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 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: 1970
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.
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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: UF00053599:00010

Full Text
100 LIBRARY


W E5 ?1-I WEST FLORIDA EXPERIMENT STATION 197\
Jay, Florida \ 7
January 25, 1971

WFES Mimeo Report 71-1 I. A.S. Uni. 1-

HERBICIDAL CONTROL OF WEEDS IN CORN, COTTON,
GRAIN SORGHUM, PEANUTS AND SOYBEANS 1970

R. L. Smith 1/

Results of experiments with various herbicides used on row crops in this
area are presented in this publication. Crops on which these herbicides were
tested are: corn, cotton, grain sorghum, peanuts and soybeans. These crops
occupy a major part of the cultivated acreage in the area. Snap beans, lima
beans, southern peas, cantaloupes, cucumbers and watermelons were included in
a herbicide test with vegetables.

All materials were applied broadcast by a farm type 4 row sprayer (with
nylon roller pump) driven by the power take-off on the tractor. Herbicides,
after being thoroughly mixed with water, were applied at the rate of 40 gallons
of solution per acre with 45 pounds pressure. Preplant incorporated treatments
were thoroughly mixed with the top 2-3 inches of soil with a power driven rotary
hoe prior to planting. A drag attached to the planter left a smooth surface for
the application of pre-emergence herbicides, which were applied no later than
one day after planting. "Cracking time" treatments, using dinoseb or combinations
of dinoseb with other herbicides, were applied to peanuts at emergence. Each
test contained four replications with 4 row plots of each treatment. Numbers in
parenthesis following names of herbicides indicate pounds of actual chemical per
acre on a broadcast basis. In the soybean test, the length of the plots was
doubled and one half of each plot was planted with a grain drill. Cultivated
and non-cultivated check plots were included in each test. All of the experiments,
except the peanut test, were located in the same area on Greenville fine sandy
loam type soil. This area of soil had uniform infestations of crabgrass, water-
grass, Florida purslane (pusley), cocklebur, sickle pod and morning glory.
Goose grass, Egyptian grass, sand bur, pig weed, beggar weed and bristly starbur
occurred as irregular infestations. The peanut tests were located on Norfolk fine
sandy loam which had a uniform infestation of crabgrass, Florida purslane (pusley)
and morning glory. Cocklebur, sickle pod, red weed and beggar weed were present
in irregular stands.

Corn. Twenty-one treatments, including a check and non-cultivated check,
were used in the corn test. No cultivation was used except on the cultivated
check plots. A uniform fertilizer application of 300 pounds of 8-24-24 and 200
pounds of ammonium nitrate was applied broadcast and disced into well prepared
Greenville fine sandy loam soil before planting. Funks 5858 variety of corn was
planted in 36 inch rows with a 16 inch spacing in the drill. Moisture was plenti-
ful and a good stand was obtained. However, the stand was ruined by a heavy
infestation of sugar cane beetles. After replanting, a second stand was also
destroyed by the beetles. No yields were taken as the result of the poor stand.
Readings taken on the dates indicated are shown in Table 1. Thirteen single
herbicide and 6 combination of herbicide treatments were included.

Initial control by most treatments was good to excellent, however, a number
of treatments failed to give persistent control. Weed control by a good uniform
stand of corn was lacking due to the poor stand. This could account for poor


1/ Associate Agronomist.







-2-


control late in the season by some of the treatments. As shown in Table 1, treat-
ments giving better than average control were: Atrazine (3), Lasso (3), Lasso +
Lorox (1.3 + .7), Lasso + Lorox + Atrazine (2/3 + 2/3 + 2/3), Bay 94 337 (1/4)
(1/2). Eptam (4), a preplantincorporated treatment, gave good weed control but
caused appreciable stand damage. Broadleaf control with low rates of Bay 94 335
(1/4) (1/2) was not as good as with higher rates of (1) (1-1/2) as used in 1969.

