2,4-D Comparative Data

1 Trade Names

2,4-D acid

Empirical Formula: C8H6Cl2O3

Molecular Weight: 221.0

CAS Registry No.: 94-75-7

PC Code: 030001





2,4-D sodium salt (Na)

Empirical Formula: C8H5Cl2NaO3

Molecular Weight: 243.03

CAS Registry No.: 2702-72-9

PC Code: 030004



KENDON WILLIAM PEAR STOP DROP

NUFARM SODIUM 2,4-D SELECTIVE HERBICIDE

TORNADO DF HERBICIDE



2,4-D diethanolamine salt (DEA)

Empirical Formula: C12H17Cl2NO5

Molecular Weight: 326.18

CAS Registry No.: 5742-19-8

PC Code: 030016



COUNTRY 2,4-D LOW ODOUR 500 SELECTIVE HERBICIDE

NUFARM AMICIDE 625-LOW SELECTIVE HERBICIDE (mix of DEA and 2,4-D triethanolamine salt)

ZEPHYR 625 2,4-D LOW ODOUR HERBICIDE (mix of DEA and 2,4-D triethanolamine salt)

CROP CARE AMINE 625 SELECTIVE HERBICIDE (Mix of DMA and DEA)

FARMOZ 2,4-D AMINE 625 SELECTIVE HERBICIDE (Mix of DMA and DEA)

NUFARM AMICIDE 625 SELECTIVE HERBICIDE (Mix of DMA and DEA)

UNITED FARMERS 2,4-D AMINE 625 SELECTIVE WEEDKILLER (Mix of DMA and DEA)



2,4-D dimethylamine salt (DMA)

Empirical Formula: C10H13Cl2NO3

Molecular Weight: 266.13

CAS Registry No.: 2008-39-1

PC Code: 030019



FARMOZ 2,4-D AMINE 500 SELECTIVE WEEDKILLER

NUFARM 2,4-D 720 SELECTIVE HERBICIDE

CONQUEST AMINE 625 SELECTIVE HERBICIDE

CROP CARE AMINE 625 SELECTIVE HERBICIDE (Mix of DMA and DEA)

FARMOZ 2,4-D AMINE 625 SELECTIVE HERBICIDE (Mix of DMA and DEA)

NUFARM AMICIDE 625 SELECTIVE HERBICIDE (Mix of DMA and DEA)

UNITED FARMERS 2,4-D AMINE 625 SELECTIVE WEEDKILLER (Mix of DMA and DEA)



2,4-D isopropylamine salt (IPA)

Empirical Formula: C11H15Cl2NO3

Molecular Weight: 280.04

CAS Registry No.: 5742-17-6

PC Code: 030025



4FARMERS 2,4-D AMINE 500 HERBICIDE

FARMOZ ZULU 300 HERBICIDE

NUFARM SURPASS 300 HERBICIDE

UNITED FARMERS 2,4-D AMINE 300 HERBICIDE



2,4-D triisopropanolamine salt (TIPA)

Empirical Formula: C17H27Cl2NO6

Molecular Weight: 412.31

CAS Registry No.: 32341-80-3

PC Code: 030035



TORDON 75-D HERBICIDE



2,4-D 2-butoxyethyl ester (BEE)

Empirical Formula: C14H18Cl2O4

Molecular Weight: 321.20

CAS Registry No.: 1929-73-3

PC Code: 030053







2,4-D 2-ethylhexyl ester (2-EHE) 1

Empirical Formula: C16H22Cl2O3

Molecular Weight: 333.27

CAS Registry No.: 1928-43-4

PC Code: 030063



4FARMERS 2,4-D ESTER 600 HERBICIDE

CROP CARE LV ESTER 600 HERBICIDE





2,4-D isopropyl ester (IPE)

Empirical Formula: C11H12Cl2O3

Molecular Weight: 263.12

CAS Registry No.: 94-11-1

PC Code: 030066







2,4-D isooctyl ester

FARMOZ 2,4-D LV ESTER 600 HERBICIDE

NUFARM LV ESTERCIDE 600 HERBICIDE

NUFARM NUTRIL SELECTIVE HERBICIDE



2,4-D butyl ester

4FARMERS 2,4-D ESTER 800 HERBICIDE (ethyl/butyl ester)



