW = Broadleaf Weeds
Pre E = Preemergence
Inc = Incorporated
Incorporated chemicals applied April 5 Incorporated 2 to 3
power driven rotary hoe.
Preemergence chemicals applied April 8.
Cotton Carolina Queen, planted April 5 Stand good.
Herbicides Expressed in pounds of actual material per acre
Plots Four 4-row plots of each treatment.
Weather Limited supply of moisture at planting followed by
several weeks.
No yields were taken.


inches deep with



on broadcast basis.

dry weather for


June 10
G BLW
9 6
10 7
9 7
10 7
8 5
9 5
9 6
10 7
6 4
7 4
7 5
9 6
8 6
9 8
8 5
8 5
10 7
5 3
8 6


red weed,







-3-


Herbicidal Control of Grass and Weeds in Peanuts 1968

West Florida Experiment Station
Jay, Florida


Time of June 14 June 28 July 18 July 29
Herbicide Lbs./A. Application G BUL G BLW G GLW G BLW
Dinitro 6 Pre-E 9 9 9 9 7 8 7 9
Dinitro 9 Pre-E 9 10 9 10 8 9 8 9
Daxtron 4h oz. Pre-E 9 9 9 8 8 8 7 7
Daxtron 6 oz. Pre-E 9 10 9 9 9 8 9 8
Daxtron 9 oz. Pre-E 10 10 10 9 10 9 9 9
Balan 3/4 Inc. 9 8 9 8 8 8 8 6
Balan 1l Inc. 10 9 9 9 9 8 9 8
Balan + dinitro 3/4 + 3 Inc & Pre-E 10 10 10 10 9 9 9 8
Balan + Daxtron 3/4 + h Inc & Pre-E 10 10 10 8 10 7 10 7
Planavin h Inc. 9 8 8 7 7 7 6 5
Planavin 1 Inc. 9 9 8 8 8 6 7 6
Planavin 1 Pre-E 9 9 9 9 9 8 9 8
Planavin + CIPC + 3 Inc & Pre-E 9 10 9 10 9 9 9 9
SD 179 3 Pre-E 9 8 9 7 9 5 9 3
R7465 2 Inc. 9 7 8 5 7 3 6 2
R7465 3 Inc. 9 8 9 7 7 5 7 2
Vernam 3 Inc. 10 10 9 9 8 6 7 5
Dinitro + 2,4-D A 3 + h Pre-E 8 9 7 8 6 8 4 8
Dinitro + Diphenanid 3 +3 Pre-E 10 10 10 9 9 9 9 9
Lasso 1) Pre-E 10 9 10 9 9 9 9 9
Lasso 3 Pre-E 10 10 10 10 10 10 10 10
OCS-21799 1S Pre-E 8 8 8 6 7 6 7 4
OCS-21799 3 Pre-E 9 9 9 9 8 7 8 7
C6989 4h Pre-E 9 10 9 10 8 8 7 8
C6989 6 Pre-E 10 9 10 9 8 8 8 8
UC 22463 6 Pre-E 9 8 7 6 5 5 4 3
Pre-E Preemergence; Inc. Incorporated
G Grass; BLW Broadleaf Weeds
Herbicides: Rate expressed in pounds of actual material on a broadcast basis.
Incorporated materials applied May 20. All preemergence treatments
applied May 22.
Peanuts: Early Runner planted May 21 Stand good.
Plots: Four 4-row plots of each treatment.
Weather: There was sufficient moisture for germination, but the weather was
rather dry thereafter.
Yield: No yields were taken.








-4-


Herbicidal Control of Grass and Weeds in Peanuts Sprayed
at Emergence or "Cracking Time" 1968

West Florida Experiment Station
Jay, Florida


Herbicide
Dinitro
Dinitro
Dinitro + Daxtron
Dinitro + Daxtron
Dinitro + Sesone
Dinitro + Falone
Dinitro + Dacamine
Dinitro + 2,4-D B
Dinitro + CIPC
Enide + Dinitro
Dyanap*


Lbs./A.
411
6
1 +
1 +
1 + 2
1 + 2
1i+
l1 +
2 +2
2 + 1
1 +2


June 14
G BLW
10 10
10 10
10 10
10 10
10 10
10 10
10 9
9 9
9 9
10 9
9 9


June 28
G BLW
10 9
10 10
10 9
10 10
10 10
9 10
9 9
9 9
9 7
9 9
9 8


July 18
G BLW
8 9
9 10
10 9
10 10
9 9
9 9
9 8
8 7
8 7
9 8
8 7


S1 Pound dinitro + 2
G = Grass
BLW = Broadleaf Weeds


Peanuts:
Herbicides:


