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Herbicidal weed control in...
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Permanent Link: http://ufdc.ufl.edu/UF00053599/00004
 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: 1964
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: UF00053599:00004

Full Text







/ West Florida Experiment Station **
Jay; Florida
t FloridL nation Mineo ReportI S 65-2 March 1, 1965
'bHerbicidal Control of Weeds in Corn, Cotton,
Peanuts and Soybeans e-1964
R ,L. Smith.
Associate Agronomist

Results from weed control experiments with corn, cotton, peanuts and soybeans
in 1964 are discussed in this report* Grain sorghum was dropped from the
program for 1964 and wai replaced with cotton, Cotton is planted to a limited
acreage in the Western Florida area. However, this acreage is considerably
more than that planted to grain dorghtta and also, good weed control practices
have been developed for grain iorghdau

Chemicals used in these tests were applied preemergencd or were incorporated
prior to planting; Rates of herbicides expressed in the test or in parentheses
following the names of chemicals represents pounds of actual material applied
per acre on a broadcast basis. A rotary hoe driven from a tractor power take-
off was used to incorporate the herbicides which were sprayed on a broadcast
basis. One exception to preemergence sprays was a test in which "cracking time"
applications were applied at emergence of peanuts. Four 4-row plots of each
treatment were used in the experiment with corn, cotton and peanuts. In the
soybean test, three replications were applied to beans in rows and three to
beans in the drill. The crops were planted, cultipacked and sprayed as soon as
possible.
The area for these tests has been planted to corn for a number of years
and has become heavily infested with crabgraas, watergrass, barnyard grass,
Florida purely, cockelbur, coffeeweed, red weed and morning glory. Sandspur,
pigweed, beggerweed and Texas sandspur were present but not in uniform stands.

CORN: Cokers 67 corn was planted 16 inches in the drill in 38 inch rows
in Rusto fine sandy loam soil on April 15. A preplant application of 300
pounds of 6-24-24 fertilizer was disked into the soil prior to planting.
Treatments requiring incorporation were applied on April 5 and thoroughly mixed
with the top 2 to 3 inches of soil. Following planting, the soil was cultipacked
and the preemergence sprays were applied with a 4-row sprayer. Estimates of
weed control by the herbicides were made May 1, 11, 20 and June 2.

Simssine (3), Atrazine + Simasine (1l + lh), Atrasine (3) and Atrazine +
Lorox (~1 + 1h) gave excellent and persistent control of grass and weeds with
no injury to the corn. Lorox + Karmex (2 + 1), and dinitro (9) also gave
excellent and persistent control of grasses and weeds but were slightly toxic,
Lorox (3) gave excellent control but was toxic. CP 31393 (3) (4) appears
promising and will be tested further. Tordon, a new herbicide, was applied at
rate of 2, 3, and 4 ounces actual per acre. Control of broadleaf species











including cocklebur and coffeeweed was very good. Grasses or narrow leaf species
were not seriously affected. Toxicity to corn was observed at 3 and 4 ounce
rates.

COTTON: Incorporated and preemergence treatments were applied to cotton.
A heavy downpour of rain immediately afterwards ruined the test for all
practical purposes. No results will be presented for 1964. However, a weed
control test for cotton will be included in the program for 1965.

PEANUTS: Peanuts planted in 38 inch rows on Red Bay fine sandy loam soil
were fertilized with 500 pounds of 0-14-14. Treatments to be incorporated were
sprayed on May 4 and peanuts were planted and cultipacked on May 5. Preemergence
treatments were applied the following day. Data were taken on May 22, June 2,
12 and 25.

The data for the May 22 reading indicate that all treatments were giving
good results. It is thought that the upper layer of the soil had become very
dry from lack of rain and that germination of grasses and weeds was negligible.
As soon as moisture was more plentiful, weed seeds began to germinate and a
more true picture of the efficiency of the herbicides was observed. This is
reflected in observations made on later dates.

Toxicity was observed from the use of Prometryne (21), R 1607 (2) (3) and
Karmex (2). CIPC both liquid and granular (6), Sesone (3) and Treflan (1)
were slightly toxic to peanuts.

