Dimethenamid

1 Trade nameManufacturerForm
FRONTIER-P HERBICIDEBASF AUSTRALIA LTD.EMULSIFIABLE CONCENTRATE
OUTLOOK HERBICIDEBASF AUSTRALIA LTD.EMULSIFIABLE CONCENTRATE

2 PRICE:

$96/L

3 ACTIVE INGREDIENTS: Dimethenamid-P 720 g/L

Emulsion concentrate contains solvent naphtha and polymer amine phosphate.

4 CHEMICAL GROUP:L

Amide or chloroacetamide group.

5 RELATED HERBICIDES:

DevrinolNapropamide 500g/kg
DimethenamidDimethenamid-P 720 g/L
DualMetolachlor 720g/L
Dual GoldS-Metolachlor 960g/L
MetazachlorMetazachlor 500g/L
PyroxasulfonePyroxasulfone 850g/kg
Ramrod FlowablePropachlor 480g/L

6 GENERAL DESCRIPTION:

A selective, pre emergence herbicide for control of some grasses and broadleaved weeds used mainly beans, maize, poppies and pumpkins.

Developed from propachlor in the 60's, to alachlor in the 70's, to metolachlor in the 80's to dimethenamid in the 90's

7 APPLICATION METHODS AND TIPS:

Best results when applied to moist, weed free soil with a fine tilth and little trash and rain follows a day or two after spraying.

6-13 mm rain is usually required for ideal activation. Incorporation with irrigation should not exceed 25-50 mm.

8 WEATHER:

Rainfast immediately for pre emergent applications. Probably rainfast in 2-4 hours for treatment of small Fumitory seedlings.

Frost effects: None.

Wind: Avoid spraying when wind is toward water bodies or sensitive plants within 20-50 m of sprayed area.

Inversions: Avoid application during low level inversions as excessive drift may occur.

Temperature: Little effect.

Delta T and relative humidity: Avoid application when Delta T is greater than

9 ADJUVANTS:

Wetting agents: Not required.

Spray oils: Not required.

10 WATER QUALITY:

Hard water:

Salty water:

Colloids:

pH:

Tank life: Probably weeks.

11 COMPATIBILITY:

Trace elements.

See HerbiGuide Compatibilities button.

12 EQUIPMENT:

Boom sprays:

Carrier volume: 200-300 L/ha on label. 50-1000 L/ha OK.

Nozzles: Flat fan.

Pressure: 150-400 kPa.

Droplet size: Medium. Not critical.

Aerial application:

Not labelled for aerial application.

Carrier volume: 30 L/ha.

13 SPRAYER DECONTAMINATION:

Clean Up:

Clean soon after spraying to reduce the risk of forming dried deposits that may be difficult to remove.

Remove filters and clean separately. Triple rinse with water or water plus 0.25% wetting agent and run through boom.

Decontamination:

Remove filters and clean separately.

Rinse with water and drain.

Quarter fill the tank with an alkali detergent (eg 500 mL or g of Drive, Dynamo, Omo, or Surf per 100 L water) and circulate for at least 15 minutes then run through boom. Rinse with water. Remove filters and clean separately. Replace them and rinse the whole system with water again.

14 HERBICIDE RESISTANCE:

Tolerant plants are expected to occur and may dominate the weed population after repeated applications.

15 REPLANTING INTERVALS:

CropTime
All crops not on label6 months
Brassica transplants6 months
Capsicum transplants6 months
Carrot12 months
Cotton6 months
Onion6 months
Peanut6 months
Poppy6 months
Potato6 months
Pyrethrum12 months

16 WITHHOLDING PERIODS:

CropTypeTime
Bean; CommonGrazing4 weeks
Bean; CommonHarvestNot required
ChickpeaGrazing15 weeks
ChickpeaHarvestNot required
CornGrazing4 weeks
CornHarvestNot required
KabochaGrazing4 weeks
KabochaHarvestNot required
LupinGrazing15 weeks
LupinHarvestNot required
Pea; FieldGrazing15 weeks
Pea; FieldHarvestNot required
Pea; GreenGrazing4 weeks
Pea; GreenHarvestNot required
PoppyGrazingNot specified
PoppyHarvest100 days
PumpkinGrazing4 weeks
PumpkinHarvestNot required
SweetcornGrazing4 weeks
SweetcornHarvestNot required

17 RE-ENTRY PERIOD:

Wear protective clothing if in contact with the crop before the spray has dried.

18 PROTECTIVE CLOTHING:

Overalls, boots and washable hat. Use a face shield when handling the concentrate.

Use chemical resistant safety gloves (EN 374) also with prolonged, direct contact

(Recommended: Protective index 6, corresponding > 480 minutes of permeation time according to EN 374): E.g. nitrile rubber (0.4 mm), chloroprene rubber (0.5 mm), butyl rubber (0.7 mm) and others.

