Broadstrike

Manufacturer
Dow AgroSciences
Category
Herbicides
Registered until
2024-06-30
Registration number
40714
Active materials
Links

A water dispersible granule formulation for the post-emergence and salvage control of certain broadleaf weeds in winter cereals (including those undersown with clover, lucerne or medics); clover, fenugreek, lathyrus, lucerne, medic, serradella, and vetch (Popany only) seed crops and pastures; chickpeas, field peas, lentils, maize, peanuts; and for the pre-emergence control of certain broadleaf weeds in maize and soybeans as specified in the Directions For Use.

DIRECTIONS FOR USE 
RESTRAINTS
DO NOT apply to plants which may be stressed (not actively growing) due to prolonged periods of extreme
temperature (less than 5ºC or greater than 30ºC), moisture stress (water-logged or drought affected), poor nutrition or previous herbicide treatment as reduced levels of control may result.
DO NOT apply to plants which have suffered frosting for extended periods. Allow at least 2 days frost free prior to treatment.
DO NOT apply post-emergence treatments if rain is likely within 4 hours.
DO NOT irrigate (any method) treated crop or pasture for 48 hours after application.
DO NOT apply to crops affected by disease or by previous herbicide treatment (eg triazines or sulfonylureas).

TABLE 1A: CHICKPEAS, FIELD PEAS, LENTILS, FENUGREEK, LATHYRUS, VETCH (POPANY ONLY) AND SERRADELLA

CHICKPEAS
Growth stages: 4-6 branches (no later than 6 weeks after emergence)
Crop torelance: Broadstrike Herbicide usually causes some transient crop yellowing and can cause reddish discolouration and height suppression. Flowering may be delayed resulting in yield suppression.

FIELD PEAS
Growth stages: 2 to 6 nodes (no later than 6 weeks after emergence) 
Crop torelance: Broadstrike may cause transient crop yellowing and height suppression.
On light soils in dry seasons flowering may be delayed resulting in yield suppression.

Spray additives/ tank mixes: DO NOT use any spray additives, or tank mix any other chemicals with Broadstrike Herbicide
when using on chickpeas and field peas.

LENTILS
Growth stages: 4-8 fully expanded leaves. DO NOT apply later than 6 weeks after crop emergence 
Crop torelance: Broadstrike may cause transient height reduction, crop discolouration and delayed flowering, although yields are normally unaffected. However, stress conditions after application (eg. frost, drought, nutrient deficiency, disease) may lengthen the time needed for lentils to recover. In seasons where a dry spring occurs, yields may be suppressed. Tank mixes with other products may result in growth suppression and delayed flowering which can result in yield suppression. 
Spray additives/ tank mixes: Uptake™ Spraying Oil at 500 mL/100 L or BS-1000 at 200 mL/100 L may be applied with Broadstrike to lentils.

FENUGREEK, LATHYRUS, VETCH (Popany only)
Growth stages: 3 fully expanded leaves onwards 
Spray additives/ tank mixes: Use Broadstrike or Broadstrike plus a wetter only. Tank mixtures with other herbicides are not recommended.

SERRADELLA
Growth stages: 3 fully expanded leaves onwards
Spray additives/ tank mixes: Uptake Spraying Oil at 500 mL/100 L or BS-1000® at 200 mL/100 L may be applied with Broadstrike to serradella.

TABLE 1B: WEEDS CONTROLLED OR SUPPRESSED IN TABLE 1A CROPS
CONTROLLED

Weed: Amsinckia (Yellow burrweed)
Weed growth stage: Up To Leaf No. or: 10 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25

Weed: Ball mustard 
Weed growth stage: Up To Leaf No. or: 6 leaf 
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 25

Critical Comments: Where recommended, use of either a wetter or Uptake Spraying Oil with Broadstrike will provide better weed control.

Weed: Charlock 
Weed growth stage: Up To Leaf No. or: 8 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25
Critical Comments: Spray charlock as soon as possible after the autumn break. Larger plants and any affected by stress or grazing prior to treatment may re-grow and flower.

