Dicamba 500

Dicamba 500

1 Trade name	Manufacturer	Form
CHEMAG DICAMBA 500 SELECTIVE HERBICIDE	IMTRADE AUSTRALIA PTY LTD	AC
CONQUEST CAMQUESTA 500 SELECTIVE HERBICIDE	CONQUEST AGROCHEMICALS PTY LTD	AC
COUNTRY DICAMBA 500 SELECTIVE HERBICIDE	ACCENSI PTY LTD	AC
FARMOZ CUTLASS 500 SELECTIVE HERBICIDE	FARMOZ PTY LIMITED	AC
GENFARM DICAMBA 500 SELECTIVE HERBICIDE	GENFARM CROP PROTECTION PTY LTD	AC
KAMBA 500 SELECTIVE HERBICIDE	NUFARM AUSTRALIA LIMITED	AC
KENSO AGCARE DICAMBA 500 SELECTIVE HERBICIDE	KENSO CORPORATION (M) SDN BHD	AC
TRADELANDS DICAMBA 500 SELECTIVE HERBICIDE	TRADELANDS PTY LTD	AC

2 PRICE:

$32.56

3 ACTIVE INGREDIENTS: Dicamba 500 g/L

4 CHEMICAL GROUP: I. Benzoic acid.

5 RELATED HERBICIDES:

Hormone herbicides.

6 GENERAL DESCRIPTION:

A selective, post emergence, foliar absorbed, translocated herbicide for control of broad-leaved weeds in grass pastures and crops.

7 APPLICATION METHODS AND TIPS:

Best results when applied to young actively growing plants.

For boom applications, 50 L/ha water or more is recommended on the label. Water rates down to 30 L/ha appear to be adequate.

For aerial application, 25 L/ha water or more is recommended on the label.

For high volume applications, apply in 1000-1500 L/ha water and spray plants until just wet.

For basal bark application mix 40 mL dicamba 500 in 10 water and apply to the lower 50 cm of the trunk for trees up to 5 cm diameter.

10 WATER QUALITY:

Hard water - There may be a slight loss of activity due to ionic bonding in very hard water.

Colloids - Some loss of activity as the amount of clay in the water increases. If it is difficult to see a coin on the bottom of a 10 litre bucket full of water then the water should be cleared or an alternate source found.

pH -Acidic water is usually OK. Highly alkaline water may cause loss of efficacy.

11 COMPATIBILITY:

Trace elements.

Zinc sulphate and copper sulphate are antagonistic with dicamba. This is caused by ionic reactions and results in a significant loss of efficacy. Manganese sulphate and calcium carbonate (lime) have lesser effects.

12 EQUIPMENT:

Boom, aerial, high volume and low volume application

14 HERBICIDE RESISTANCE:

18 PROTECTIVE CLOTHING:

19 SOIL:

31 PROPERTIES:

20 MODE OF ACTION:

Hormone. Disrupts plant cell growth.

Uptake and translocation:

Absorbed mainly through leaves with minor absorption through roots. Highly translocated especially into woody rootstocks and rhizomes of plants like Dock, Sorrel and Spiny Emex

Physiological effects:

Residual Life and Breakdown:

21 SELECTIVITY:

Little effect on grasses. Affects many broadleaf species.

Crop tolerance:

Under some environmental conditions dicamba may reduce cereal yields (Wilhelm et al., 1995).

Varietal sensitivities:

Effect on Clover Species:

Effect on Medic Species:

Effect on Lucerne:

Effect on Native Plants:

22 DISEASE AND INSECT EFFECTS:

23 PLANT SYMPTOMS:

Curling and distortion of new growth about 1 week to one month after spraying.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Details:

Poison schedule - S

Mammalian toxicity -

Acute oral LD50 - mg/kg (rats), [For comparison table salt is 3000 mg/kg]

Acute dermal LD50 - > mg/kg (rabbit).

Skin - Not irritating.

Eye - Not irritating.

Vapour inhalation - LC50 - > mg/L air (rat).