Cotton. The fertilizer treatment, a uniform application of 300 pounds of
8-24-24 plus 200 pounds of ammonium nitrate, was disced into well prepared Green-
ville fine sandy loam soil before planting. Preplant incorporated treatments
were applied and thoroughly mixed with the top 2-3 inches of soil before planting.
Carolina Queen cotton was planted at the recommended rate in 36 inch rows. Pre-
emergence treatments were applied to a smooth surface not later than one day after
planting. The moisture supply was good and a good stand was obtained. Sixteen
single herbicide and 3 combination herbicide treatments were included. With the
exception of the cultivated check plots, no cultivation was used. Yields were
not taken.

The data in Table 2 show that initial weed control was good to excellent
from all treatments except VC 438 (1-1/2) and Cotoran (2). Excellent and per-
sistent weed control was derived from the following treatments: Cotoran (4),
Caparol (4), Lasso (1-1/2) (3) and Lasso + dinoseb (1-1/2 + 3). Treflan (1/2)
(1), Treflan + dinoseb (1/2 + 3), Planavin (3/4) (1), R12001 (4) and Ryzelan
(1-1/2) (3) gave good control of grasses and relatively poor control of broad-
leafed weeds. Severe stand damage occurred from Caparol (4) and VC 438. Stand
damage from use of Treflan (1) and R12001 was 20-30%. Ryzelan (1-1/2) (2)
caused dwarfing in early stage of growth.

Grain Sorghum. Three hundred pounds of 8-24-24 plus 200 pounds of ammonium
nitrate was applied broadcast and disced into well prepared Greenville fine sandy
loam soil before planting. BR 64 grain sorghum was planted at the rate of 10
pounds per acre in 36 inch rows. Treatment number 4, dinoseb (3), was applied
when sorghum was in needle stage and about 1/2 inch high. The remaining herbi-
cides were applied as pre-emergence sprays. Fifteen single herbicide and 4
herbicide combination treatments were included. No cultivation was used except
for the cultivated check.

The data presented in Table 3 show treatments furnishing good and persistent
control were: Lasso + dinoseb (1-1/2 + 3), Lasso (1-1/2) (3), Bladex (1) (2),
Lorox + C1PC (1 + 3) and Igran (2). Results from the use of dinoseb were not as
good as in previous years. VC 438 (3) caused appreciable dwarfing or stunting and
the sorghum failed to make normal growth.

Peanuts. This test was located on well prepared Norfolk fine sandy loam
soil to which 500 pounds of 0-14-14 had been applied broadcast and disced in.
Early Runner peanuts were planted at the rate of 65 pounds of seed per acre in
36 inch rows. Preplant incorporated treatments were applied the day before plant-
ing and immediately incorporated 2-3 inches deep with a power driven rotary hoe.
Pre-emergence treatments were applied not later than one day after planting. A
good supply of moisture was present and a good stand was obtained. Twenty-one
treatments using single herbicides and five treatments using combinations of
herbicides were included.

The data in Table 4 indicate that the following treatments gave good control
of grasses and broadleaf weeds: Balan (3/4) (1-1/4), Balan + dinoseb (1-1/8 + 3),
Planavin (1), Planavin I dinoseb (1/2 + 3), Planavin + ClPC (1/2 + 3), Vernam
(2-1/2), R12001 (2) (3), Lasso (1-1/2) (3), Lasso + dinoseb (1-1/2 + 3), Dyanap







-3-


(1-1/2 + 2) and dinoseb (6) (9). Planavin (1) preplant incorporated was decided-
ly superior to Planavin (1) pre-emergence. Preforan (3) (4-1/2), Maloran (1-1/2)
(3), Planavin (1/2), RP 17623 (1-1/2) (2) and dinoseb + Dephenamid gave good con-
trol of grasses but poor control of broadleafed weeds. VC 438 (3) caused rather
severe dwarfing throughout the growing period and Maloran (3) was slightly toxic.

"Cracking Time". This test was planted like the regular test but the treat-
ments were applied at "cracking time" or emergence. Fourteen treatments consist-
ing of dinoseb or combinations of dinoseb were applied at this time. These treat-
ments and resulting data are expressed in Table 5.