Plots:
Weather:


pounds Alanap


Early Runner, planted May 21 Stand good.
Rates expressed in pounds of actual material per acre
on broadcast basis. All treatments were applied at
"cracking time" or emergence May 28, 1968.
Four 4-row plots of each treatment
Moisture was in good supply at time of application,
inch rain the preceding night.


July 29
G BLW
8 9
9 10
10 9
10 10
9 9
8 9
8 8
8 6
8 7
9 8
7 7





-5-


Herbicidal Control of Grass and Weeds in Soybeans Planted in Rows 1968

West Florida Experiment Station
Jay, Florida


Herbicide


Lorox
Lorox
Treflan
Treflan
Treflan + dinitro
Treflan + Daxtron
Treflan + Dacamine
Planavin
Planavin
Planavin + CIPC
Vernam
R7465
R7465
Daxtron
Daxtron
Daxtron + dinitro
Alanap + CIPC
Alanap + Planavin
Maloran
Proferan
Proferan
Lasso
Lasso
Lasso + Daxtron
Lasso + Lorox
Lasso + Caparol
CIPC + Lorox
Amiben
Amchem 65-81B
Amchem 65-81B + Lorox
Dinitro
Dinitro + diphenamid
Dinitro + Dacamine
Dinitro + CIPC
OCS 21799
OCS 21799
Sirmate
Shell 15179
Dacthal
Dacthal + Lorox
Check


Cultivated Check


Lbs./A.
1
2

1

- + 1
h + h

1
+ 3
2
2
3

1
S+ 3
2 + 1
2/3 gal.
3
4
6
1
3
l2 +
1 + 1
11 + 1
3 +1
3
3
2 +1
6
1 + 2
3 +
3 +3
1
3
6
1
8
6 +1
Grasses


Egyptian gr,


Ti
Appl
Pre
Pre
Inc
Inc
Inc
Inc
Inc
Inc
Inc
Inc
Inc
Inc
Inc
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
and we


.me of June 21
ication G BLW
E 9 8
E 10 9
10 9
10 10
& Pre E 10 10
& Pre E 10 10
& Pre E 10 7
10 8
10 8
& Pre E 10 9
10 8
10 7
10 8
E 10 10
E 10 10
E 10 10
E 9 8
E 10 8
E 9 9
E 10 9
E 10 10
E 10 8
E 10 8
E 10 9
E 10 10
E 10 9
E 10 8
E 10 9
E 10 8
E 10 9
E 10 10
E 10 8
E 10 8
E 9 8
E 10 8
E 10 10
E 8 8
E 10 8
E 8 7
E 10 9
eeds present: Cr.
ass, red weed, co


July 3
G BLW
9 7
9 8
9 9
10 8
10 8
10 10
10 6
10 8
10 8
10 7
9 6
10 6
10 8
10 9
10 10
10 9
8 8
10 7
9 8
10 8
10 9
10 7
10 8
10 9
10 8
10 9
9 8
10 8
10 6
10 9
10 9
9 7
9 8
8 8
10 8
10 9
8 7
10 8
8 6
10 9


July 23
G BLW
7 7
8 9
10 7
10 7
9 7
10 8
9 5
10 7
9 6
10 6
9 3
10 4
10 7
10 9
10 10
10 9
8 6
9 6
8 7
9 8
9 9
10 6
10 8
10 9
10 8
10 8
8 8
9 7
9 5
9 9
9 8
9 5
8 7
8 6
9 7
9 9
8 6
9 8
7 4
10 8


abgrass, goose grass,
cklebur, pursely, and


morning glory.
Cultivated Check was not hoed.