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

Not carcinogenic, teratogenic or mutagenic test animals (i.e. does not cause cancer). At normal exposure levels there were no reproductive effects in mice. At 10-20 mg/kg/day there were reduced foetal weights, toxic effects on mothers, and increased loss of foetuses in mice.

Acceptable Daily Intake (ADI) -

Exposure to high levels over long periods causes changes in the liver and reduced body weights in rats.

Excreted rapidly in the urine with 1-4% in faeces. 90-99% is excreted intact in urine.

Does not bioaccumulate.

Other Species -

Birds - Practically non toxicity. LD50 - 2009 mg/kg (Mallard Duck) >10,000 mg/kg (Bobwhite Quail)

Fish - Low toxicity LC50 >35 mg/L.

Invertebrates - Low toxicity. LC50 (96hr) >100 mg/L

Bees - Not toxicity.

25 TOXICITY SYMPTOMS:

Loss of appetite (anorexia), vomiting, muscle weakness, slowed heart rate, shortness of breath, excitement or depression, incontinence, cyanosis (blueness of gums and skin), exhaustion following repeated muscle spasms.

Inhalation may cause irritation of the lining of the lungs and nasal passages and loss of voice.

26 FIRST AID:

If SWALLOWED - Give some water to drink.

If in EYES - Irrigate with plenty of water.

If on SKIN - Rinse with plenty of water, remove contaminated clothing, wash with soap and water.

If INHALED - Remove patient to fresh air.

If symptoms persist, see a doctor.

Advice to doctor - Treat symptomatically.

27 ENVIRONMENTAL FATE:

Half life in soil - <14 days in aerobic conditions. 88 days in anaerobic conditions. Typically 1-4 weeks in field soils. Degraded by micro organisms. Degradation is faster in slightly acidic soils and increase with temperature and moisture up to 50%. Degradation is slower in soils with more than 50% moisture (i.e. waterlogged soils)

Half life in water - Stable in pure water. Microbial breakdown in pond water with a half life of approximately 7 days.

Breaks down slowly in sunlight.

It has an EPA classification for soil mobility that ranges from high.

Ground water contamination. High likelihood of leaching. Low likelihood of surface runoff. Leaches form soil in 3-12 weeks.

Accumulation in milk and tissues - Does not accumulate.

pH stability - Stable.

Photolysis rate - Medium.

Hydrolysis half life - 30 days.

Biodegradation rate - 1-28 days in soil.

Break down in plants - Accumulates in the tips of mature leaves. Disappears form plants by exudation from the roots into the soil, metabolism in the plant or loss from leaf surfaces.

28 REGISTERED CROPS: (Button)

29 REGISTERED WEEDS: (Button)

30 REGULATION AND LEGAL:

UN number - NA

Dangerous goods class - Not a dangerous good.

Hazchem code -

Proper shipping name -

Packaging group -

EPG -

CAS number - 2300-65-5

31 PROPERTIES:

Water solubility at 25 C. - 61,000 mg/L to completely soluble. High.

Oil solubility -

Octanol:Water ratio at 25 C LogPow. - at pH 5;

Soil organic carbon absorption coefficient (Koc) - 2. Weak.

Vapour Pressure at 25 C. - 1.3 x 10^-5 mm Hg. Non volatile.

Dissociation constant - pKa

Melting point - 5 C.

Boiling point - 108 C.

Molecular weight -

Colour - Amber liquid

Odour - Mild amine.

Bulk density -

Specific gravity - 1.185

pH -

Flammability - Not flammable. May emit toxic fumes if burnt.

Unlikely to react or decompose.

Not compatible with strong acids, strong bases or strong oxidising agents.

33 REFERENCES:

MSDS - Genfarm Dicamba 500 August 2005.

Wilhelm, N., Ramsey, W and Neate, S. (1995) Australian Grain. Western Focus. October-November. vii.