All treatments burned the foliage of the emerging peanut plants. However,
they recovered quickly and made normal growth. The following treatments gave the
best and most persistent control of grasses and broadleafed weeds: Dinoseb (4-1/2)
(6), dinoseb + Falone (1-1/2 + 2), dinoseb + Sesone (1-1/2 + 2), dinoseb + Lasso
(1-1/2 + 1-1/2), Balan (ppi) + dinoseb (1-1/8 + 3) and Dyanap (1-1/2 + 3).

Soybeans. A uniform application of 500 pounds of 0-14-14 was incorporated
into well prepared Greenville fine sandy loam soil by discing. All preplant
incorporated herbicides were thoroughly mixed with the top 2-3 inches of soil with
a power driven rotary hoe before planting. Hampton 266A soybeans were planted at
the rate of 60-70 pounds of seed per acre. One half of each plot was planted in
36 inch rows and the other half was planted with a grain drill. Pre-emergence
treatments were applied as soon as possible but not later than one day after plant-
ing. The forty-two treatments included were: 30 with single herbicides, 10 with
combinations, 1 cultivated and 1 non-cultivated check. Yields were taken but the
stand was too erratic and they will not be included.

No treatment gave excellent or even good control of cocklebur and sickle pod
(Tables 6 and 7). However, some treatments were superior to others in control of
these two problem weeds as well as other broadleafed weeds. Treatments controll-
ing grasses and giving fair to good control of broadleafed weeds were: Lorox (2),
Lorox + C1PC (1 + 3), Treflan + Lorox (1/2 + 1), Planavin + dinoseb (1/2 + 3),
Maloran (3), Lasso (3), Lasso + dinoseb (1-1/2 + 3), Lasso + Lorox (1.3 + .7),
Dynoram (1-1/2 + 2), VC 438 (3), dinoseb + Dacamine (3 + 1/2), Bay 94 337 (1),
RP 17623 (1-1/2), dinoseb (6) and Dyanap (1-1/2 + 3). Treatments controlling
grasses but not controlling broadleafed weeds were: Treflan (1/2) (1), Planavin
(3/4) (1), Vernam (2-1/2), Vernam + Treflan (2 + 1/2), Tok E-25 (3), Lasso (1-1/2),
Preforam (3) (4-1/2), Maloran (1-1/2), Lasso + C1PC (1-1/2 + 3), Amiben (3),
Amilon (1-1/2 + 1/2), Bay 94 337 (1/2), RP 17623 (3/4), VC 438 (1-1/2), Ryzelan
(1-1/2) (3) and Furloe (4-1/2). Weed control with beans planted with a grain
drill was equal to or slightly better than beans planted in rows. The treatments
using Treflan (1), Vernam (2-1/2) and Vernam + Treflan (2 + 1/2) caused an estimat-
ed 40-50% stand damage.

Vegetable Crops. This test was located on Ruston fine sandy loam type soil
which had been fertilized with 300 pounds of 8-24-24 per acre. Vegetable crops
used were: snap beans, lima beans, southern peas, cantaloupes, cucumbers and water-
melons. Sixteen herbicidal treatments plus a check and a cultivated check, with
four replications of each treatment, were included. Each plot had 4 rows with one
row each of snap beans, lima beans, southern peas and mixed row of cantaloupe,
cucumber and watermelon. Weed results are listed in Table 8.

Treatments with good tolerance for all crops were Planavin (1/2) (1), Diphe-
namid (4), Lasso (1-1/2), Amchem 65-81B (2) (3), Amchem 69 376 (2), Bay 94 337
(1/4), Dacthal (8) and Prefar (4). Treflan (1/2), Preforan (3) (4-1/2) had toler-
ance for snap beans, lima beans and southern peas but were toxic to cicubits.
Lasso showed good tolerance for all crops except cantaloupes. VC 438 (1-1/2) (3)






4 -
-4-

was toxic to each of the vegetable crops. The best weed control was obtained
with Preforan (4-1/2), Lasso (1-1/2) (3), Dacthol (8) and VC 438 (1-1/2) (3).
Planavin (1/2) (1), Treflan (1/2), Amchem 69-376 (2) and Prefar (4) gave good
control of grasses but poor control of broadleafed weeds.