Sensitive workers should use protective clothing. Repeated exposure may cause allergic disorders.

Harmful if swallowed. Will irritate the eyes and skin.

Avoid contact with eyes and skin.

19 SOIL:

Soil texture:

Injury to green beans, kabocha, green peas, pumpkins, corn and sweet corn may occur at label rates on soils with very low cation exchange capacity (CEC). Soils containing low levels of clay and organic matter normally have a low CEC. Do NOT apply to green beans, kabocha, green peas, pumpkins, corn or sweet corn crops grown on soils with a cation exchange capacity (CEC) of less than 5

meq / 100g (or cmol / kg) OR soils with a clay content of less than 10 % AND organic carbon content of less than 2%.


CEC (meq/100 g or cmol/kg) FRONTIER-P Rate
<5 Do not use FRONTIER-P
5-9 500 to 700 mL/ha
9-14 700 mL to 1.0 L/ha
>14 1.0 L/ha


Soil Texture Clay ContentOrganic Carbon Content 
  <2% >2%
Sand, Loamy Sand, Silt <10% Do not use FRONTIER-P 500 - 700 mL/ha
Loam, Sandy Loam, Silt Loam10-15% 500 - 700 mL/ha 700 mL - 1 L/ha
Sandy Clay Loam, Clay Loam, Silt Clay Loam, Silty Clay, Sandy Clay, Clay>15% 1 L/ha 1 L/ha



Soil pH:

Soil organic matter: See tables above under soil texture.

Soil moisture at application: Best results when the soil is moist to the surface. If applying to dry soil then irrigation or rainfall is required before weed germination for adequate control.

20 MODE OF ACTION:

A group K, amide herbicide. Diverse sites of action.

Uptake and translocation:

Absorbed mainly through the coleoptile as plants emerge after germination.

Physiological effects:

Residual Life and Breakdown:

Medium residual life of weeks to months.

21 SELECTIVITY:

Crop tolerance:

Crop tolerance may vary depending on soil texture and organic matter.

Varietal sensitivities:

Some varieties are sensitive. Test on a small area for new varieties.

Effect on Clover Species:

Damages clover.

Effect on Medic Species:

Damages medics.

Effect on Lucerne:

Damages young lucerne.

Effect on Native Plants:

Variable.

22 DISEASE AND INSECT EFFECTS:

23 PLANT SYMPTOMS:

Susceptible plants normally germinate then die soon after emergence.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Harmful if swallowed. Toxic to fish, bees and aquatic organisms.

Details:

Poison schedule: Not scheduled.

Mammalian toxicity:

Acute oral LD50: 429-1581 mg/kg (rat), [For comparison table salt is 3000 mg/kg]

Acute dermal LD50: >4000 mg/kg (rat).

Skin: Not irritating (active ingredient). Irritating to mucous membranes. Sensitising in Guinea pigs.

Eye: Irritant.

Vapour inhalation: LC50 >5.6 mg/L air 4 hour (rat).

Chronic oral toxicity: NOEL mg/kg for two years.

Not carcinogenic, mutagenic or teratogenic in animal studies (i.e. does not cause cancer or reproductive problems in animal tests).

Acceptable Daily Intake (ADI):

Other Species:

Birds: Slight toxicity. LD50 >1068 mg/kg Bobwhite quail.

Fish: Slight to moderate toxicity LC50 9.94 mg/L (96 hour) Rainbow trout (Oncorhynchus mykiss).

Invertebrates: Slight to moderate toxicity. EC50(48 hr) 12-17.1 mg/L Daphnia magna

Bees: Low toxicity.

Arthropods: toxicity.

Earthworms:

Algae: Very toxic. EC50 (72 h) 0.1327 mg/L Green algae (Scenedesmus subspicatus).

Accumulation:

25 TOXICITY SYMPTOMS:

26 FIRST AID:

If SWALLOWED: Wash out mouth with water. Drink plenty of water. Do NOT give anything by mouth to a semiconscious, unconscious or convulsing patient. Do NOT induce vomiting unless instructed by doctor. See a doctor.

Seek medical advice immediately and show this container or label.

If in EYES: Hold eyelids open and wash eyes with plenty of water for 5 minutes, remove contact lenses if present and wash for a further 10 minutes. See a doctor if symptoms persist.

If on SKIN: Remove contaminated clothing. Wash skin thoroughly with soap and water. If irritation develops, seek medical attention.

If INHALED: Remove patient to fresh air. See a doctor if symptoms persist.

Advice to doctor: Treat symptomatically. No specific antidote.

Contact the Poisons Information Centre on 131126.

