Dual Gold

Manufacturer
SYNGENTA
Category
Herbicides
Registered until
2024-06-30
Registration number
50477
Active materials
Links

Controls certain annual grasses and broadleaf weeds in certain crops as specified in the Directions for Use

DIRECTIONS FOR USE
Restraints
DO NOT apply to waterlogged soils
DO NOT apply if heavy rains or storms that are likely to cause runoff are forecast within 2 days of application
DO NOT irrigate to the point of runoff for at least 2 days after application

BROCCOLI, BRUSSELS SPROUTS, CABBAGES, CAULIFLOWERS
Weeds Controlled:
Barnyard Grass, Blackberry Nightshade, Chickweed (suppression), Deadnettle, Fat Hen, Love Grass, Pigeon Grass, Pigweed (suppression), Potato Weed, Shepherd's Purse, Stinging Nettle, Summer Grass, Wireweed (suppression)
State: Qld, NSW, Vic, Tas, NT only
Rate: 1.5 to 2 L/ha
Critical comments: Apply immediately after transplanting. Sufficient irrigation to wet the top 3 to 4 cm of soil should be applied within 24 hours. Use rates towards the higher end of the range where Blackberry Nightshade, Chickweed, Fat Hen, Love Grass, Pigeon Grass, Pigweed, Potato Weed and Wireweed are the major problem.
See General Instructions for Warning - Brassica Crops.

Weeds Controlled: Crowsfoot Grass, Fierce Thornapple (suppression), Liverseed Grass, Winter Grass
State: NSW only
Rate: 1.5 to 2 L/ha

Weeds Controlled: Apple of Peru, Awnless Barnyard Grass, Fierce Thornapple (suppression), Liverseed Grass, Yellow Weed, Redroot Amaranth (suppression)
State: Qld only
Rate: 1.5 to 2 L/ha

Weeds Controlled: Annual Ryegrass, Common Cotula, Common Sowthistle (suppression), Crowsfoot Grass, Fiddle Dock, Italian Ryegrass, Liverseed Grass, Nettleleaf Goosefoot (suppression), Twiggy Turnip (suppression), Winter Grass
State: Vic, Tas only
Rate: 1.5 to 2 L/ha

Critical comments: Apply immediately after transplanting. Sufficient irrigation to wet the top 3 to 4 cm of soil should be applied within 24 hours. Use rates towards the higher end of the range where Apple of Peru, Common Sowthistle, Fierce Thornapple, Liverseed Grass, Redroot Amaranth, Twiggy Turnip and Nettleleaf Goosefoot are the major problems.
WARNING: Qld only: Stunting and reduced yield may occur in Broccoli in red soils and light alluvial soils.
See General Instructions for Warning - Brassica Crops.

CANOLA
Weeds Controlled:
 Toad Rush
State: All States
Rate: 0.15 to 0.25 L/ha
Critical comments: Apply at or immediately after planting and before crops and weeds emerge. Apply to moist soil. Use rates toward the higher end of the range where longer residual control is required. See General Instructions for use in Zero-Tillage Systems.

COTTON
Weeds Controlled:
 Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass, Wandering Jew
State: Qld, NSW, WA only
Rate: 1 L/ha
Critical comments: 
Pre-emergent: Apply before, at or immediately after planting and before crops and weeds have germinated using a low volume boom sprayer applying 60 to 120 L mixture/ha.
Rain or irrigation is necessary within 10 days of spraying to thoroughly wet the top 3 to 4 cm of soil. If rain does not occur or irrigation is unavailable, incorporate chemical to a depth of 3 to 4 cm. Use rates towards the higher end of the range on heavy soils or where a heavy grass population is expected.
DO NOT throw untreated soil onto treated areas as this will reduce weed control.
DO NOT use on soils where the sand content exceeds 70%. Use lower rate where the sand content of the soil is within the range 50% to 70%.
See General Instructions for Warning - Cotton.