Table 1


Herbicidal Control of Grass and Weeds in Corn 1970

West Florida Experiment Station
Jay, Florida


Herbicide

Atrazine
Dinoseb + Dacamine
Lasso
Lasso
Lasso + Lorox
Lasso+Lorox+Atrazine
Maloran
Maloran
Amilon
Coriben
Bay 94 337
Bay 94 337
Bladex
Bladex + Atrazine
VC 438
Eptam
Eptam + Atrazine
Sutan
Sutan + Atrazine


Time of
Lbs./A. Application

3 Pre E
3 + 1/2 Pre E
1-1/2 Pre E
3 Pre E
1.3,-+ .7 Pre E
2/3+2/3+2/3 Pre E
1-1/2 Pre E
3 Pre E
1-1/2+1/2 Pre E
1+ 2 Pre E
1/4 Pre E
1/2 Pre E
2 Pre E
1+1-1/2 Pre E
3 Pre E
4 Ppi
3 + 1 Ppi-Pre E
4 Ppi
3 + 1 Ppi-Pre E


May 4
G BLW


90
80
100
100
100
100
70
85
85
90
100
100
95
95
95
100
100
95
95


May 22
G BLW


June 10 June 30
G BLW G BLW


80
70
100
100
100
100
60
75
85
90
90
100
90
90
90
95
100
95
90


G = Grass; BLW = Broadleaf weeds.
Pre E = Pre-emergence; Ppi = Preplant incorporated.
Corn: Funks 5858 variety planted April 9 and replanted April 21.
Sutan and Eptam treatments were incorporated April 9. All other herbicides were
applied as pre-emergence spray April 10.
Rates of herbicides are expressed in pounds of actual material on a broadcast basis.
Weather: Moisture was plentiful at time of planting and throughout the growing season.
Soil type: Greenville fine sandy loam.


__







Table 2


Herbicidal Control of Grass and Weeds in Cotton 1970

West Florida Experiment Station
Jay, Florida


Time of
Lbs./A, Application


May 5 May 22
G BLW G BLW


June 10 June 30
G BLW G BLW


Treflan
Treflan
Treflan + Cotoran
Treflan + Dinoseb
Planavin
Planavin
R 12001
R 12001
VC 438
VC 438
Cotoran
Cotoran
Caparol
Caparol
Lasso
Lasso
Lasso + Dinoseb
Ryzelan EL 119
Ryzelan EL 119
Check

Cultivated check


1/2
1
1/2 + 2
1/2 + 3
3/4
1
2
4
1-1/2
3
2
4
2
4
1-1/2
3
1-1/2+3
1-1/2
3


Ppi
Ppi
Ppi
Ppi
Ppi
Ppi
Ppi
Ppi
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre
Pre


Weeds present:


95 70 95 65 95 50 9
100 85 100 80 100 70 10
Pre E 100 85 100 80 100 75 9
Pre E 100 85 100 80 90 70 9
95 60 95 55 95 40 9
95 80 95 75 95 65 9
100 80 100 75 95 60 7
100 90 100 75 100 65 9
E 60 80 50 60 20 50
E 100 90 85 80 70 80 3
E 75 85 65 75 40 65 2
E 100 85 95 85 90 80 7
E 100 85 90 80 75 75 5
E 100 95 100 90 95 90 9
E 100 85 100 80 100 80 9
E 100 90 100 90 100 90 10
E 100 100 100 90 100 90 9
E 95 80 85 75 85 60 9
E 100 85 100 80 100 65 9
Goose grass, crabgrass, pusley, red wee
lebur, morning glory and Texas sandbur.