27 ENVIRONMENTAL FATE:

Half life in soil: 14-35 days in aerobic conditions. Up to 36-292 days in anaerobic conditions. Field dissipation half life: 6-52 days.

Half life in water: 30 days at pH and C.

It has an EPA classification for soil mobility that ranges from

It has a leaching index of . (for comparison, trifluralin is 0-1 and chlorsulfuron is 25-30). Vertical mobility is limited.

Ground water contamination: Low potential to contaminate ground water with normal use patterns.

Accumulation in milk and tissues:

pH stability:

Photolysis rate: Stable on the soil in sunlight.

Hydrolysis half life: 30 days,

Biodegradation rate: Not readily biodegradable.

Bioconcentration factor (BCF):

Non persistent in plants. Low residues in crops.

28 REGISTERED CROPS:

See HerbiGuide Species Solution tab.

29 REGISTERED WEEDS:

See HerbiGuide Species Solution tab.

30 REGULATION AND LEGAL:

UN number: 3082

CAS numbers: 163515-14-8

OPP Chemical Code:

Hazchem code: 3Z.

NOHSC classification: Hazardous.

IERG Number: 47.

Land transport:

Dangerous goods class (ADG): Dangerous good.

Sea transport:

Proper shipping name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S. (contains DIMETHENAMID-P 64%, SOLVENT NAPHTHA)

International Maritime Dangerous Goods Code (IMDG):

Class: 9.

Packaging group: III

EPG:

Marine pollutant.

Risk phrases:

R22 Harmful if swallowed.

R36 Irritating to eyes.

R43 May cause sensitization by skin contact.

R66 Repeated exposure may cause skin dryness or cracking.

R67 Vapours may cause drowsiness and dizziness.

R50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in

the aquatic environment.

Safety phrases:

S2 Keep out of the reach of children.

S13 Keep away from food, drink and animal feeding stuffs.

S20/21 When using do not eat, drink or smoke.

S24 Avoid contact with skin.

S35 This material and its container must be disposed of in a safe way.

S37 Wear suitable gloves.

S46 If swallowed, seek medical advice immediately and show this container

or label.

S57 Use appropriate container to avoid environmental contamination.

S-phrase(s)

31 PROPERTIES:

Colour: Dark brown.

Odour: Aromatic.

Form: Liquid.

Chemical name: 1(R,S)-2-chloro-N-[(1-methyl-2-methoxy)ethyl]-N-(2,4-dimethylthien-3-yl)-acetamide

Empirical formula: Sulphur based ring structure (thiophene ring molecule)

IUPAC:

CAS: 163515-14-8

Water solubility: Emulsifies in water. 1450 mg/L at C at pH

Oil solubility:

Octanol:Water ratio: LogPow = at 25 C at pH 5. Kd 1.4-3.

Soil organic carbon absorption coefficient (Koc): 105-396.

Vapour Pressure: 2.5 x 10-3 Pa at 25 C. (doesn't evaporate from soils)

Vapour density:

Dissociation constant: pKa

Melting point: C.

Boiling point: C.

Molecular weight:

Bulk density:

Specific gravity: 1.11-1.14 at 200C.

Viscosity: CPS.

pH: 3.1 at 1% and 200C.

Flammability: Combustible. Vapours may form and ignitable mixture with air.

Flashpoint: ~1050C.

Autoignition: ~4250C.

Corrosivity:

Shelf Life: years. 2 years. Protect from temperatures below -100C or crystallisation may occur. Protect from temperatures above 400C and prolonged exposure to direct sunlight.

(When Stored under Ideal Conditions)

Surface tension: 32 mN/m

Dynamic viscosity: ~43.6 mPa/s at 200C.

Kinematic viscosity: ~14.7 mm2/s.

Stability: No decomposition or hazardous reactions under normal conditions.

32 SPILLS:

Extinguish possible sources of ignition.

Absorb spill with earth, sand, clay or absorbent material such as vermiculite. Wear breathing apparatus in confined areas or a chemical mask while dealing with spill.

Clean floors with detergent. Ventilate area after cleanup.

Prevent spill and wash water from entering waterways and drains.

33 FIRE:

Extinguish with water spray, foam, carbon dioxide or dry agent.

Toxic fumes may be released in fire. Wear breathing apparatus or avoid smoke.

34 COMMENTS:

35 REFERENCES:

Ashton, F.M. and Crafts, A.S. (1981) Mode of Action of Herbicides. (Wiley-Interscience publication).

Kearney, P.C. and Kaufman, D.D. (1976). Herbicides. Chemistry, degradation and mode of action. Vol 1 & 2.

BASF (2007) Frontier P label

BASF (2007) Frontier P MSDS

Acknowledgments:

Collated by HerbiGuide. For more information see www.herbiguide.com.au or phone 08 98444064.