Good results were obtained from applications of dinitro (9), Treflan (1)
(1), CIPC (6), Weed Beads (20) and combinations of dinitro (45) with CIPC (4),
Amiben (2), Diphenamid (3), 2,4-D Amine (5), 2,4-DB (1) and Butoxine amine (1).

Fourteen treatments were applied to peanuts at "cracking time". The
weather was dry and very little moisture was present in the top inch or so of
the soil surface. Considerable burning of the foliage was observed. However,
the peanuts recovered rapidly and resumed normal growth. Treatments giving
best results were dinitro + Zytron (11 + 6), dinitro (6) and B 377 (3).

SOYBEANS: Three hundred pounds of 6-24-24 were applied broadcast to Red
Bay fine sandy loam soil and disked in prior to planting June 10 and 11.
Treatments to be incorporated were sprayed on and thoroughly mixed with the
soil to a depth of 2 to 3 inches. Three replications of Florida WH 57-1 beans
were planted both in rows and with a grain drill. After cultipacking,
preemergence treatments were applied. Reading on weed control by the various
treatments were made June 22, 30, July 10 and 21.

The following chemicals gave good to excellent results with beans planted
in rows and broadcast: Dacthal (6) (8), Weed Beads (20), dinitro (6), Zytron
(M2025) (6), Herban (6), CIPC liquid and granular (6), Lorox (3), Karmex (2),
Falladin (2 + 1), and CP 31393 (4). Combinations with dinitro (3) + butyrics
(5), Zytron (3), Dyphenamid (2) (3), and CIPC (3) were also efficient.








3


Practically all treatments gave better control with beans planted broad-
cast. For example, Karmex (1) was almost as good as Karmex (2), Lorox (2) was
approximately equal to Lorox (3) with broadcast beans and was better than
higher rates of same chemical applied to beans in the drill. Dymid (6) and
Eptam + 2,4-D (2 + 1) vere appreciably more effective with broadcast beans.
These data indicate that lower and, consequently, more economical rates could
be used with broadcast beans,

Treatments causing toxicity were Lorox (4), Treflan (1), Prometryne (2t),
Weed Beads (30), Tillam (3), and R 1607 (3). Initial toxicity was observed
from treatments where butyrics were used in combination with dinigro. 2hese
apuanom disappeared after th* beans were 6 to 10 inches high.











Herbicidal Control of Grass and Weeds in Corn 1964
West Florida Experiment Station
Jay, Florida


May 1 1,,aitl Ma 20 June 2
Herbicide Lbso/A., BLW b BLW W BLW G BLW

R 1910 (Inc.) 2 9 6 6 3 6 3 5 2
R 1910 (Inc.) 4 9 8 8 6 8 6 8 5
Lorox 2 10 9 8 9 8 7 6 6
Lorox 3 10 9 9 9 9 9 9 8
Lorox + Amiben 1 +2 10 9 8 7 8 8 7 7
Lorox -:- Atrezine 1& + 1 10 10 9 9 9 9 9 8
Lorox + Karmex 2 + 1 10 9 9 9 9 9 9 8
Lorox + Diphenamid 2 2 10 9 9 8 8 6 7 6
Karmex 2 10 10 8 9 8 8 8 7
CP 31393 3 10 8 9 7 8 7 6 6
CP 31393 4 10 9 10 -8 9 8 9 7
Eptam + 2,4-D 2 : 1 10 10 8 9 7 8 7 8
Fenac 1 10 9 9 9 7 7 6 5
Atrazine 3 10 9 9 9 9 9 9 8
Simazine 3 10 10 10 10 10 10 10 10
Atrczine + Simezine 1Vs + 1 10 10 10 10 10 9 9 9
Falone 2 8 7 8 6 7 5 7 5
Randox T 9 10 8 9 6 8 5 8 5
CIPC + Fenac 6 + 1 l0 9 8 8 7 6 6 5
Dinitro -+- 2,4-D Amine 4h + 1 10 9 8 9 8 8 8 7
Dinitro 9 10 9 9 9 9 8 9 7
Dinitro 6 10 9 7 7 7 6 6 6
Tordon 1/8 8 9 5 9 3 9 3 9
gordon 1/4 9 9 5 10 5 9 4 9
Tordon 1/2 10 9 5 10 4 9 5 9
G Grass
B Broadleaf Weeds
Variety Cokers 67, planted April 15, 1964
Herbicides Rates expressed in pounds actual material. Those marked
"Inc." were incorporated with power driven rotary hoe.
Applied April 16-17
Plots Four 4 row plots of each treatment
Weather Optimum supply of moisture at planting followed by three
weeks of dry weather and then optimum moisture for rest of
season.