G = Grass; BLW = Broadleaf weeds.
Pre E = Pre-emergence; Ppi = Preplant incorporated.
Incorporated chemicals applied April 9 Incorporated 2-3 inches deep with power
driven rotary hoe.
Pre-emergence chemicals applied April 10.
Cotton: Carolina Queen planted April 9. Stand good.
Herbicides: Expressed in pounds of actual material per acre on broadcast basis.
Plots: Four 4-row plots of each treatment.
Weather: Good supply of moisture at planting and during growing season.
Soil type: Greenville fine sandy loam.


Herbicide


5
0
5
0
0
5
5
5
0
5
0
5
0
5
5
0
0
0
5
d,


35
50
60
55
40
55
35
60
0
55
35
75
45
90
75
90
90
50
55
cock-


~ __







Table 3


Herbicidal Control of Grass and Weeds in Grain Sorghum 1970

West Florida Experiment Station
Jay, Florida


Herbicide

Propazine
Dinoseb
Dinoseb
Dinoseb
Dinoseb + Dacamine
Lasso + Dinoseb
Lasso
Lasso
Cotoran
Cotoran + Propazine
Maloran
Maloran
Bladex
Bladex
Lorox
Lorox + C1PC
VC 438
VC 438
Igran
Check cultivated
Check


Time of
Lbs./A. Application


2-1/2
3
4-1/2
3
3 + 1/2
3+1-1/2
1-1/2
3
2
1+1
1-1/2
3
1
2
1
1+3
1-1/2
3
2


Pre E
Pre E
Pre E
Needle stage
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


May 4
G BLW


May 22
G BLW


June 10
G BLW


June 30
G BLW


50
40
50
50
55
95
90
100
40
40
40
60
75
90
40
80
45
60
80


Weeds present: Goose grass, crabgrass, barnyard grass, pusley,
cocklebur, red weed, morning glory.


G = Grass; BLW = Broadleaf weeds.
Pre E = Pre-emergence; Ppi = Preplant incorporated.
Variety: DeKalb BR-64 planted April 9, at the rate of 10 pounds per acre.
Herbicides: All herbicides were applied as pre-emergence spray April 10. Rates of
herbicides are expressed in pounds of actual material on a broadcast
basis.
Weather: Moisture was plentiful at time of planting and throughout the growing season.
Soil type: Greenville fine sandy loam.







Table 4


Herbicidal Control of Grass and Weeds in Peanuts 1970

West Florida Experiment Station
Jay, Florida


Time of
Lbs./A. Application


May 19
G BLW


June 5 June 23
G BLW G BLW


Balan
Balan
Balan + Dinoseb
Planavin
Planavin
Planavin + Dino!
Planavin + C1PC
Vernan
R 12001
R 12001
Amchem 65-81B
Planavin
Preforan
Preforan
Maloran
Maloran
VC 438
RP 17623
RP 17623
Lasso
Lasso
Lasso + Dinoseb
Dinoseb + Dephel
Dyanap
Dinoseb
Dinoseb
Check


seb


namid


3/4
1-1/4
1-1/8+3
1/2
1
1/2 + 3
1/2 + 3
2-1/2
2
3
3
1
3
4-1/2
1-1/2
3
3
1-1/2
2
1-1/2
3
1-1/2+3
3+3
1-1/2 + 3
6
9


Ppi
Ppi
Ppi-Pre E
Ppi
Ppi
Ppi-Pre E
Ppi-Pre E
Ppi
Ppi
Ppi
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


95
95
100
100
100
100
95
95
95
95
90
85
100
95
100
100
100
95
95
90
100
100
95
95
95
100


85
90
95
100
75
95
90
90
95
95
85
50
75
75
85
95
100
85
85
95
95
95
95
90
95
95


95
95
100
100
95
100
90
95
95
95
85
90
95
95
90
90
100
95
95
90
95
95
95
90
95
95


85
90
90
95
70
90
90
90
90
90
80
45
75
70
80
85
90
90
85
90
90
90
90
85
90
100


95
95
100
100
100
100
95
90
90
95
90
90
90
95
90
95
95
95
95
90
95
90
95
90
90
95


Weeds found in non-cultivated check: Crabgrass
pusley, sickle pod, morning glory, cocklebur, I
weed and pig weed.