2,4-D isobutyl ester

GENFARM 2,4-D ESTER 800 EC HERBICIDE

SIPCAM SIESTER 800 HERBICIDE



2,4-D ethyl ester

CROP CARE ESTER 800 SELECTIVE HERBICIDE

FARMOZ 2,4-D ESTER 800 HERBICIDE

NUFARM ESTERCIDE 800 HERBICIDE

UNITED FARMERS ESTER 800 HERBICIDE

4FARMERS 2,4-D ESTER 800 HERBICIDE (ethyl/butyl ester)


2 PRICE:

2,4-D acid



2,4-D sodium salt (Na)



2,4-D diethanolamine salt (DEA)


2,4-D dimethylamine salt (DMA)$4.4/L



2,4-D isopropylamine salt (IPA)



2,4-D triisopropanolamine salt (TIPA)



2,4-D 2-butoxyethyl ester (BEE)


2,4-D 2-ethylhexyl ester (2-EHE)$6.4/L



2,4-D isopropyl ester (IPE)


2,4-D isooctyl ester$6.4/L


2,4-D ethyl ester $8.8/L



2,4-D butyl ester
$8.8/L



2,4-D isobutyl ester
$8.8/L


3 ACTIVE INGREDIENTS: 2,4-D

4 CHEMICAL GROUP: I

5 RELATED HERBICIDES:


2,4-D amine 5002,4-D Amine 500g/L
2,4-D amine 6252,4-D Amine 625g/L
2,4-D amine plus Dicamba2,4-D 250gL + dicamba 100g/L
2,4-D ester 8002,4-D Ester 800g/L
2,4-D ester plus Garlon2,4-D ester 530g/L + triclopyr 200g/L
2,4-D LV ester 6002,4-D LV ester 600-680g/L
2,4-DB 4002,4-DB 400g/L
2,4-DB 5002,4-DB 500g/L
2,4-DB plus MCPA2,4-DB 200g/L + MCPA 250g/L
AccessPicloram 120g/L + triclopyr 240g/L
Dicamba 200Dicamba 200
Dicamba 25 plus MCPA 150Dicamba 25g/L + MCPA 150g/L
Dicamba 500Dicamba 500g/L
Dicamba 700Dicamba 700g/kg (or 750 g/kg)
Dicamba plus MCPADicamba 80g/L + MCPA 340g/L
FallowBoss2,4-Dam 300g/L+Aminopyralid 7.5g/L+picloram 75g/L
Garlon 600Triclopyr 600g/L
Grazon ExtraAminopyralid 8g/L+picloram 100g/L+triclopyr 300g/L
HotshotAminopyralid salt 10g/L + fluroxypyr-meptyl 140g/L
LontrelClopyralid 300g/L
Lontrel 750Clopyralid 750g/kg
MCPA amineMCPA 500-750g/L
MCPA LVEMCPA LV ester 500g/L (or570)
MCPB 400MCPB 400g/L
PicloramPicloram 240g/L
Picloram plus TriclopyrPicloram 100g/L + triclopyr 300g/L
Starane 200Fluroxypyr 200-400g/L
Tordon 242MCPA 420g/L + picloram 26g/L
Tordon 75-D2,4-D 300g/L + picloram 75g/L
Tordon DSPicloram amine 100g/L + triclopyr amine 200g/L
Tordon RegrowthMasterAminopyralid 25g/L+picloram100g/L+triclopyr 200g/L
Tri-kombi24D Ester 800g/L + Dicamba 40g/L + Mecoprop 336g/L



For more info see 2,4-D Properties

6 GENERAL DESCRIPTION:

The 2,4-D's are mainly foliar absorbed, post emergent herbicides for the control of broad leaved weeds.

7 APPLICATION METHODS AND TIPS:

Varies depending on the formulation. See individual products.

The high volatile formulations are generally preferred in stubble retention and scrub or bushland areas where direct contact by the spray droplet may not be possible. Generally the short chain (high volatile) esters are more active than the long chain esters which are more active than the amine which are more active than the salts which are more active than the acid formulations. The esters which are oil soluble are often preferred for summer applications when weeds tend to be more waxy. The amine formulations are preferred where selectivity is marginal for example on oats and clover pastures.

8 WEATHER:

The ester formulations are generally rainfast in 3 hours whereas the amines and salts generally take 6 hours to become rainfast.

9 ADJUVANTS:

Wetting agents often used on hard to wet plants.