-2-


Herbicidal Control of Grass and Weeds in Peanuts 1964
West Florida Experiment Station
Jay, Florida


Herbicide
Dinitro
Dinitro
B 377
B 377
Sinox PE
Falone
Falone
Prometryne
Prometryne
Treflan (Inc.)
Treflan (Inc.)
Trefmid (Inc.)
R 1607
R 1607
Karmex (Ihc.)
Karmex
Tillam (Inc.)
CIPC L
CIPC G
CIPC G + Alanap
CIPC + Dinitro
Weed Beads
Sesone
Amiben
Amiben + Dinitro
Diphenamid
Dephenamid + Dinitro
Dinitro + Alanap
Dinitro + 2,4-DA
Dinitro + 2,4-DB
Dinitro + Butoxine Amine
Enid + Falone
Fallodin
Dacthal
Eptam + 2,4-D


Lbs.
6
9
3
6
9
1


2
3

12
2

3
1
2
3
6
6
2
4
20
3
3
2
6
3
41
4-2
42
4k
2
4
8
2


May 22
/A. G BLW
10 10
10 10
10 8
10 9
10 9
10 6
10 8
10 8
10 9
10 10
10 10
+ 1 10 9
10 8
10 9
10 8
10 9
10 8
10 8
10 7
+3 9 6
+ 4k 10 10
10 10
10 7
10 7
+ 4 10 9
10 6
+ 44 10 10
+3 10 9
+ k 10 9
+1 10 10
+ 1 10 10
+ 1 10 7
+3 10 9
10 6
+ 1 10 9


G Grass
BLW Broadleaf Weeds
Variety Dixie Runner, planted May 5, 1964
Herbicides Rates expressed in pounds of actual material. Those marked
"Inc." were incorporated with a power driven rotary hoe,
Incorporated herbicides were applied May 4 and preemergence
herbicides were applied May 6.
Plots --Four 4 row plots of each treatment.
Weather+Sufficient moisture was present for germination. However, three
weeks of dry weather followed planting,


June 2
G BLW
9 8
10 9
10 7
10 8
10 9
7 5
9 7
9 7
10 9
10 9
10 10
10 9
9 9
10 8
9 7
9 9
9 8
10 8
10 7
9 5
10 9
9 9
10 7
10 6
10 8
10 5
10 9
10 8
9 9
9 8
10 9
9 7
9 8
9 6
9 9


June 12
G BLW
8 7
10 9
8 6
9 7
10 8
6 3
9 5
6 5
9 8
10 9
10 9
10 8
9 7
10 8
8 6
8 7
9 6
9 8
9 6
8 4
10 9
9 8
10 5
9 6
10 8
10 5
10 9
8 7
9 9
8 8
9 8
9 4
8 8
9 5
9 8


June 25
G BLW
6 6
8 8
6 6
7 6
9 8
4 3
8 5
5 5
8 8
10 8
10 9
9 8
7 7
8 8
8 6
8 7
9 6
9 7
9 6
6 4
9 8
8 7
9 5
9 5
9 8
10 5
10 8
7 6
8 7
8 7
8 8
7 3
8 7
8 5
7 6












-3-


Herbicidal Control of Grass and Weeds in Peanuts
Sprayed ct Emergence or "Cracking Time" 1964
West Florida Experiment Station
Jay, Florida


Herbicide
Dinitro + Amiben
Dinitro + Sesone
Dinitro + Falone
Dinitro + Fenac
Dinitro + Alanap
Fallodin
Dinitro + Enid
Dinitro + MCPB
Dinitro + Butyrac
Dinitro + Zytron
Dinitro 6
Eptam + 2,4-D
B 377
Karmex DL + WK


