Stomp 330

Stomp 330

Rates quoted in HerbiGuide are for the 330g/L formulations. Multiply rate by 0.725 if using 455g/L formulations such as Stomp Xtra.

1 Trade name	Manufacturer	Form
4FARMERS PENDIMETHALIN 330 HERBICIDE	4 FARMERS PTY LTD	EC
CAMPBELL ARGO 440EC HERBICIDE	COLIN CAMPBELL (CHEMICALS) PTY LTD	EC
CONQUEST CHARGER 330 EC HERBICIDE	CONQUEST CROP PROTECTION PTY LTD	EC
CROP CARE STOMP 440 HERBICIDE	CROP CARE AUSTRALASIA PTY LTD	EC
CROP CARE STOMP XTRA HERBICIDE	CROP CARE AUSTRALASIA PTY LTD	AC
CYCLONE 440EC HERBICIDE	IMTRADE AUSTRALIA PTY LTD	EC
FARMOZ PENDIMETHEX HERBICIDE	FARMOZ PTY LIMITED	EC
FIST 330 HERBICIDE	UNITED PHOSPHORUS LTD.	EC
HALLEY PENDIMETHALIN 330 HERBICIDE	HALLEY INTERNATIONAL ENTERPRISE (AUSTRALIA) PTY LTD	EC
I.PI.CI. IPIMETHALIN 330 HERBICIDE	FINCHIMICA S.P.A.	EC
IMTRADE CYCLONE 330 EC HERBICIDE	IMTRADE AUSTRALIA PTY LTD	EC
KENSO AGCARE PENDI 330 SELECTIVE HERBICIDE	KENSO CORPORATION (M) SDN. BHD.	EC
NUFARM RIFLE 330 HERBICIDE	NUFARM AUSTRALIA LIMITED	EC
NUFARM RIFLE 440 HERBICIDE	NUFARM AUSTRALIA LIMITED	EC
OSPRAY PENDIMETHALIN 330EC HERBICIDE	OSPRAY PTY LTD	EC
PENDANT HERBICIDE	AMGROW PTY LTD	EC
RALLIS PENDIMETHALIN 330 EC HERBICIDE	RALLIS INDIA LIMITED	EC
STOMP 330E HERBICIDE	BASF AUSTRALIA LTD.	EC
STOMP* XTRA HERBICIDE	BASF AUSTRALIA LTD.	AC
TITAN PENDIMETHALIN 330 HERBICIDE	TITAN AG PTY LTD	EC
UNITED FARMERS PENDIMETHALIN 330EC HERBICIDE	RAVENSDOWN FERTILISER CO-OPERATIVE LIMITED	EC

2 PRICE:

$8.66

3 ACTIVE INGREDIENTS: Pendimethalin 330, 440 or 455g/L4 CHEMICAL GROUP: D5 RELATED HERBICIDES:

Chlorthal	Chlorthal 750g/kg
Oryzalin plus trifluralin	Oryzalin 125g/L + Trifluralin 125g/L
Prodiamine	Prodiamine 480g/L
Propyzamide 500	Propyzamide 500g/kg or L
Stomp 330	Pendimethalin 330, 440 or 455g/L
Surflan	Oryzalin 500 g/L
Trifluralin 480	Trifluralin 480-500g/L

6 GENERAL DESCRIPTION:

A pre emergence, selective herbicide for control of grasses and some broad-leaved weeds in cereals and broad-leaved crops.