Pre E = Pre-emergence; Ppi = Preplant incorporated.
G = Grass; BLW = Broadleaf weeds.
Herbicides: Rate expressed in pounds of actual material on a broadcast basis. Incor-
porated materials applied April 29. All pre-emergence treatments applied
April 30.
Peanuts: Early Runner planted April 29. Stand good.
Plots: Four 4-row plots of each treatment.
Weather: There was a good supply of moisture at planting and throughout the season.
Soil type: Norfolk fine sandy loam.


Herbicide


July 16
G BLW


90 95 80
90 95 80
90 95 85
90 100 90
65 95 60
90 95 85
90 95 85
90 90 80
80 90 80
85 90 75
80 75 60
35 85 40
50 90 40
50 95 50
65 85 60
80 90 70
85 85 75
65 85 55
75 95 70
90 85 85
90 95 90
85 90 85
90 95 75
80 80 80
90 90 80
95 90 90
Goose grass,


eggar weed, red







Table 5


Herbicidal Control of Grass and Weeds in Peanuts Sprayed
at Emergence or "Cracking Time" 1970

West Florida Experiment Station
Jay, Florida


Herbicide


+ Falone
+ Sesone
Dinitro
+ Lasso
+ Preforam
+ Maloran
+ Dacamine
+ C1PC
+ RP 17623
+ Balan


Time of
Lbs./A. Application

4-1/2 Emer
6 Emer
1-1/2 + 2 Emer
1-1/2 + 2 Emer
2 + 1-1/2 Emer
1-1/2+1-1/2 Emer
1-1/2 + 3 Emer
1-1/2+1-1/2 Emer
1-1/2 + 1/2 Emer
1-1/2 + 3 Emer
1-1/2 + 1 Emer
3 + 1-1/8 Emer-Ppi
1-1/2 + 3 Emer


May 19
G BLW


100
100
100
100
100
95
100
95
95
95
100
100
95


June 5
G BLW


100
95
95
95
100
100
95
90
95
95
90
95
95


June 23
G BLW


100
100
100
95
100
95
95
90
95
95
95
100
90


July 16
G BLW


90
90
95
95
95
95
90
85
90
90
90
100
90


G = Grass; BLW = Broadleaf weeds.
Emer = Emergence; Ppi = Preplant incorporated.
Peanuts: Early Runner planted April 29. Stand good.
Herbicides: Rates expressed in pounds of actual material per acre on broadcast basis.
All treatments were applied at "cracking time" or emergence, May 9, 1970,
except Balan which was preplant incorporated April 28.
Plots: Four 4-row plots of each treatment.
Weather: Moisture was plentiful at planting and throughout the growing season.
Soil type: Norfolk fine sandy loam.


Dinitro
Dinitro
Dinitro
Dinitro
Enide +
Dinitro
Dinitro
Dinitro
Dinitro
Dinitro
Dinitro
Dinitro
Dyanap







Table 6


Herbicidal Control of Grass and Weeds in Soybeans Planted in Rows 1970

West Florida Experiment Station
Jay, Florida


Herbicide


Time of June 30 July 16 Aug. 3
Lbs./A. Application G BLW G BLW G BLW


Aug. 25
G BLW


Lorox
Lorox
Lorox + C1PC
Treflan
Treflan
Treflan + Dinoseb
Treflan + Lorox
Planavin
Planavin
Planavin + Dinoseb
Vernan
Vernam + Treflan
Kerb
Kerb
Tok E-25
Preforan
Preforan
Maloran
Maloran
Lasso
Lasso
Lasso + Dinoseb
Lasso + Lorox
Lasso + C1PC
Amiben
Dynoram
Amilon
Dinoseb + Dacamine
Dinitro
Bay 94 337
Bay 94 337
RP 17623
RP 17623
VC 438
VC 438
Dacthal + Lorox
Ryzelan
Ryzelan
Dyanap
Furloe (C1PC)
Check

