Spinnaker

Rates quoted in HerbiGuide are for the 700 g/kg granular products. Multiply rate by 2.91 if using the 240 g/L liquid products.
1 Trade nameManufacturerForm
4FARMERS IMAZETHAPYR 700 WG HERBICIDE4 FARMERS PTY LTDWG
AW IMPALE HERBICIDEAGRI WEST PTY LIMITEDWG
CHEMAG AMAZE 700 WG HERBICIDEIMTRADE AUSTRALIA PTY LTDWG
FARMOZ VEZIR HERBICIDEFARMOZ PTY LIMITEDSL
GENFARM IMAZETHAPYR 700 WG HERBICIDELANDMARK OPERATIONS LIMITEDWG
IMTRADE AMAZE 700 WG HERBICIDEIMTRADE AUSTRALIA PTY LTDWG
NUFARM SPINNAKER 700 WDG HERBICIDENUFARM AUSTRALIA LIMITEDWG
OSPRAY JANITOR 700 WG HERBICIDEOSPRAY PTY LTDWG
WHITESTAR IMAZETHAPYR 700WG HERBICIDEAGRICULTURAL PRODUCT SERVICES PTY LTDWG

2 PRICE:

$27.22/L

3 ACTIVE INGREDIENTS: Imazethapyr 700g/kg or 240g/L

IMAZETHAPYR 700 g/kg as a water dispersible granule
OR IMAZETHAPYR 240 g/L as an aqueous concentrate.

4 CHEMICAL GROUP: B

Imidazolinone. Inhibitor of acetolactate synthase. ALS inhibitor.

5 RELATED HERBICIDES:

BroadstrikeFlumetsulam 800g/kg
ChlorsulfuronChlorsulfuron 750g/kg
CrusaderPyroxulam 30g/L
EclipseMetosulam 100g/L
EclipseMetosulam 714g/kg
EthoxysulfuronEthoxysulfuron 600g/kg
ExpressTribenuron methyl 750g/kg
FlameImazapic 240g/L
Harmony MMetsulfuron 68g/kg + thifensulfuron 682g/kg
ImazapyrImazapyr 250g/L or 750g/kg
IntervixImazamox 33g/L + imazapyr 15g/L
Iodosulfuron 100Iodosulfuron 100g/kg
Iodosulfuron 50Iodosulfuron 50g/kg + mefenpyr
LightningImazapyr 175g/L + imazethapyr 525g/L
Logran 750Triasulfuron 750g/kg
LondaxBensulfuron 600g/kg
Mesosulfuron 30Mesosulfuron 30g/L
Metsulfuron-methylMetsulfuron 600g/kg
MonzaSulfosulfuron 750g/kg
MusterEthametsulfuron methyl 750g/kg
OnDutyImazapic 525 + Imazapyr 175g/L
Raptor WG 700Imazamox 700 g/kg
SempraHalosulfuron 750g/kg
SpinnakerImazethapyr 700g/kg or 240g/L
SulfometuronSulfometuron 750g/kg
TitusRimsulfuron 250g/kg
TrifloxysulfuronTrifloxysulfuron 750g/kg

6 GENERAL DESCRIPTION:

It is a broad spectrum, selective, residual herbicide mainly used in leguminous crops and pastures for both pre and post emergence applications. It is absorbed by the roots and leaves and translocated to inhibit the ALS synthase enzyme that is involved in the production of a number of essential amino acids.

7 APPLICATION METHODS AND TIPS:

Best results when applied to moist soil and rain follows a day or two later.

8 WEATHER:

Rainfast in 1 hour for post emergment applications. Pre emergent applications are rainfast immediately and can be applied in the rain.
Frost effects: Severe frosting or prolonged cold conditions may reduce the crops ability to metabolise Spinnaker, and transient crop effects may result.
Wind:
Inversions: Avoid application during low level inversions as excessive drift may occur.
Temperature:
Delta T and relative humidity: Avoid application when Delta T is greater than

9 ADJUVANTS:

Wetting agents: Use 200 mL BS 1000 or equivalent non ionic wetter for post emergent applications.
Spray oils: Not necessary but can be used if required by companion pesticides.
Ammonium sulphate at 2 kg per 100 L spray mix often improves efficacy of post emergent applications especially on summer weeds.

10 WATER QUALITY:

Hard water: Tolerant to normal hard water.
Colloids:
pH:
Tank life:

11 COMPATIBILITY:

Cyanazine, diflufenican, diquat, diuron, glyphosate, metribuzin, Spray Seed, pendimethalin, simazine, trifluralin, dimethoate, omethoate, endosulfan. Don't tank mix with post emergent grass selective herbicides. Do not apply these herbicides following use of spinnaker until grasses have resumed growing.
Trace elements.

12 EQUIPMENT:

Boom sprays:

Carrier volume: 50-100 L/ha water.
Nozzles: 1100 Flat fan.
Pressure: 150-400 kPa.
Droplet size: 200-250 micron VMD.
Filter Size : 100 mesh.

Aerial application:

Carrier volume: At least 20 L/ha air.
Nozzles: Use nozzles that deliver a droplet size of of 230-280 microns VMD.