Weed: Indian hedge mustard
Weed growth stage: Up To Leaf No. or: 6 leaf 
Weed growth stage: Up To Plant size (cm): 5 cm diameter 
Rate g/ha: 25

Weed: Lupins
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 10 cm high 
Rate g/ha: 25

Weed: Marshmallow (Small flowered mallow)
Weed growth stage: Up To Leaf No. or: 4 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25

Weed: Pheasant’s eye 
Weed growth stage: Up To Leaf No. or: 8 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 

Weed: Shepherd’s purse
Weed growth stage: Up To Leaf No. or: 8 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25

Weed: Three-horned bedstraw 
Weed growth stage: Up To Leaf No. or: 6 whorls 
Weed growth stage: Up To Plant size (cm): 10 cm high 
Rate g/ha: 25

Weed: Turnip weed 
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 5 cm diameter 
Rate g/ha: 25

Weed: Volunteer canola
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25

Weed: Ward’s weed 
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25

Weed: Wild turnip 
Weed growth stage: Up To Leaf No. or: 6 leaf 
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 25

TABLE 1B: WEEDS CONTROLLED OR SUPPRESSED IN TABLE 1A CROPS
SUPPRESSED

Weed: Capeweed (WA only) 
Weed growth stage: Up To Leaf No. or: 4 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25
Critical Comments: Under ideal growing conditions, Broadstrike will provide useful suppression of capeweed and doublegee.
Best results will be achieved when a pre- emergence herbicide has already been used.

Weed: Doublegee (Spiny emex) (WA only) 
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25

Weed: Wild radish 
Weed growth stage: Up To Leaf No. or: 4 leaf 
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 25

Critical Comments: Under ideal growing conditions, Broadstrike without an adjuvant will give a biomass reduction of 50% - 70% of wild radish. Surviving plants may flower and set viable seed. Best results will occur with treatment in conditions of >5ºC with bright sunny conditions and use
of higher water rates of 75-100 L/ha with fine- medium quality spray droplets to get excellent spray coverage.

TABLE 2A: WHEAT, BARLEY, OATS, TRITICALE, CEREAL RYE (INCLUDING THOSE UNDERSOWN WITH CLOVER, LUCERNE OR MEDICS), CLOVER, LUCERNE AND MEDIC CROPS AND MIXED GRASSES/LEGUME PASTURES

WHEAT
Growth stages: 3 leaf until start of jointing (Zadoks 13-31) 
Spray additives/ tank mixes: Always apply with Uptake Spraying Oil at 500 mL/100 L or a 100% concentrate non-ionic wetting agent such as BS-1000 at 200 mL/100 L.

BARLEY, OATS
Growth stages: Early post-tillering to start of jointing (Zadoks 21-31)

STIRLING BARLEY
(WA only) 
Growth stages: Apply no earlier than Zadoks 31.

Crop torelance: Transient stem shortening and crop discolouration may occur, although yields are normally unaffected. Where barley and oats are undersown, a vigorous legume component may lengthen the time needed for the cereal to recover, especially if the cereal is stressed by lack of moisture, trace element deficiency or disease. In severe cases, yields may be suppressed. 
Spray additives/ tank mixes: Use only with a wetting agent such as BS-1000 when either applying Broadstrike alone or with partner products in barley and oats.

TRITICALE, CEREAL RYE
Growth stages: Early post-tillering to start of jointing (Zadoks 21-31) 
Spray additives/ tank mixes: Always apply with Uptake Spraying Oil at 500 mL/100 L or a 100% concentrate non-ionic wetting agent such as BS-1000 at 200 mL/100 L.

MEDIC, LUCERNE, AND CLOVER SEED CROPS, AND PASTURES
including; Barrel medic, Snail medic, Spineless burr medic, Subterranean clover, White clover
Growth stages: 2 to 3 trifoliate leaves onwards
Crop torelance: Medic, lucerne and subterranean clover - When Broadstrike is applied at 25 g/ha + Uptake or wetter, yield reduction may occur when treating Serena or Paraggio medic or Nungarin sub-clover. 
DO NOT apply to lucerne seed crops less than 8 weeks before flowering
Spray additives/ tank mixes: Always apply with Uptake Spraying Oil at 500 mL/100 L or a 100% concentrate non-ionic wetting agent such as BS-1000 at 200 mL/100 L.
In lucerne DO NOT use with MCPA. In medics DO NOT use with MCPA.

GRAZING LUCERNE
- high rate
Growth stages: 4 trifoliate leaves onwards 
Crop torelance: Use the 50 g/ha rate in grazing lucerne only. DO NOT apply at 50 g/ha to lucerne used for seed production.

FENCE LINES, STOCK CAMPS, STOCKYARDS, COMMERCIAL AREAS AND PASTURES
including medic, lucerne and clover pastures.
Growth stages: 2 to 3 trifoliate leaves onwards (see crop tolerance) 
Spray additives/ tank mixes: Use Uptake Spraying Oil at 500 mL/100 L.