DIC50_59210-1204.pdf

2. Concentration of Active Constituent : Dicamba 500 g/L

3. Formulation : Water soluble clear to opaque brown liquid.

4. Poison Schedule : 5

8.	Dangerous Goods Class : Not classed as a dangerous good.
9.	Shelf Life : 24 + months.
10.	Mixtures Compatibility :

2,4-D Flowable Igran (terbutryn)

Ally (metsulfuron-methyl) Glean (chlorsulfuron)

atrazine glyphosate

Brodal (diflufenican) linuron (eg Afalon)

Brominil (bromoxynil) MCPA and MCPB

diuron Spray.Seed (paraquat/diquat)

Do NOT mix with :- Grass herbicides- Fusilade (fluazifop-P)

Hoegrass/Nugrass (diclofop-methyl)

Achieve (tralkoxydim)

Puma (fenoxaprop-ethyl)

11.	Registered Crop(s) : Wheat, Barley, Oats, Triticale, Commercial Cereal Rye, Grain Sorghum, Maize.
12.	Effect of Soil Texture on Herbicide : Nil.
13.	Effect of Soil pH on Herbicide : Nil.
14.	Effect of Soil Organic Matter on Herbicide : Nil up to 5 %.
15.	Mode of Action : Foliage translocation, some root absorption. Post-emergent.
16.	Application Timing : CROP - from 3 leaf to early tillering and before jointing occurs. WEED - 2-4 leaf or young rosette stage.
17.	Rate Variations : 400 to 700 mL cereals. 800 mL to 1.4 L grain sorghum and maize.
18.	Rates Selection : Lower rate smaller weeds, 2 - 4 leaf. Higher rate larger weeds, 4 - 6 leaf.
19.	Crop Damage (Crop Tolerance) : Do NOT spray outside crop growth stage. Growth stages definition :- Zadok's scale.

Wheat, Oats, Barley - Z 14 400 mL

Triticale, Rye - Z 15, 21 700 mL

20.	Effect on Crop : A temporary wilting may be evident in crops after application.
21.	Effect on Legume Species : Most legumes are sensitive. Harmful, do not apply to crops or pastures undersown with clovers, medics, or lucerne.
22.	Soil Moisture at Application :

DRY - Weed control may decline.

MOIST - Optimum performance and safety.

WATERLOGGED - May impair crop safety, and reduce weed control.

23.	Frost Effects : Not known.
24.	Frost Free Days Required After Application : Nil.
25.	Effect of Application Water Quality on Herbicide :

Saline Water - Unknown.

Soil Colloids - Nil.

26.	Recommended Water Volume : Minimum 50 L/ha boom, minimum 25 L/ha aircraft.
27.	Nozzle Type : Flat fan.
28.	Recommended Nozzle Pressure : 200 kPa (28.6 psi).
29.	Recommended Filter Size :
30.	Recommended Wetter : None.
31.	Other Additives : None registered.
32.	Rain Fastness : At least 4 hours.
33.	Time Interval Before Effect is Noticed : Up to 5 days.
34.	Plant Symptoms : Auxin like growth effect (cell elongation).
35.	Effect of Herbicide/Disease Interaction on Crop : No observed effects.
36.	Withholding Period : 7 days.
37.	Plant-Back Period : (days) Crop
Rate/ha	W	B	O	T	R	FP	CP	L	C/M
500 mL	1	1	1	1	1	1	7	7	7
700 mL	7	7	7	7	10	14	21	14	14
1.4 L		14	14	14	14	14	21	28	21	21

W-wheat, B-barley, O-oats, T-triticale, R-rapeseed, FP-field peas, CP-chickpeas, L-lucerne, C/M-clover and medics

38. Spray Tank Clean-Up : Rinse thoroughly with water. Use ammonia OR activated carbon to avoid damage to susceptible crops, eg field peas.

39. Other Comments : Do not spray outside recommended growth stages as crop damage may result. Foliar and soil applications control phenoxy tolerant annual and perennial weeds.

Do not apply this product on or near desirable trees or plants or in locations where the chemical may be washed or moved in contact with their roots.

Numbered data from "Crop Herbicide Information"

courtesy of A.J. Chambers, Vic. Dept of Food & Agric.

Acknowledgments:

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