7 APPLICATION METHODS AND TIPS:

Do not use on areas prone to waterlogging as crop damage may occur.
Use higher rates on heavy or high organic matter soils. Use lower rates on light soils.
Incorporate with weighted harrows followed by a cross working with a combine within 24 hours of application if using low rates. Use higher rates if rain or irrigiation is used to incorporate the herbicide or incorporation is made with a combine when seeding..
Best results on a fine textured, well prepared seed beds, free of clods and crop residues. All crop residues must be incorporated into the soil prior to application. Crop injury may result if pendimethalin is applied to a poorly prepared seed beds. Generally incorporation will increase activity against monocotyledonous (grassy) plants but reduces effectiveness on dicotyledonous (broad-leaved) species because of the relative location of sensitive meristem. Can be applied pre plant with shallow incorporation or pre plant with subsequent incorporation during sowing. Incorporation can be done up to 4 weeks prior to sowing. To avoid phytotoxicity, ensure seeds are sown below the treated zone.
Pendithalin does not control perennial or well established weeds.
More crop damage may occur where cereal seed dressings that reduce coleoptile length have been used.

8 WEATHER:

Rainfast immediately.
Frost effects: Frost before or during application has little effect
Frost after application with cold wet conditions may result in increased crop injury because the crop coleoptile remains in the herbicide treated band for a longer period.
Wind:
Inversions: Drift from inversion condtions rarely has significant consequences.
Temperature:
Delta T and relative humidity: Avoid application when Delta T is greater than
Soil moisture at application: Best results if soil is moist. Dry conditions following application are likely to result in reduced weed control.

9 ADJUVANTS:

Wetting agents: None required.
Spray oils: None required.

10 WATER QUALITY:

Hard water: Little effect unless very hard water causes formulation to separate in the tank. Do a jar test if in doubt.
Salty water: Little effect unless very salty water causes formulation to separate in the tank. Do a jar test if in doubt.
Colloids: Little effect.
pH: Little effect.
Tank life: Several weeks.

11 COMPATIBILITY:

Not normally compatible with Flexi-N as EC formulations tend to separate in the tank. Compatibility may be improved by diluting Flexi-N with water and ensuring good and continuous agitation.
Trace elements.
See HerbiGuide Compatibilities button.
Do NOT use Stomp mixed with flowable atrazine on heavy clay soils.
Also compatible with Cotoran (fluometuron).

12 EQUIPMENT:

Boom sprays:

Carrier volume: 50-250 L/ha. Not critical.
Nozzles: Flat fan to deliver 50-350 L/ha. Not critical.
Filters: 50-100 mesh. Not crtical.
Pressure: 150-400 kPa.
Droplet size: 180-300 micron. Not critical.

Aerial application:

Carrier volume: 25-60 L/ha. Not critical.
Droplet size: 180-300 micron. Not critical.

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 twice with water.

14 HERBICIDE RESISTANCE:

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

15 REPLANTING INTERVALS:

Crop	Time
Beans; French	2 months.
Beetroot (Redbeet)	12 months.
Brassicas; transplanted	2 months.
Broccoli	5 months.
Brussel sprouts	5 months.
Cabbage	5 months.
Capsicums; Transplanted	2 months.
Carrots	2 months.
Cauliflower	5 months.
Celery	2 months.
Cucumbers	5 months.
Leeks	5 months.
Lettuce	5 months.
Lettuce; transplanted	2 months.
Melons	5 months.
Millet	12 months
Onions	5 months.
Parsley	2 months.
Parsnips	2 months.
Peas	2 months.
Poppy	12 months.
Potatoes	2 months.
Pumpkins	5 months.
Radish	5 months.
Silverbeet	12 months.
Sorghum	12 months
Spinach	12 months.
Squash	5 months.
Sweet Corn	5 months.
Tomatoes; Transplanted	2 months.
Turnips	5 months.
Other crops	Not usually required providing crop is planted below the treated band.

16 WITHHOLDING PERIODS:

Crop	Type	Time
All	Grazing	Not required when used as directed.
All	Harvest	Not required when used as directed.

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 gloves and face shield when handling the concentrate. Don't inhale the spray mist.

19 SOIL:

Soil texture: The finer the soil texture is, the heavier the rate of Stomp application must be.
Soil pH: Little effect.
Soil organic matter: Pendimethalin activity could be decreased on soils with more than 6% organic matter. Do not use Stomp on peat or muck soil.
Stubble cover greater than 40% will result in a decrease in weed control.
Soil Moisture at Application: Pendimethalin efficacy is decreased under dry or waterlogged conditions. Best results on moist soil with light rains within a few days of application.