GREEN BEANS, NAVY BEANS
Weeds Controlled:
 Blackberry Nightshade, Common Sowthistle, Fat Hen, Potato Weed, Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass and suppression of Pigweed
State: Qld, NSW, Vic, SA only
Rate: 1.5 to 2 L/ha

Weeds Controlled: Powell’s Amaranth
State: Tas only
Rate: 2 L/ha

Critical comments: 
Pre-emergent: Apply before, at or immediately after planting and before crops and weeds have germinated.
For sufficient Amaranth control, the DUAL GOLD application should be followed by 1 L/ha Basagran* (2 leaf Amaranth) or 2 L/ha Basagran (4 leaf Amaranth).
Rain or irrigation is necessary within 10 days of spraying to thoroughly wet the top 3 to 4 cm of soil. If rain does not occur or irrigation is unavailable, incorporate chemical to a depth of 3 to 4 cm.
DO NOT throw untreated soil onto treated areas as this will reduce weed control.

MAIZE, SWEET CORN
Weeds Controlled:
 Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass, Wandering Jew
State: All States
Rate: 1 to 2 L/ha

Weeds Controlled: Blackberry Nightshade, Caltrop, Common Thornapple, Mintweed, Needle Burr, Noogoora Burr, Pigweed, Redroot Amaranth, Slim Amarant
State: All States
Rate: 1 to 2 L plus 2.5 L of Flowable Gesaprim (500 g/L)/ha

Critical comments: 
Pre-emergent: Apply before, at or immediately after planting and before crops and weeds have germinated using a low volume boom sprayer applying 60 to 120 L mixture/ha.
Rain or irrigation is necessary within 10 days of spraying to thoroughly wet the top 3 to 4 cm of soil. If rain does not occur or irrigation is unavailable, incorporate chemical to a depth of 3 to 4 cm. Use rates towards the higher end of the range on heavy soils or where a heavy grass population is expected.
DO NOT throw untreated soil onto treated areas as this will reduce weed control.
DO NOT use on soils where the sand content exceeds 70%. Use lower rate where the sand content of the soil is within the range 50% to 70%.

PASTURES Trikkala Sub-Clover, Haifa White Clover, Maral Persian Clover, Paradana Balansa Clover, Redquin Red Clover, Phalaris and Cocksfoot
Weeds Controlled: Toad Rush
State: NSW, Vic, SA, Tas, WA, NT, only
Rate: 200 to 250 mL/ha
Critical comments: Apply at or immediately after planting and before pasture species and weeds emerge. Application should be made to a moist seed bed. Sufficient rain to thoroughly wet the top 3 to 4 cm of soil should occur within 10 days after spraying. Use rates towards the higher end of the range in wet areas or when longer residual control is required. DO NOT use in soils where prolonged waterlogging is anticipated otherwise unacceptable crop retardation will occur.
Avoid damage to pasture species by avoiding overlaps and double spraying in headlands where White, Persian and Balansa Clovers are sown and if the 250 mL rate is being used.

PEANUTS
Weeds Controlled:
 Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass, Wandering Jew
State: Qld, NSW, WA, NT only
Rate: 1 to 2 L/ha
Critical comments: Apply before pre-irrigation where soil crusting is likely. Apply before, at or immediately after planting and before weeds germinate.
Rain or irrigation is necessary within 10 days of spraying to thoroughly wet the top 3 to 4 cm of soil. If rain does not occur or irrigation is unavailable, incorporate chemical to a depth of 3 to 4 cm. DO NOT throw untreated soil onto treated areas as this will reduce weed control. Use rates toward the higher end of the range on heavy soils or where a heavy grass population is expected.

SOYBEANS, SUNFLOWERS
Weeds Controlled:
 Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass, Wandering Jew
State: All States
Rate: 1 to 2 L/ha
Critical comments: Apply before pre-irrigation where soil crusting is likely. Apply before, at or immediately after planting and before weeds germinate.
Rain or irrigation is necessary within 10 days of spraying to thoroughly wet the top 3 to 4 cm of soil. If rain does not occur or irrigation is unavailable, incorporate chemical to a depth of 3 to 4 cm. DO NOT throw untreated soil onto treated areas as this will reduce weed control. Use rates toward the higher end of the range on heavy soils or where a heavy grass population is expected.