SALVAGE SPRAY

CEREALS
Wheat, Barley, Oats, Triticale, Cereal rye
Growth stages: Flowering (anthesis) to early dough (Zadoks, 61-83)
Crop torelance: Do not use more than 25 g/ha

PASTURES, LUCERNE, CLOVER, MEDICS
Advanced seedlings or re-growth after cutting or grazing

TABLE 2B: WEEDS CONTROLLED IN TABLE 2A CROPS 

Weed: Amsinckia (Yellow burrweed) 
Weed growth stage: Up To Leaf No. or: 10 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25 + Uptake or wetter 

Weed: Ball mustard 
Weed growth stage: Up To Leaf No. or: 6 leaf 
Weed growth stage: Up To Plant size (cm): 5 cm diameter 
Rate g/ha: 25 + Uptake or wetter 

Weed: Buchan weed 
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 
Lucerne and/or clover only: 25 + wetter + 2,4-DB (500 g/L) 1.5-2.5 L/ha 
Grazing lucerne only: 50 + Uptake or wetter 
Critical Comments: Use the 50 g/ha rate in grazing lucerne only and apply from 4 trifoliate leaves onwards. DO NOT apply at 50 g/ha to lucerne used for seed production.

Weed: Calepina (White ball mustard) 
Weed growth stage: Up To Leaf No. or: 8 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25 + Uptake or wetter 

Weed: Capeweed 
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25 + Uptake or wetter + 700 mL/ha bromoxynil (200 g/L) or 25 + wetter + diuron (500 g/L) 100 mL/ha 
Critical Comments: Optimum results are obtained in a competitive pasture. For best results follow up with moderate grazing two weeks after application. In pasture, spray as soon as possible after the autumn break. Larger plants and any affected by stress or grazing prior to treatment may re-grow and flower.

Weed: Charlock 
Weed growth stage: Up To Leaf No. or: 8 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter 
Critical Comments: Spray as soon as possible after the autumn break. Larger plants and any affected by stress or grazing prior to treatment may re-grow and flower.

Weed: Cotula (WA only) 
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter Use
Critical Comments: Uptake Spraying Oil at 500 mL/100 L or wetting agent such as BS-1000 at 200 mL/100 L.

Weed: Doublegee (Spiny emex) 
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25 + wetter + diuron (500 g/L) 100 mL/ha 
Weed growth stage: Up To Leaf No. or: 6 leaf 
Weed growth stage: Up To Plant size (cm): 15 cm diameter
Rate g/ha: 25 + Uptake or wetter + 700 mL/ha bromoxynil (200 g/L) or 25 + wetter + 2,4-DB (500 g/L) 1.5-2.5 L/ha or 25 + wetter + diuron (500 g/L) 1 L/ha for Mature lucerne only
Critical Comments: Optimum results are obtained in a competitive pasture. For best results follow up with moderate grazing two weeks after application. In pasture, spray as soon as possible after the autumn break. Larger plants and any affected by stress or grazing prior to treatment may re-grow and flower.
Broadstrike + bromoxynil tank mix – use Uptake Spraying Oil or a wetter.
Broadstrike + 2,4-DB or Broadstrike + diuron tank mixes – only use a wetter.

Weed: Dwarf marigold (Poverty weed) 
Weed growth stage: Up To Leaf No. or: 10 leaf 
Weed growth stage: Up To Plant size (cm): 15 cm high 
Rate g/ha: 15 + Uptake or wetter 

Weed: Fat hen 
Weed growth stage: Up To Leaf No. or: 15 leaf
Weed growth stage: Up To Plant size (cm): 20 cm high 
Rate g/ha: Spring/summer pasture and lucerne only 25 + Uptake or wetter
Critical Comments: Spring and summer pasture and lucerne application only.
Rate g/ha: Grazing lucerne only 50 + Uptake or wetter 
Critical Comments: Use the 50 g/ha rate in grazing lucerne only and apply from 4 trifoliate leaves onwards. DO NOT apply at 50 g/ha to lucerne used for seed production.