13 SPRAYER DECONTAMINATION:

Clean up:
Clean soon after spraying to reduce the risk of forming dried deposits that may be difficult to remove.
Remove nozzles and filters and clean separately. Triple rinse with soapy water (eg 500 mL or g of Drive, Dynamo, Omo or Surf per 100 L water) or water plus 0.25% wetting agent and run through boom. This procedure is sufficient for spraying in other cereals or non selective applications.
Decontamination:
Remove the nozzles and filters and clean separately and allow to soak in a mixture of 500 mL chlorine bleach (4%) per 10 L water for at least 30 minutes.
Rinse sprayer with soapy water (eg 500 mL or g of Drive, Dynamo, Omo or Surf per 100 L water) or water plus 0.25% wetting agent and run through boom. Drain tank and flush with clean water for a minimum of 10 minutes to remove all traces of liquid fertilisers or adjuvants containing ammonia, such as ammonium sulphate or ammonium nitrate, before adding chlorine bleach, because bleach and ammonia will react to release a toxic gas.
Fill tank with clean water and add 300 mL household chlorine (4%) bleach per 100 L water, flush through hoses and boom then stand for 15 minutes with agitation engaged, repeat. Rinse tank, hoses and boom thoroughly with clean water to remove traces of bleach.
Rinse filters and nozzles in water and replace.

14 HERBICIDE RESISTANCE:

Repeated applications are likely to lead to resistance in a number of grass and broadleaf species. This product will not control group B tolerant weeds.

15 REPLANTING INTERVALS:

CropTime
All other crops34 months for winter crop applications, 27 months for summer crop applications
Barley*10 months
Beans; Faba0 months.
Canola34 months
Lucerne10 months
Lupins,10 months
Oats22 months
Pasture legumes10 months
Peas: Field0 months.
Safflower22 months
Triticale*10 months
Wheat*10 months
Maize; IT tolerant0 months
Wheat; IT tolerant0 months
Canola; IT tolerant0 months
Chickpea0 months
Vetch10 months
Maize10 months
Cotton22 months
Sorghum22 months
Sunflower22 months
*For Barley Triticale and Wheat in the following winter season - Don't apply pre emergence Spinnaker later than the end of June or post emergence Spinnaker later than the end of July. Do not use where rainfall from spraying to sowing is expected to be less than 300 mm. Do not use on soils of pH 5.5 or less where rainfall from spraying to sowing is less than 400 mm

16 WITHHOLDING PERIODS:

CropTypeTime
AllGrazing14 days
AllHarvestNot 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 gloves and face shield when handling the concentrate.

19 SOIL:

Acid soils tend to have greater absorption of imazethapyr which increases it persistence in the soil. On high pH soils imazethapyr has greater initial soil activity and lower pre emergence rates are effective..
As organic matter and clay content increases the proportion of Spinnaker absorbed to the soil increases.
Soil moisture: Moisture content is the most important factor influencing absorption of Spinnaker. As soil begins to dry, the amount of Spinnaker in soil solution will decrease, thereby making it unavailable to the plant for uptake.
In dry soil Spinnaker will be bound to soil particles making it unavailable for plant uptake. Best results in moist soils. Under waterlogged ocnditions plants may become stressed and crop damage may occur.

20 MODE OF ACTION:

It inhibits the acetolactate synthase (ALS) enzyme which inhibits the production of several essential amino acids.

Uptake and translocation:

Absorbed by roots and shoots and translocated throughout the plant.

Physiological effects:

Residual Life and Breakdown:

21 SELECTIVITY:

A number of leguminous crops and pastures are tolerant to imazethapyr. Several crops including Wheat, Canola and Maize have been bred that are tolerant to the herbicide.

Crop tolerance:

Usually has good crop selectivity. Short term crop effects can be seen where environmental or nutritional stress affect the crop. This product may cause slight shortening plant internodes but plants soon recover and yield is unaffected. This effect may be more pronounced where it is used post emergence or under poor growth conditions.
Chickpeas may show transient yellowing or reddening.

Varietal sensitivities:

Do not use pre emergence on Collegian, Prussian Blue or Cressy field peas. Do not use this product post emergence on field peas other than Alma, Dun, Dundale, Early Dun and Wirrega.
Do not use post emergence on Faba Beans or Mung Beans.
Do Not use pre emergence on soy beans other than Davis, Dragon and Forrest and post emergence on other than Davis and Forrest.

Effect on Clover Species:

Clovers are more tolerant than medics, and post emergent applications are more suitable than pre emergence applications.

Effect on Medic Species:

Tolerance may be marginal on some varieties.

Effect on Lucerne:

Registered for use on seedling lucerne as a post emergence application after the crop has developed to at least the first trifoliate leaf stage.

Effect on Native Plants:

22 DISEASE AND INSECT EFFECTS:

Not recommended if crop is severely diseased.