10 WATER QUALITY:

ChemicalHard waterpHColloidsSalty water
2,4-D acidLeast tolerant< 8 OKLess tolerantTolerant
2,4-D Na saltLeast tolerant< 8 OKLess tolerantTolerant
DEA saltLeast tolerant< 8 OKLess tolerantTolerant
DMA saltLeast tolerant< 8 OKLess tolerantTolerant
IPA saltLeast tolerant< 8 OKLess tolerantTolerant
TIPA saltLeast tolerant< 8 OKLess tolerantTolerant
IPE esterLess tolerant TolerantMay separate
BEE esterLess tolerant TolerantMay separate
EHE esterLess tolerant TolerantMay separate
Ethyl esterLess tolerant TolerantMay separate
Butyl esterLess tolerant TolerantMay separate

11 COMPATIBILITY:

Trace elements: Amine formulations are not compatible with many copper and zinc products. Ester formulations are generally more compatible providing the emulsifier is not overloaded and the product separates from the water (do a jar test).

See HerbiGuide Compatibilities button.

12 EQUIPMENT:

ChemicalBoomHand leadAerialMister
2,4-D acidPoorPoorPoorPoor
2,4-D Na saltOKOKOKMarginal
DEA saltOKOKOKMarginal
DMA saltOKOKOKMarginal
IPA saltOKOKOKMarginal
TIPA saltOKOKOKMarginal
IPE esterOKOKOK Marginal
BEE esterOKOKOKMarginal
EHE esterOKOKOKMarginal
Ethyl esterOKOKOK OK
Butyl esterOKOKOKOK



Regulations require the use of coarse spray droplets when applying 2,4-D. Application of the ethyl and butyl (high volatile) esters by air are under review.

13 SPRAYER DECONTAMINATION:

ChemicalClean up Hand lead
2,4-D acidTriple rinse with soapy water.Wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
2,4-D Na saltTriple rinse with soapy water.Wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
DEA saltTriple rinse with soapy water.Wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
DMA saltTriple rinse with soapy water.Wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
IPA saltTriple rinse with soapy water.Wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
TIPA saltTriple rinse with soapy water.Wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
IPE esterRinse with kerosene then triple rinse with soapy water.Rinse with kerosene then wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
BEE esterRinse with kerosene then triple rinse with soapy water.Rinse with kerosene then wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
EHE esterRinse with kerosene then triple rinse with soapy water.Rinse with kerosene then wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
Ethyl esterRinse with kerosene then triple rinse with soapy water.Rinse with kerosene then wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.
Butyl esterRinse with kerosene then triple rinse with soapy water.Rinse with kerosene then wash out with 1% ammonia or boom cleaner and triple rinse with soapy water.


14 HERBICIDE RESISTANCE:

The formulation is only expected to have an indirect effect on the development of resistance due to some formulations being more efficacious on some plants than others.

15 REPLANTING INTERVALS:

ChemicalCrop replanting interval
2,4-D acidGrasses - days to weeks
Broad leaves - weeks
2,4-D Na saltGrasses - days to weeks
Broad leaves - weeks
DEA saltGrasses - days to weeks
Broad leaves - weeks
DMA saltGrasses - 3 days to weeks
Broad leaves - weeks
IPA saltGrasses - days to weeks
Broad leaves - weeks
TIPA saltGrasses - days to weeks
Broad leaves - weeks
IPE esterGrasses - days
Broad leaves - days to weeks
BEE esterGrasses - days
Broad leaves - days to weeks
EHE esterGrasses - days
Broad leaves - days to weeks
Ethyl esterGrasses - a day or two.
Broad leaves - a few days.
Butyl esterGrasses - a day or two.
Broad leaves - a few days

NB. Labels generally have longer replanting intervals for the ester formulations than the amines but this is not supported by trial data (e.g. see EPA (2005))

16 WITHHOLDING PERIODS:

TypeCropTime
HarvestAllNot required
GrazingAllgenerally 7 days

17 RE-ENTRY PERIOD:

Wear protective clothing if working in crops before the spray has dried.

18 PROTECTIVE CLOTHING:

Face shield, cotton overalls, gloves, and boots.

19 SOIL:

Soil type has little direct effect.

See 2,4-D Mode of action and properties for more info.

20-26 2,4-D Mode of action and properties

27-35 2,4-D Fate, Properties & Regulations