SORGHUM treated with Concep II® Sorghum Seed Safener
Weeds Controlled:
 Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass, Wandering Jew
State: Qld, NSW, WA, NT only
Rate: 1 to 2 L/ha

Weeds Controlled: Blackberry Nightshade, Caltrop, Common Thornapple, Mintweed, Needle Burr, Noogoora Burr, Pigweed, Redroot Amaranth, Slim Amaranth
State: Qld, NSW, WA, NT only
Rate: 1 to 2 L plus 2.5 L of Flowable Gesaprim (500 g/L)/ha

Critical comments: 
Pre-emergent: Apply before, at or immediately after planting and before crops and weeds have germinated using a low volume boom sprayer applying 60 to 120 L mixture/ha. DO NOT apply to Sorghum seed not previously treated with Concep II Sorghum Seed Safener. Rain or irrigation is necessary within 10 days of spraying to thoroughly wet the top 3 to 4 cm of soil. If rain does not occur or irrigation is unavailable, incorporate chemical to a depth of 3 to 4 cm. Use rates toward the higher end of the range on heavy soils or where a heavy grass population is expected.
DO NOT throw untreated soil onto treated areas as this will reduce weed control. Use the lower rate on sandy soils.

SUGAR CANE plant and ratoon
Weeds Controlled:
 Awnless Barnyard Grass, Barnyard Grass, Bellvine, Billygoat Weed (Blue Top), Blackberry Nightshade, Caltrop, Common Sowthistle (Milk Thistle), Common Thornapple, Crowsfoot Grass, Green Summer Grass, Guinea Grass, Liverseed Grass, Mexican Clover, Mintweed, Needle Burr, Passionfruit vines, Pigeon Grass, Pigweed, Redroot Amaranth, Square Weed, Star of Bethlehem, Summer Grass, Wild Rose
State: Southern Qld only (Bundaberg South)
Rate: 1.1 to 1.45 L plus 2.7 to 3.6 L Flowable Gesaprim 500 SC or 1.5 to 2 kg of Gesaprim WG 900
State: Northern Qld only (Mackay North)
Rate: 1.45 to 1.8 L plus 3.6 to 4.5 L Flowable Gesaprim 500 SC or 2 to 2.5 kg of Gesaprim WG 900
Critical comments: Apply as a pre- or post emergent application to crop. Apply once per year only. Application should be made to a moist soil before weeds and grasses have germinated. If conditions remain dry for a period of 10 days after spraying, irrigation or a shallow cultivation (2.5 cm) may assist results. DO NOT throw untreated soil onto treated areas as this will reduce weed control. In Southern Queensland, use rates toward the higher end of the range on heavy soils where a high grass population is expected.
In Northern Queensland, application must be made to moist soil and rainfall or irrigation should occur within 24 hours of application. Use rates toward the higher end of the range where high Green Summer Grass population is expected. Where broadleaf weeds and grasses have emerged and are in the 2 to 4 true leaf stage, knockdown herbicides such as Primatol® Z (2 L/ha), a flowable diuron (500 g/L) at 1 L/ha or Gramoxone® W (1 L/ha), applied as a post directed spray, can be added.
Where broadleaf weeds only have emerged and are at the 2 to 4 true leaf stage then a 500 g/L 2,4-D amine at 2 L/ha should be added.
In all cases add a non-ionic surfactant.
Follow all instructions and restrictions on the Gesaprim labels.
DIURON TANK MIXES: Read and follow all label directions including restraints, spray drift restraints, mandatory no-spray zones, critical comments, withholding periods, regional use restrictions and safety directions for the tank mix products.

SWEET POTATOES
Weeds Controlled:
 Black Pigweed, Red Shank, Potato Weed, Barnyard Grass, Crowsfoot Grass, Liverseed Grass, Love Grass, Pigeon Grass, Summer Grass, suppression of Evening Primrose
State: Qld, NSW, Vic, SA, NT only
Rate: 1.5 L/ha
Critical comments: 
Pre-emergent: Apply immediately after transplanting before weeds have germinated. Sufficient irrigation to wet the soil through the weed zone should be applied within 24 hours. Further weed germination may occur following rehilling due to exposure of untreated soil.