G = Grass; BLW = Broadleaf Weeds
Pre E = Preemergence; Inc = Incorporated
Herbicide Expressed in pounds of actual material on broadcast basis.
Incorporated material applied June 6. Preemergence material applied
June 8.
Plots Three 4-row plots of each treatment.
Beans Hampton; Planted June 7 in rows.
Weather Moisture supply was limited at time of planting and during growing


Aug. 9
G BLW
7 6
8 8
10 6
10 7
9 7
10 8
8 5
9 6
9 6
10 6
9 3
10 4
10 5
10 9
10 10
10 9
7 5
8 5
8 7
8 8
9 8
9 6
9 7
10 9
10 8
10 7
8 8
8 7
9 4
9 8
8 7
8 5
8 7
8 6
8 6
9 8
7 5
8 7
7 4
9 7




-6-


Herbicidal Control of Grass and Weeds in Soybeans Sown with Grain Drill 1968
West Florida Experiment Station
Jay, Florida


Herbicide
Lorox
Lorox
Treflan
Treflan
Treflan + dinitro
Treflan + Daxtron
Treflan + Dacamine
Planavin
Planavin
Planavin + CIPC
Vernam
R7465
R7465
Daxtron
Daxtron
Daxtron + dinitro
Alanap + CIPC
Alanap + Planavin
Maloran
Proferan
Proferan
Lasso
Lasso
Lasso + Daxtron
Lasso + Lorox
Lasso + Caparol
CIPC + Lorox
Amiben
Amchem 65-81B
Amchem 65-81B + Lorox
Dinitro
Dinitro + diphenamid
Dinitro + Dacamine
Dinitro + CIPC


OCS 21799
OCS 21799
Sirmate
Shell 15179
Dacthal
Dacthal + Lorox
Check


Cultivated Check


Lbs./A.
1
2
1-
2
1
S+ 3
+
+ ,

1
+ 3

2
3
-2
1
S+ 3
2 +1
2/3 gal.
3
4
6
1
3
1 +
1 + 1
1 + 1
3 +1
3
3
2 +1
6
1 + 2
3 +
3 +3
1
3
6
1
8
6 +1
Grasses


'Time o
Applicat:


Pre E
Pre E
Inc
Inc
Inc & Pr
Inc & Pr
Inc & Pr
Inc
Inc
Inc & Pr
Inc
Inc
Inc
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
and Weeds


Egyptian grass,
morning glory.


f June 21
ion G BLW
9 9
10 10
10 9
10 10
e E 10 10
e E 10 10
e E 10 7
10 8
10 9
e E 10 9
10 8
10 8
10 8
10 10
10 10
10 10
9 8
10 8
10 9
10 9
10 10
10 8
10 8
10 10
10 10
10 9
10 8
10 10
10 8
10 9
10 10
10 9
10 8
9 9
10 9
10 10
8 8
10 9
8 8
10 10
present: Cr<
pursely, red


July 3
G BLW
9 8
10 9
10 9
10 9
10 9
10 10
10 7
10 8
10 9
10 8
10 7
10 6
10 8
10 9
10 10
10 10
8 8
10 7
9 8
10 9
10 9
10 8
10 8
10 10
10 9
10 8
10 8
10 9
10 7
10 9
10 9
10 8
9 8
9 8
10 8
10 9
8 7
10 8
8 7
10 9
abgrass, g


weed, cocklebur, and


Cultivated Check was not hoed.


G = Grass; BLW = Broadleaf Weeds
Pre E = Preemergence; Inc = Incorporated
Herbicide Expressed in pounds of actual material on broadcast basis.
Incorporated material applied June 6. Preemergence material applied
June 8.
Plots Three 4-row plots of each treatment.
Beans Hampton; Planted June 7 with grain drill.
Weather Moisture supply was limited at time of planting and during growing
season.


July 23 Au
G BLW G
8 8 7
9 8 8
9 7 9
10 8 10
10 7 9
10 9 10
9 6 8
10 7 9
9 8 8
10 6 10
9 4 8
10 5 1C
10 7 1C
10 9 IC
10 10 1C
10 10 1C
8 8 7
9 6 9
8 8 E
9 8 8
10 9
9 7 f
10 8 E
10 9 1(
10 8 1
10 8 1
9 8 1
9 8
10 6 f
9 9
10 8
9 7
9 7
8 7
9 7
10 9
8 6
9 8
8 6
10 9
oose grass,


Lg. 9
BLW
6
8
6
7
7
9
6
6
7
6
S 4
5
7
S 9
10
9
S 7
5
S 8
8
8
6
8
8
) 8
0 6


8
3 8
S 5
9 8
9 8
3 6
9 6
3 7
9 6
9 8
3 6
9 8
7 5
9 8