Lbs./A.
1% + 2
1 + 2
1 + 1
1.+ +
2 +1
2 +1
12 + 2
1 + 1
11 + 1
1 + 6
6
2 + 1
3
2


May 22
G BLW
10 8
10 9
10 9
10 8
10 8
10 8
10 9
10 9
10 9
10 10
10 9
10 8
10 9
10 8


June 2
S BLW
9 6
9 8
10 7
10 6
7 5
10 8
9 7
9 8
8 8
10 10
10 9
9 8
9 9
6 7


June 12
G BLW
8 5
9 6
8 5
9 6
6 4
9 7
9 5
9 5
7 5
10 9
10 9
9 5
9 8
3 3


June 25
G BLW
6 5
8 5
7 5
8 6
5 4
7 6
9 5
8 5
7 5
10 9
9 8
8 5
7 7
3 3


G Grass
BLW Broadleaf Weeds
Variety Dixie Runner, planted May 5, 1964
Herbicides Expressed in pounds of actual material applied May 15.


___












Preemergence Control of Weeds and Grass in Soybeans with Herbicides 1964
Beans in Rows
West Florida Experiment Station
Jay, Florida


June 22 June 30 July 10 July 21
Herbicides Lbs./A. G BLW G BLW G BLW G BLW
Amiben 2 8 6 8 3 8 3 8 3
Amiben 4 10 8 10 7 10 6 10 5
Lorox 2 9 7 9 7 9 6 6 6
Lorox 3 9 7 9 7 9 7 9 7
Lorox 4 10 9 10 9 10 8 10 9
Karmex 1 9 7 8 7 7 6 5 5
Karmex 2 9 8 9 9 9 8 9 8
Eptam + 2,4-D 2 + 1 8 8 7 7 6 7 6 7
Tillam 2 8 7 8 6 5 4 2 2
Tillam 3 6 7 6 5 5 4 3 3
R 1607 2 7 5 7 4 6 4 4 4
R 1607 3 8 7 6 6 5 6 5 6
Treflan k 8 6 8 5 8 6 8 6
Treflan 1 10 8 10 7 10 6 10 7
Trefmid 4 + 2 9 7 9 9 9 6 9 7
Prometryne 1 9 8 9 l 8 6 3 5
Prometryne 2% 10 9 9 9 9 8 9 9
Ametryne 1% 9 8 9 8 9 7 9 7
Dacthal 6 10 8 10 8 9 8 9 8
Dacthal 8 10 9 10 9 10 8 10 8
Weed Beads, 20 10 8 10 8 10 8 9 8
Weed Beads 30 10 9 10 9 10 9 10 9
Dinitro 6 10 9 10 8 10 9 10 9
Dinitro + Butyrac 3 + 4 10 8 10 7 10 7 10 7
Dinitro + Butyrac 3 +1 9 8 9 8 9 7 9 7
Dinitro + Butoxine Amine 3 + 4 9 7 9 6 9 6 9 6
Dinitro + Butoxine Ester 3 + 4 10 7 10 6 10 6 9 6
Dinitro + MCPB 3 + 4 9 8 9 8 9 7 9 7
Dinitro + Alanap 3 + 1% 8 7 8 5 7 6 6 5
Dinitro + Alanap 3 + 3 9 7 7 7 7 6 7 5
Dinitro + M 2025 3 + 3 9 9 9 9 9 8 9 8
M 2025 6 10 8 10 8 10 8 9 8
Dinitro + Enid 3 + 2 10 8 10 8 10 8 10 8
Dinitro + Enid 3 + 3 10 9 10 9 10 9 10 9
Dymid 6 10 7 10 6 10 7 10 7
Dinitro + CIPC 3 + 3 10 9 10 8 10 8 9 7
CIPC L 6 10 8 10 7 9 8 8 8
CIPC G 6 10 7 10 7 9 7 9 6
Herban 14 10 9 9 8 9 7 8 7
Falone 1 9 7 8 4 5 4 4 4
Falone 2 9 8 9 6 7 6 7 6
Fallodin 2 + 1 10 9 10 8 8 7 7 6
12377 3 8 7 8 5 7 5 6 5
12377 6 9 8 9 6 8 6 5 5
Randox 6 10 7 10 5 8 7 8 7
Vegadex 8 10 6 10 5 7 5 7 4
CP 31393 3 10 8 9 6 8 5 7 5
CP 31393 4 10 9 10 8 9 8 8 8
G Grass
BLW Broadleaf Weeds
Variety Florida WH 57-1, planted June 10 and 11
Herbicides Expressed in pounds actual material
Incorporated material applied June 10
Preemergence material applied June 11 and 12
Soil Type Red Bay fine sandy loam
Weather Moisture supply at planting was fair stand was irregular
Plots Three 4 row plots of each treatment