Cultivated check


1 Pre E 90
2 Pre E 100
1+ 3 Pre E 95
1/2 Ppi 100
1 Ppi 100
1/2 + 3 Ppi-Pre E 100
1/2 + 1 Ppi-Pre E 100
3/4 Ppi 90
1 Ppi 95
1/2 + 3 Ppi-Pre E 95
2-1/2 Ppi 95
2 + 1/2 Ppi 100
1-1/2 Ppi 90
1-1/2 Pre E 90
3 : Pre E 100
3 : Pre E 100
4-4/2 Pre E 100
1-1/2 Pre E 95
3 Pre E 100
1-1/2 Pre E 95
3 Pre E 100
1-1/2 + 3 Pre E 100
1.3 + .7 Pre E 100
1-1/2 + 3 Pre E 100
3 Pre E 80
1-1/2 + 2 Pre E 100
1-1/2 + 1/2 Pre E 90
3 + 1/2 Pre E 100
6 Pre E 100
1/2 Pre E 95
1 Pre E 100
3/4 Pre E 95
1-1/2 Pre E 100
1-1/2 Pre E 90
3 Pre E 100
6 +1 Pre E 95
1-1/2 Pre E 90
3 Pre E 90
1-1/2 + 3 Pre E 95
4-1/2 Pre E 90


75 70
85 95
80 90
80 95
80 100
80 95
85 100
80 90
85 95
85 95
60 90
80 95
75 75
75 90
80 95
90 100
90 100
75 75
90 90
75 90
85 100
90 100
90 95
85 95
75 90
90 95
80 90
90 85
90 95
65 90
80 100
80 95
95 95
70 85
70 95
75 95
70 90
70 95
90 90
80 90


50 70 50
75 90 70
85 90 75
50 95 40
60 95 40
60 95 40
80 100 80
70 95 45
50 95 50
85 90 80
70 90 40
60 95 40
50 65 40
50 80 40
70 90 60
65 95 55
70 95 60
70 70 60
90 90 80
70 90 60
80 95 75
90 95 80
90 95 75
75 95 60
60 80 50
85 90 75
70 85 70
85 80 85
85 90 80
65 90 50
85 95 80
70 90 60
90 95 85
65 85 60
70 100 70
75 90 70
70 90 55
80 95 65
90 90 80
50 80 45


Grasses and weeds present: Grabgrass, goose grass, Egyptian
grass, red weed, cocklebur, pusley and morning glory.
Cultivated check was not hoed.


G = Grass; BLW Broadleaf weeds; Pre E = Pre-emergence; Ppi = Preplant incorporated.
Herbicide: Expressed in pounds of actual material on broadcast basis. Incorporated
material applied June 11. Pre-emergence material applied June 11-12.
Plots: Three 4-row plots of each treatment.
Beans: Hampton planted June 11 in rows.
Weather: Moisture lentiful at lantin and throu hout the rowin season.







Table 7


Herbicidal Control of Grass and Weeds in Soybeans Sown with Grain Drill 1970

West Florida Experiment Station
Jay, Florida


Rarbicidal

Lorox
Lorox
Lorox + C1PC
Treflan
Treflan
Treflan + Dinoseb
Treflan + Lorox
Planavin
Planavin
Planavin + Dinoseb
Vernam
Vernam + Treflan
Kerb
Kerb
Tok E-25
Preforan
Preforan
Maloran
Maloran
Lasso
Lasso
Lasso + Dinoseb
Lasso + Lorox
Amiben
Dynoram
Amilon
Dinoseb + Dacamine
Dinoseb
Bay 94 337
Bay 94 337
RP 17623
RP 17623
VC 438
VC 438
Dacthal + Lorox
Ryzelan
Ryzelan
Dyanap
Furloe (ClPC)
Check