Weed: Fumitory 
Weed growth stage: Up To Leaf No. or: 6 leaf
Weed growth stage: Up To Plant size (cm): 8 cm diameter
Rate g/ha: 25 + 300 mL/ha terbutryn (500 g/L) + wetter

Weed: Hedge mustard Indian hedge mustard
Weed growth stage: Up To Leaf No. or: 8 leaf 
Weed growth stage: Up To Plant size (cm): 10 cm diameter 
Rate g/ha: 25 + Uptake

Weed: Lupins 
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 10 cm high
Rate g/ha: 25 + Uptake or wetter

Weed: WA blue and narrow leaf lupins (WA only) 
Weed growth stage: Up To Leaf No. or: 4 to 8 leaf 
Rate g/ha: 10 + Uptake or wetter

Critical Comments: Broadstrike + terbutryn tank mixes – only use a wetter.
Note: This mixture is only approved for use in NSW, Vic and Tasmania on pastures.

Weed: Marshmallow (Small flowered mallow) seedlings
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter or 15 + wetter + 700 mL/ha bromoxynil-MCPA (200 g/L + 200 g/L), or 15 + wetter + 350 mL/ha terbutryn (500 g/L) + 700 mL/ha MCPA amine (500 g/L)
Critical Comments: Broadstrike + MCPA/terbutryn or Broadstrike + bromoxynil-MCPA tank mixes – only use a wetter. 
Only use bromoxynil/MCPA and terbutryn + MCPA mixes in cereals that are NOT undersown with clovers, medics or lucerne.
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 20 cm diameter
Critical Comments: For older plants see Weeds Suppressed. Broadstrike + 2,4-DB tank mixes – only use a wetter.
Rate g/ha: Grazing lucerne only 50 + Uptake or wetter
Critical Comments: Use the 50 g/ha rate in grazing lucerne only and apply from 4 trifoliate leaves onwards. DO NOT apply at 50 g/ha to lucerne used for seed production.

Weed: Paterson’s curse (Salvation Jane) 
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter + 700  mL/ha bromoxynil (200 g/L) or 25 + wetter + terbutryn (500 g/L) 300 mL/ha or 25 + wetter + diuron (500 g/L) 1L/ha + for Mature lucerne only
Critical Comments: In pasture, larger plants and any affected by stress or grazing prior to treatment may re-grow and flower. For best results follow up with moderate grazing two weeks after application. With terbutryn, apply in a minimum spray volume of 100 L/ha from the ground or 50 L/ha from aircraft.
Broadstrike + diuron tank mixes – only use a wetter.

Weed: Peppercress seedlings
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 15 cm diameter
Rate g/ha: 25 + wetter + 2,4-DB (500 g/L) 1.5-2.5 L/ha

Weed: Pheasant’s eye
Weed growth stage: Up To Leaf No. or: 7 leaf
Weed growth stage: Up To Plant size (cm): 10 cm high
Rate g/ha: 25 + Uptake or wetter

Weed: Shepherd’s purse
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter 

Weed: Three-horned bedstraw
Weed growth stage: Up To Leaf No. or: 6 whorls
Weed growth stage: Up To Plant size (cm): 10 cm high
Rate g/ha: 25 + Uptake or wetter 

Weed: Turnip weed
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 15 + Uptake or wetter
Weed growth stage: Up To Leaf No. or: 12 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter

Weed: Volunteer canola, Ward’s weed 
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter 

Weed: Wild radish
Weed growth stage: Up To Leaf No. or: 6 leaf
Weed growth stage: Up To Plant size (cm): 15 cm diameter
Rate g/ha: 25 + Uptake or wetter + 700 mL ha bromoxynil (200 g/L) or 25 + wetter + MCPA amine (500 g/L) 500 mL/ha or 25 + wetter + diuron (500 g/L) 1 L/ha for Mature lucerne only
Critical Comments: When conditions at spraying are less than ideal (see RESTRAINTS above), or when the crop is not competitive, some radish plants may survive to flower and set viable seed.
DO NOT use MCPA amine in cereals undersown with clover, medics or lucerne.
In lucerne DO NOT use MCPA.
In medics DO NOT use MCPA.
Broadstrike + MCPA amine tank mixes – use Uptake Spraying Oil or a wetter.
Broadstrike + MCPA/terbutryn or Broadstrike + bromoxynil/MCPA tank mixes – only use a wetter.
DO NOT use MCPA amine or MCPA amine + terbutryn in cereals undersown with clover, medics or lucerne.