TOBACCO transplanted in field
Weeds Controlled: Barnyard Grass, Love Grass, Pigeon Grass, Summer Grass and suppression of Common Thornapple (Datura stramonium) and Nightshades (Solanum sarrachoides and S. gigrum)
State: NSW, Vic only
Rate: 1.5 L/ha
Critical comments: Apply by low volume boom spray prior to transplanting and before weeds and grasses germinate. The seed bed should be fine and free of large clods. Thoroughly incorporate within 7 days of spraying using a rotary hoe or similar equipment set to work to a depth of 7.5 cm. DO NOT use disc cultivating implements. An even coverage of the herbicide is essential.
The herbicide needs to be activated by moisture through to the top 3 to 4 cm of soil at the time of application or within 4 days of incorporation. This can be achieved by applying to moist soil, irrigating soon after incorporation or irrigating immediately after transplanting.
Avoid boom overlaps as double treatment may cause growth suppression. Temporary crop retardation may be observed when soil conditions remain dry after application or where Black Root Rot may occur.

BARLEY, OATS
Weeds Controlled:
 Suppression of Annual Ryegrass
State: NSW, Vic, Tas, SA, WA, ACT only
Rate: 375 to 500 mL/ha
Critical comments: Apply to moist soils immediately after planting and before crop and weeds emerge. Use the lower rate on light soils. Application should be made to a moist seed bed and sufficient rain to thoroughly wet the top 3 to 4 cm of soil should occur within 10 day after spraying.
Damage may occur if crop is sown too shallow (less than 4 cm). Damage can occur on light sandy soil types after heavy rain.
See General Instructions for use in Zero Tillage Systems.

WHEAT, BARLEY, OATS, TRITICALE
Weeds Controlled:
 Toad Rush
State: NSW, Vic, Tas, SA, WA, ACT only
Rate: 150 to 250 mL/ha
Critical comments: Apply at or immediately after planting and before crop and weeds emerge. Application should be made to a moist seed bed and sufficient rain to thoroughly wet the top 3 to 4 cm of soil should occur within 10 days after spraying. Use rates toward the higher end of the range in wet areas or when longer residual control is required or in situations where crop competition is minimal.
When mixed with Logran 750®, apply pre-sowing and incorporate by sowing operation (for wheat only).
See General Instructions for use in Zero Tillage Systems.

NOT TO BE USED FOR ANY PURPOSE, OR IN ANY MANNER, CONTRARY TO THIS LABEL UNLESS AUTHORISED UNDER APPROPRIATE LEGISLATION

WITHHOLDING PERIODS
Canola:
DO NOT GRAZE TREATED FIELDS FOR 10 WEEKS AFTER APPLICATION
Green beans:
DO NOT HARVEST BEANS FOR 8 WEEKS AFTER APPLICATION DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 10 WEEKS AFTER APPLICATION
Pastures:
DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 13 WEEKS AFTER APPLICATION
Sweet Potatoes:
DO NOT HARVEST, GRAZE OR CUT FOR STOCK FOOD FOR 23 WEEKS AFTER APPLICATION
Wheat, Barley, Oats, Triticale:
DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 8 WEEKS AFTER APPLICATION
HARVEST withhold for all other crops:
NOT REQUIRED WHEN USED AS DIRECTED
FORAGE withhold for all other crops (except Sweet Potatoes):
DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 13 WEEKS AFTER APPLICATION

GENERAL INSTRUCTIONS
Uses
The product is a short residual, pre-emergent herbicide for the control of many important annual grasses and broadleaf weeds in the crops nominated. The product does not control the important broadleaf weeds in maize, sweet corn and Concep II treated sorghum but, when mixed with Flowable Gesaprim, control of many important annual weeds and grasses is obtained without the problem of carryover of herbicides affecting succeeding crops. The product acts mainly through shoot (coleoptile) absorption. Its effectiveness depends on the occurrence of rainfall or irrigation to move it down into the top 3 to 4 cm of soil, where it must be present at the time of weed germination.