20 MODE OF ACTION:

Pre-emergent. Inhibits seedling development and has little effect on established plants.

Uptake and translocation:

Root absorbed and absorbed by the emerging shoot.

Physiological effects:

Inhibits microtubule assembly.

Residual Life and Breakdown:

Half life is around 70 days in normal field situations.

21 SELECTIVITY:

Crop tolerance:

Crop damage may occur if waterlogging follows application especially for cereals.
Vetch appears to be sensitive to pre em applications¹³⁰³.

Varietal sensitivities:

Effect on Clover Species:

Liitle effect.

Effect on Medic Species:

Little effect.

Effect on Lucerne:

Little effect.

Effect on Native Plants:

Little effect on established natives and Fabaceae species.

22 DISEASE AND INSECT EFFECTS:

Occasionally crop damage may be worse where root diseases are present.

23 PLANT SYMPTOMS:

Plants may emerge then die back within 14-28 days after application.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Low toxicity to mammals, birds and bees. Toxic to fish.
Harmful if swallowed. May irritate eyes, throat and skin.

Details:

Poison schedule: S5.
Mammalian toxicity: Low.
Acute oral LD50: >5000 mg/kg (rat) for pendimethalin. [For comparison table salt is 3000 mg/kg] The concentrate is of low toxicity if swallowed.
Acute dermal LD50: >2000 mg/kg (rat) for pendimetalin.
Skin: Not irritating. Prolonged repeated contact may cause sensitization. The concentrate is not considered a serious toxic hazard.
Prolonged contact with the concentrate can cause defatting of the skin and may
result in dermatitis.
Eye: Irritating. The concentrate may cause irritation after short contact with the eyes, but permanent damage is not anticipated.
Vapour inhalation: LC50 >320 mg/L air (rat). If aspirated into the lung, e.g. from vomiting, the presence of solvent may result in chemical pneumonitis or other lung damage.
Chronic oral toxicity: NOEL mg/kg for two years. Chronic Effects Based on available data, repeated exposures are not anticipated to cause additional significant adverse effects.
Not mutagenic or teratogenic in animal studies (i.e. does not cause or reproductive problems in animal tests).
Carcinogenicity: A marked depression in body weight and a statistically significant increase in benign thyroid tumors (follicular adenomas) were observed at the highest dose level (5000ppm) in a lifetime (24 month) rat study, not considered to be relevant to humans.
NOEL: 12 mg/kg/day.
Acceptable Daily Intake (ADI): 0.1 mg/kg/day.

Other Species:

Dangerous to fish and other aquatic life.
Birds: Low toxicity. LC50 (8day) = 4187 mg/kg (bobwhite quail).
LD50 = 10388 mg/kg (mallard duck).
Fish: Toxic. LC50 (96 hour) > 0.14 mg/L (Rainbow trout), 0.2 mg/L (bluegill sunfish), 0.42 mg/L (channel catfish).
Invertebrates: toxicity.
Bees: Not toxic to bees. LD50 >100 ìg/bee.
Arthropods: toxicity.
Earthworms:
Algae:
Accumulation:

25 TOXICITY SYMPTOMS:

Volatile solvents may irritate eyes and throat and cause dizziness and headache when handling the concentrate.

26 FIRST AID:

If SWALLOWED: Do NOT induce vomiting. Give a glass of water or milk to sip. Do NOT give anything by mouth to a semiconscious or unconscious patient.
If in EYES: Irrigate with plenty of water for 5 minutes. Remove contact lenses if present. Irrigate for at least another 10 minutes.
If on SKIN: Rinse with plenty of water, remove contaminated clothing, wash with soap and water.
If INHALED: Remove patient to fresh air. Apply artifical respiration if necessary.
Advice to doctor: Treat symptomatically. If vomiting occurs, solvent present may cause pulmonary pneumonitis.
Contact the Poisons Information Centre on 131126.