23 PLANT SYMPTOMS:

Purple and yellow young growth, death of the growing points, stunting.
Depends on weed species and the available soil moisture. May be as soon as 10 days post application for sensitive species. Complete death may take several weeks.
After pre emergence applications, susceptible weeds may emerge, however normal growth stops early in the weeds development. The first sign of activity is purple discolouration or a chlorosis of the youngest leaves, leading to necrotic growing points and stunted growth or death. On several weed species, stunting is the major symptom.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Low toxicity to mammals, birds, fish or bees. Irritating to eyes.

Details:

Poison schedule: S5.
Mammalian toxicity:
Acute oral LD50: >5000 mg/kg (rat), [For comparison table salt is 3000 mg/kg]. Low toxicity.
Acute dermal LD50: >5000 mg/kg (rabbit). Low toxicity.
Skin: Not irritating. Not sensitising. Prolonged contact may cause dermatitis.
Eye: Irritating
Vapour inhalation: LC50 >6.8 mg/L air (rat).
Chronic oral toxicity: NOEL = 276 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): 2.8 mg/kg/day.

Other Species:

Birds: Not toxic. LD50 >2150 mg/kg (quail).
Fish: Low toxicity LC50 = 340 mg/L (96 hour, rainbow trout). LC50 = 420 mg/L (96 hour, bluegill sunfish). LC50 = 240 mg/L (96 hour, channel catfish).
EC50 (48 hour) >1000 mg/L.
Invertebrates: toxicity.
Bees: Not toxic. LD50 > 100 ug/bee.
Arthropods: toxicity.
Earthworms:
Algae:
Accumulation:

25 TOXICITY SYMPTOMS:

26 FIRST AID:

If SWALLOWED: Do NOT induce vomiting. Do NOT give anything by mouth to a semiconscious or unconscious patient. Make every effort to prevent vomit from entering the lungs by careful placement of the patient.
If in EYES: Irrigate with plenty of water for 5 minutes, remove contact lenses if present and irrigate for a further 15 minutes.
If on SKIN: Rinse with plenty of water, remove contaminated clothing, wash with soap and water.
If INHALED: Remove patient to fresh air. Over exposure by inhalation is not likely. Check for other causes if breathing is difficult.
Advice to doctor: Treat symptomatically.
Contact the Poisons Information Centre on 131126.

27 ENVIRONMENTAL FATE:

Half life in 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
Accumulation in milk and tissues.
pH stability:
Photolysis rate:
Hydrolysis half life:
Biodegradation rate:

28 REGISTERED CROPS:

See HerbiGuide Species Solution tab.

29 REGISTERED WEEDS:

See HerbiGuide Species Solution tab.

30 REGULATION AND LEGAL:

UN number:
CAS numbers: 81335-77-5
OPP Chemical Code:
Hazchem code:
NOHSC classification:
Land transport:
Dangerous goods class (ADG): Not a dangerous good.
Sea transport:
Proper shipping name:
International Maritime Dangerous Goods Code (IMDG):
Class:
Packaging group:
EPG:
Risk phrases:
R36 Irritating to eyes.
Safety phrases:
S13 Keep away from food,drink and animal feeding stuffs.
S2 Keep out of reach of children.
S25 Avoid contact with eyes.
S26 In case of contact with eyes, rinse immediately with plenty of water and seek
medical advice.
S46 If swallowed, seek medical advice immediately and show this container or
label.

31 PROPERTIES:

Colour: Green/black liquid or tan to cream granule.
Odour: Faint rubbery odour.
Form: Aqueous solution or water dispersible granule.
Chemical name:
Empirical formula:
IUPAC
CAS: 81335-77-5
Water solubility: Product disperses in water. mg/L at 25 C at pH ;
Oil solubility:
Octanol:Water ratio: LogPow = 1.04 at pH 5; LogPow = 1.49 at pH 7; LogPow = 1.20 at pH 9;
Soil organic carbon absorption coefficient (Koc):
Vapour Pressure: at 25 C.
Vapour density:
Dissociation constant: pKa = 3.9.
Melting point: C.
Boiling point: C.
Molecular weight:
Bulk density: 1.1-1.12.
Specific gravity:
Viscosity: CPS.
pH: 3.46 (2% aqueous solution).
Flammability: Liquid is non flammable. Granules have a danger of dust explosion.
Flashpoint: C.
Autoignition: C.
Corrosivity: Not compatible with aluminium. Do not sore in galvanised or unlined steel containers.
Shelf Life: years. Good.
(When Stored under Ideal Conditions)
Stable under normal conditions.

32 SPILLS:

Extinguish possible sources of ignition. It is possible to get dust explosions.
Absorb lquid spills with earth, sand, clay or absorbent material such as vermiculite.
Sweep up granular spills with a shovel and broom and avoid creating too much dust which may create a dust explosion hazard.
Ventilate area after cleanup.

33 FIRE:

Extinguish with water spray, foam, carbon dioxide or dry agent.
Avoid direct water jets because airborne dusts may create an explosion hazard.
Toxic fumes may be released in fire. Wear breathing apparatus or avoid smoke.
Hazardous polymerization is not possible.

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 (2000). Spinnaker 700WDG MSDS.

Nufarm (2004).Spinnaker 700 WDG label.

Nufarm (2004).Spinnaker 700 WDG MSDS.

Acknowledgments:

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