Application
Ground Application: Apply in a minimum of 60 L/ha of water
DO NOT apply by aircraft

Mixing
Fill the spray tank to one quarter full. Then add DUAL GOLD while adding water to make up the final spray volume. Pour DUAL GOLD into the stream of incoming water. Good agitation at the time DUAL GOLD is added to the tank will ensure good mixing.
When Tank Mixing: wettable powder or water dispersible granule formulations should be added to the tank first, followed by suspension concentrates (flowables), water soluble salts then DUAL GOLD or other emulsifiable concentrate formulations. Maintain thorough agitation during mixing and application. Agitate tank mixes vigorously if allowed to stand. Note: Tank mix spray solution should NOT be left standing in the vat overnight.

Compatibility
DUAL GOLD is compatible with Flowable Cotogard, Flowable Cotoran, Flowable Gesagard®, Flowable Gesaprim, Gesaprim Granules 900 WG, Logran, Basagran*, Spray.Seed and Roundup*.

WARNING - Cotton: DO NOT use when planting into dry soil or soil with marginal moisture. Under dry planting conditions heavy rain or flood irrigation soon after planting, together with below average soil temperatures, can result in crop injury due to the inability of the germinating seedling to metabolise above normal amounts of the herbicide that may accumulate in the root zone as a result of accelerated capillary movement. DUAL GOLD should not be used in situations where these conditions are likely to occur.

WARNING - Brassica Crops: Crop retardation may occur where DUAL GOLD is used on soils that have a low organic matter content and which contain more than 60% of fine sand and silt. On these soil types, use rates of DUAL GOLD towards the lower end of the rate range and apply onto moist soil. Irrigation after application should be limited to no more than 25 mm. DO NOT use more than once per year.

Zero Tillage (Canola, Barley, Oats, Wheat, Triticale): When sowing using knife points and zero tillage, and leaving a seeding slot, DO NOT apply post-seeding unless harrows (or similar) have filled-in the seeding slot before application. Alternatively, apply DUAL GOLD immediately before seeding.

Resistant Weeds Warning
DUAL GOLD Herbicide is a member of the amide group of herbicides. The product has the herbicides with diverse sites of action mode of action. For weed resistance management, the product is a Group K herbicide. Some naturally occurring weed biotypes resistant to the product and other Group K herbicides may exist through normal genetic variability in any weed population. The resistant individuals can eventually dominate the weed population if these herbicides are used repeatedly. These resistant weeds will not be controlled by this product or other Group K herbicides. Since the occurrence of resistant weeds is difficult to detect prior to use, Syngenta Australia Pty Ltd accepts no liability for any losses that may result from the failure of this product to control the resistant weeds. Advice as to strategies and alternative treatments that can be used should be obtained from your local supplier, consultant, local Department of Agriculture, Primary Industries Department or a Syngenta representative.

Registered for culturesRatePreharvest Interval
Broccoli1.5 - 2 l
Brussels sprouts1.5 - 2 l
Cabbage1.5 - 2 l
Cauliflower1.5 - 2 l
Canola0.15 - 0.25 l
Cotton1 l
Beans1.5 - 2 l56
Corn1 - 2 l
Pasture0.2 - 0.25 l
Clover0.2 - 0.25 l
Peanuts1 - 2 l
Soybeans1 - 2 l
Sunflowers1 - 2 l
Sorghum1 - 2 l
Sugarcane1.1 - 1.8 l
Sweet potatoes1.5 l161
Tobacco1.5 l
Spring barley0.15 - 0.5 l
Winter barley0.15 - 0.5 l
Spring oats0.15 - 0.5 l
Winter oats0.15 - 0.5 l
Winter wheat0.15 - 0.25 l
Spring wheat0.15 - 0.25 l
Winter triticale0.15 - 0.25 l
Spring triticale0.15 - 0.25 l