PB 1580
2004 Weed Control Manual for Tennessee
Field and Forage Crops, Pastures, Farm Ponds, Harvest Aids

EXPECTED WEED RESPONSE TO COTTON HERBICIDES



PREPLANT INCORPORATED AND PREEMERGENCE HERBICIDES
  Treflan 
Prowl or Pendimax 3.3
Cotoran or Meturon
Command + Cotoran or Meturon
Dual II Magnum
  Zorial 
 PPI
PPI/PRE
PRE
PRE
  PRE
PRE
1. Crabgrass
9
9
8
8
8
8
2. Fall Panicum
9
9
8
8
8
8
3. Foxtail
9
9
8
8
8
8
4. Goosegrass
9
9
8
8
8
8
5. Johnsongrass (seedling)
9
8
6
6
8
7
6. Johnsongrass (rhizome)
2
2
0
1
0
4
7. Broadleaf Signalgrass
8
8
7
8
8
7
8. Yellow Nutsedge
0
0
0
1
8
6
9. Cocklebur
1
1
8
8
1
5
10. Jimsonweed
0
0
8
8
1
5
11. Lambsquarters
7
7
9
9
7
8
12. Morningglory    Entireleaf/Ivy a
5
5
7
7
0
0
13.                              Pitted b
7
7
8
8
0
6
14.                              Tall c
4
4
6
6
0
0
15. Pigweed, Palmerd
9
8/6##
5
5
6
6
16. Pigweed, smoothe
9
8
9
9
8
7
17. Prickly Sida
0
0
6
8
0
8
18. Common Ragweed
0
0
9
9
0
8
19. Sicklepod
0
0
8
8
2
1
20. Smartweed
0
0
8
8
1
6
21. Spotted Spurge
0
0
7
7
6
7
22. Spurred Anoda
0
0
4
8
0
7
23. Velvetleaf
0
3
5
9
0
8
24. Volunteer RR Soybeans 0 0 9 9 0 1
25. Cotton Tolerance
1
1
1
1*
1
1
SKIP TO LEGEND

EARLY AND LATE POSTDIRECTED HERBICIDES
DSMA or MSMA
Cotoran or Meturon + MSMA
 Aim
Karmex or Direx + MSMA
Caparol or Cotton-Pro + MSMA
Cobra + MSMA
 Goal + MSMA
Linex + MSMA
EPD
EPD
LPD
LPD
LPD
LPD
LPD
 LPD
1. Crabgrass
8
8
 0
9
8
8
 8
9
2. Fall Panicum
8
8
 0
9
8
8
 8
9
3. Foxtail
8
8
 0
9
8
8
 8
9
4. Goosegrass
7
8
 0
9
8
8
 8
9
5. Johnsongrass (seedling)
8
8
 0
8
8
8
 8
9
6. Johnsongrass (rhizome)
5
3
 0
4
3
3
 3
4
7. Broadleaf Signalgrass
7
7
 0
8
7
8
 8
8
8. Yellow Nutsedge
7
7
 0
7
7
7
 7
7
9. Cocklebur
8
8
 6
9
9
8
 8
8
10. Jimsonweed
8
8
 -----
9
9
8
 8
8
11. Lambsquarters
7
8
 8
9
9
7
 7
7
12. Morningglory    Entireleaf/Ivy a
6
8
 8
8
6
9
 9
8
13.                              Pitted b
6
9
 8
9
9
9
 9
8
14.                              Tall c
5
8
 8
8
7
9
 9
-----
15. Pigweed, Palmerd
4
5
 7
4
8
8
 8
8
16. Pigweed, smoothe
6
8
 8
8
8
8
 8
9
17. Prickly Sida
4
7
 6
6
4
6
 4
8
18. Common Ragweed
8
8
 -----
8
8
8
 8
8
19. Sicklepod
6
8
 0
7
7
6
 6
8
20. Smartweed
6
7
 -----
8
8
8
 8
8
21. Spotted Spurge
5
7
 6
7
7
8
 7
7
22. Spurred Anoda
2
3
 -----
5
4
5
 4
8
23. Velvetleaf
4
5
 10
5
6
5
 5
7
24. Volunteer RR Soybeans 4 6 2 8 7 3 4 6
25. Cotton Tolerance
1
1
 1
2
2
3
 3
2
SKIP TO LEGEND

OVERTOP POSTEMERGENCE HERBICIDES
Roundup UltraMax/
Touchdown/others**
Buctril # 
Ignite***
Staple 
Assure II 
Fusilade 
Fusion 
Poast/ Poast Plus
Select 
OT/LPD
OT
 OT
OT
OT
OT
OT
OT
OT
1. Crabgrass
9
0
 6
0
8
8
9
9
9
2. Fall Panicum
9
0
 6
0
8
8
9
9
9
3. Foxtail
9
0
 7
0
8
8
9
9
9
4. Goosegrass
9
0
 6
0
8
8
9
9
9
5. Johnsongrass (seedling)
10
0
 7
0
9
9
9
9
9
6. Johnsongrass (rhizome)
9
0
 2
0
9
9
9
6
9
7. Broadleaf Signalgrass
9
0
 6
0
8
8
9
9
9
8. Yellow Nutsedge
7
0
 2
1
0
0
0
0
0
9. Cocklebur
10
9
 8
8
0
0
0
0
0
10. Jimsonweed
8
8
 8
8
0
0
0
0
0
11. Lambsquarters
8
8
 -----
-----
0
0
0
0
0
12. Morningglory    Entireleaf/Ivy a
8
9
 9
8
0
0
0
0
0
13.                              Pitted b
7
9
 9
7
0
0
0
0
0
14.                              Tall c
8
9
 9
3
0
0
0
0
0
15. Pigweed, Palmerd
9
2
 6
7
0
0
0
0
0
16. Pigweed, smoothe
9
4
 8
9
0
0
0
0
0
17. Prickly Sida
6
6
 3
2
0
0
0
0
0
18. Common Ragweed
8
7
 -----
-----
0
0
0
0
0
19. Sicklepod
8
2
 8
3
0
0
0
0
0
20. Smartweed
8
8
 8
7
0
0
0
0
0
21. Spotted Spurge
9
3
 -----
3
0
0
0
0
0
22. Spurred Anoda
7
8
 -----
8
0
0
0
0
0
23. Velvetleaf
7
8
 6
9
0
0
0
0
0
24. Volunteer RR Soybeans 0 7 9 6 0 0 0 0 0
25. Cotton Tolerance
0**
0#
 0***
1
0
0
0
0
0


PPI=Preplant Incorporated     PRE=Preemergence     EPD=Early Post-Directed     LPD=Late Post-Directed     OT=Overtop

a Many hairs on upper leaf surface     b No plant hairs on upper leaf surface     c A few hairs on upper leaf surface
d No hairs on leaf     e Many hairs on leaf  

*Di-Syston must be used in-furrow.

**Cotton variety must be Roundup Ready and applications properly timed.

***Cotton variety must be Liberty Tolerant.

#Cotton variety must be BXN. 

##- 8 for PPI; 6 for PRE

KEY TO RESPONSE RATINGS: 0=No control or crop injury; 10=100% control or severe, yield reducing crop injury. Ratings are based on labeled rates of each herbicide, applied at the optimum timing for each weed.

 HOME