Cultivated check


Time of
Lbs./A. Application


1
2
1+3
1/2
1
1+3
1/2 + 1
3/4
1
1/2 + 3
2-1/2
2 + 1/2
1-1/2
1-1/2
3
3
4-1/2
1-1/2
3
1-1/2
3
1-1/2 + 3
1.7 + 7
3
1-1/2 + 2
1-1/2 + 1
1/2 + 3
6
1/2
1
3/4
1-1/2
1-1/2
3
6+1
1-1/2
3
1-1/2 + 3
4-1/2


Pre E
Pre E
Pre E
Ppi
Ppi
Ppi-Pre E
Ppi-Pre E
Ppi
Ppi
Ppi-Pre E
Ppi
Ppi
Ppi
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
Pre E
/2 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


June 30
G ; BLW


90
100
100
100
100
100
100
90
95
95
95
100
90
90
100
100
100
95
100
100
100
100
100
85
100
90
100
100
95
100
100
100
90
100
95
90
95
100
90


July i6
G, BLW


70
90
90
95
95
95
100
90
95
95
90
100
75
90
95
100
100
85
90
90
100
100
100
85
100
90
90
95
90
100
90
95
90
100
90
90
95
90
90


Aug. 3
G BLW


65
90
90
90
95
95
100
90
95
95
90
90
60
80
90
95
90
75
90
90
95
95
95
80
95
80
85
90
90
90
90
95
80
100
90
90
95
90
85


Aug. 25
G BLW


Grasses and weeds present: Crabgrass, goose grass, Egyptian
grass, pusley, red weed, cocklebur and morning glory.
Cultivated check was not hoed.


G = Grass; BLW = Broadleaf weeds; Pre E = Pre-emergence; Ppi = Preplant incorporated.
Herbicide: Expressed in pounds of actual material on broadcast basis. Incorporated
material applied June 11. Pre-emergence material applied June 11-12.
Plots: Three 4-row plots of each treatment.
Beans: Hampton planted June 11 with grain drill.
Weather: Moisture plentiful at planting and throughout the growing season.







Table 8


Herbicidal Control of Grass and Weeds in Certain Vegetable Crops 1970

West Florida Experiment Station
Jay, Florida


Time of May 18 June 5 June 24 July 6
Herbicide Lbs,/A. Application G BLW G BLW G BLW G BLW

Planavin 1/2 Ppi 85 75 80 60 80 40 75 40
Planavin 1 Ppi 90 85 90 75 90 60 90 60
Treflan 1/2 Ppi 90 85 90 80 90 65 90 60
Preforan 3 Pre E 90 85 80 80 65 65 65 65
Preforan 4-1/2 Pre E 90 85 80 90 70 75 70 75
Dephenamid 4 Pre E 75 85 65 50 60 40 60 40
Lasso 1-1/2 Pre E 95 95 90 90 80 80 80 80
Lasso 3 Pre E 100 100 95 100 90 90 90 90
Amchem 65-81B 2 Pre E 85 75 80 50 70 40 70 40
Amchem 65-81B 3 Pre E 90 80 90 70 80 50 75 45
Amchem 69-376 2 + 4 Pre E 95 85 90 65 90 50 90 50
Bay 94 337 1/4 Pre E 90 85 85 70 75 45 70 40
Dacthal 8 Pre E 100 100 90 100 95 95 90 90
Prefar 4 Ppi 85 65 85 50 85 30 80 30
VC 433 1-1/2 Pre E 100 100 90 95 75 80 75 80
VC 438 3 Pre E 100 100 95 100 85 90 85 90


G = Grass; BLW = Broadleaf weeds.
Pre E = Pre-emergence; Ppi = Preplant incorporated.
Herbicides: Rates expressed in pounds of actual material per acre on a broadcast basis.
Incorporated materials applied April 22. Crops were planted April 23.
Pre-emergence materials applied April 24.
Plots: Four 4-row plots of each treatment. Each plot contained one row each of
snap beans, lima beans, southern peas and a mixed row of cantaloupes, cucum-
bers and watermelons.
Soil type: Ruston fine sandy loam.