27 ENVIRONMENTAL FATE:

Half life in soil - 40 days in anaerobic conditions, 1320 days in aerobic conditions. 70 days at 20 degrees and 50% WHC in Mohlin soil.
Half life in water - days at pH5 and 35 C.
It has an EPA classification for soil mobility that ranges from
Ground water contamination. It has a leaching index of 0-1. (for comparison, trifluralin is 0-1 and chlorsulfuron is 25-30). Low likelihood of leaching. High likelihood of surface runoff.
Accumulation in milk and tissues.
pH stability - Stable.
Photolysis rate - <21 days. Medium.
Hydrolysis half life - 28 days.
Biodegradation rate - Slow unless under anaerobic conditions.

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: Pnedimethalin 40487-42-1. Hydrocarbon liquid 64742-94-5.
OPP Chemical Code:
Hazchem code:
NOHSC classification: Hazardous substance.
Land transport:
Dangerous goods class (ADG): Non-dangerous good.
Sea transport:
Proper shipping name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S. (contains Pendimethalin)
International Maritime Dangerous Goods Code (IMDG): marine pollutant for sea transport.
Class: 9.
Packaging group: III.
EPG:
Risk phrases:
R36 Irritating to eyes.
R43 May cause sensitization by skin contact.
R65 Harmful: may cause lung damage if swallowed.
R66 Repeated exposure may cause skin dryness and cracking.
Safety phrases:
S13 Keep away from food, drink and animal feeding stuffs.
S2 Keep out of reach of children.
S26 In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection.
S46 If swallowed, seek medical advice immediately and show this container or
label.

31 PROPERTIES:

Colour: Balck clear liquid with a yellow-orange tinge.
Odour: Solvent odour.
Form: Liquid.
Chemical name: Pendimethalin.
Empirical formula:
IUPAC:
CAS: 40487-42-1.
Water solubility: Of active ingredient: Low. 0.27-0.33 mg/L at pH 7. 0.54 mg/L ar pH4.
Product emulsifies in water forming a yellow milky emulsion.
Oil solubility:
Octanol:Water ratio at 25 C LogPow: 5.2 at pH 7;
Soil organic carbon absorption coefficient (Koc): 5000 mL/g. Strong.
Vapour Pressure: 3 x 10^-5 mm HG at 25 C. Low. 4 mPa or 1.94 mPa at 25⁰C.
Vapour density:
Dissociation constant: pKa
Melting point: Some crystallization between 0 to -7⁰C.
Boiling point: 183-210⁰C for solvent.
Molecular weight:
Bulk density:
Specific gravity: 1.075.
pH:
Flammability: Combustible liquid C1.
Flashpoint: >66⁰C.
Autoignition: C.
Pendimethalin has exothermic decomposition around 200⁰C.
May react violently with strong oxidizing agents.
Corrosivity:
Shelf Life: at least 2 years.
(When Stored under Ideal Conditions)
Stains (yellows) materials that it contacts.

32 SPILLS:

Extinguish possible sources of ignition.
Absorb spill with earth, sand, clay or absorbent material such as vermiculite.
Ventilate area after cleanup.

33 FIRE:

Extinguish with water fog, foam, carbon dioxide or dry agent.
Toxic fumes may be released in fire. Wear breathing apparatus or avoid smoke.
Pendimethalin has exothermic decomposition around 200⁰C.
May react violently with strong oxidizing agents.
No hazardous polymerization.

34 COMMENTS:

Extended storage below 5⁰C may result in crystals forming in the bottom of the container. If this occurs, store the container on its side at room temperature and roll occasionally until crystals dissolve.

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.

CropCare(2007) Stomp 440 MSDS.

CropCare(2008) Stomp 440 Label.

Acknowledgments:

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