-5-


Preemergence Control of Weeds and Grass in Soybeans with Herbicides 1964
Beans Sown tvih Grain Drill
West Florida kpertient Station
Jay, Pl6rida


Herbicide
Amiben
Amiben
Lorox
Lorox
Lorox
Karmex
Karmex
.ptam +2 2,4-D
Tillam
Tillam
R 1607
R 1607
Treflan
Treflan
Trefmid
Prometryne
Prometryne
Ametryne
Dacthal
Dacthal
Weed Beads
Weed Beads
Dinitro
Dinitro + Butyrac
Dinitro + Butyrac
Dinitro + Butoxine Amine
Dinitro + Butoxine Ester
Dinitro + HCPB
Dinitro + Alanap
Digitro + Alanap
Ditiiro -:- M 2025
M1:2025
binitro + Enid
Dinitro + Enid
Dymid
Dinitro + CIPC
CIPC L
CIPC G
Herban
Alone
Alone
Fallodin
B 377
B 377
Randox
Vegadex
CP 31393
CP 31393


June 22
Lbs./A. G BLW


2
4
2
3
4
1
2
2 +1
2
3
2
3
4
1
+ +2
1V
24
14
6
8
20
30
6
3 +
3 +1
3 +
3 + 4
3 +
3 +14
3 +3
3 +3
6
3 +2
3 +3
6
3 +3
6
6
18
1
2
2 +1
3
6
6
8
3
4


10 7
10 9
10 9
10 10
10 10
10 9
10 10
10 9
9 8
10 7
10 8
10 8
10 7
10 8
10 8
10 8
10 10
9 8
10 8
10 9
10 10
10 10
10 10
9 9
10 10
9 9
10 9
10 9
9 9
9 9
10 9
10 10
10 9
10 10
10 9
10 9
10 9
10 9
9 9
8 8
9 9
10 9
9 9
10 9
10 8
9 8
9 9
10 8


June 30
G BLW
10 6
10 8
10 9
10 9
10 9
10 9
10 9
10 9
9 6
10 5
10 7
10 8
10 6
10 7
10 7
10 8
9 9
8 8
10 8
10 9
10 9
10 10
10 9
9 9
10 10
9 9
10 9
9 9
8 9
9 9
9 9
10 9
10 9
10 9
10 9
10 9
10 9
10 9
9 8
7 6
9 8
9 9
9 8
9 9
9 8
8 8
9 8
10 8


July 10 July 21
G BLW G BLW
9 6 8 6
10 8 10 8
9 8 8 8
10 9 10 9
10 9 10 9
88 6 8
9 8 9 9
8 9 8 9
6 5 4 4
7 5 5 4
6 6 5 5
7 6 5 6
9 7 8 7
9 7 9 7
9 7 9 7
8 7 7 7
9 8 9 9
8 7 8 7
10 8 10 8
10 9 10 8
10 9 10 8
10 10 10 9
10 8 10 8
9 8 9 8
10 9 10 9
98 9 9
9 8 9 7
9 9 9 8
8 8 88
9 8 98
9 9 9 9
10 9 10 7
10 9 10 9
10 9 10 9
10 8 10 8
10 9 10 9
10 8 10 8
10 8 10 7
9 7 9 6
7 6 6 5
9 7 8 7
9 8 9 7
8 6 7 6
8 7 7 7
9 7 9 7
8 7 8 6
8 8 8 7
10 7 10 8


-- --~- ,i ....
G Grass
BLW Broadleaf Weeds
Variety Florida lH 57-1, planted June 10 and 11
Herbicides Expressed in pounds actual material
Incorporated material applied June 10
Preemergence material applied June 11 and 12
Soil Type Red Bay fine sandy loam
Weather Moisture supply at planting was fair stand was irregular
Plots Three 4 row plots of each treatment