Weed: Wild radish (cereals)
Weed growth stage: Up To Leaf No. or: 6 leaf
Weed growth stage: Up To Plant size (cm): 15 cm diameter
Rate g/ha: 15 + wetter + 700 mL/ha bromoxynil/MCPA (200 g/L + 200 g/L) or 15 + Uptake or wetter + 700 mL/ha MCPA amine (500 g/L) or 15 + wetter + 700 mL/ha MCPA amine (500 g/L) + 350 mL/ha terbutryn (500 g/L)
Critical Comments: When conditions at spraying are less than ideal (see RESTRAINTS above), or when the crop is not competitive, some radish plants may survive to flower and set viable seed.
DO NOT use MCPA amine in cereals undersown with clover, medics or lucerne.
In lucerne DO NOT use MCPA.
In medics DO NOT use MCPA.
Broadstrike + MCPA amine tank mixes – use Uptake Spraying Oil or a wetter.
Broadstrike + MCPA/terbutryn or Broadstrike + bromoxynil/MCPA tank mixes – only use a wetter.
DO NOT use MCPA amine or MCPA amine + terbutryn in cereals undersown with clover, medics or lucerne.

Weed: Wild turnip
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter

Weed: Wireweed
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 15 cm diameter
Rate g/ha: Pasture and lucerne only 25 + wetter + 2,4-DB (500 g/L) 1.5-2.5 L/ha
Critical Comments: Undersown clovers and lucerne, spring and summer sown pasture and lucerne crops only.

TABLE 2C: WEEDS SUPPRESSED IN TABLE 2A CROPS

Weed: Buchan weed
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter

Weed: Deadnettle
Weed growth stage: Up To Leaf No. or: 6 leaf
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 25 + wetter + 2,4-DB (500 g/L) 1.5-2.5 L/ha

Critical Comments: Broadstrike + 2,4-DB tank mixes – only use a wetter.

Weed: Doublegee (Spiny emex)
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter 
Critical Comments: Broadstrike + 2,4-DB tank mixes – only use a wetter.
Weed growth stage: Up To Leaf No. or: 6 leaf
Weed growth stage: Up To Plant size (cm): 15 cm diameter
Rate g/ha: Grazing lucerne only 50 + Uptake or wetter

Weed: Marshmallow (Small flowered mallow)
Weed growth stage: Up To Leaf No. or: 5-8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter
Rate g/ha: 25 + Uptake or wetter

Weed: New Zealand spinach
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 5 cm diameter

Weed: Paterson’s curse (Salvation Jane)
Weed growth stage: Up To Leaf No. or: 8 leaf
Weed growth stage: Up To Plant size (cm): 10 cm diameter

Weed: Peppercress
Weed growth stage: Up To Leaf No. or: 10 leaf
Weed growth stage: Up To Plant size (cm): 15 cm diameter

Critical Comments: Use the 50 g/ha rate in grazing lucerne only and apply from 4 trifoliate leaves onwards.
DO NOT apply at 50 g/ha to lucerne intended for seed production.

Weed: Stagger weed
Weed growth stage: Up To Leaf No. or: 6 leaf
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 25 + wetter + 2,4-DB (500 g/L) 1.5-2.5 L/ha

Weed: Wild radish
Weed growth stage: Up To Leaf No. or: 4 leaf
Weed growth stage: Up To Plant size (cm): 5 cm diameter
Rate g/ha: 25 + Uptake or wetter

Critical Comments: Broadstrike + 2,4-DB tank mixes – only use a wetter.

TABLE 3: SALVAGE SPRAY IN WHEAT, BARLEY, OATS, TRITICALE, CEREAL RYE, MIXED GRASS/LEGUME PASTURES, LUCERNE, CLOVER AND MEDICS

Weed: Wild radish, Turnip weed, Paterson’s curse
Weed growth stage: Early flowering of the youngest weeds to early pod formation of the oldest weeds
Rate g/ha: 25 or 50 + Uptake or wetter Use 50 g/ha only in established grazing lucerne clover, medic and legume/grass pastures
Critical Comments: Use Uptake Spraying Oil at 500 mL/100 L or wetting agent such as BS-1000 at 200 mL/100 L.
For prevention of wild radish and turnip weed seed set, apply in a minimum spray volume of 100 L/ha from the ground or 50 L/ha from aircraft.
Some re-growth may occur when wet conditions prevail after treatment. Do not use this technique if you have already applied a Group B herbicide to the crop or pasture this season. Only use this salvage spray technique with Broadstrike once per cropping cycle to minimise the development of herbicide resistance. If you suspect herbicide resistance in broadleaved weeds do not use this technique.
DO NOT use a Broadstrike salvage spray in pastures for seed production.
WARNING: Weeds that have not started to flower at application time may not be controlled by the salvage spray technique. For wild radish, time treatment to coincide with green, soft pods prior to embryo maturation in seeds. Squeeze pod between finger nails to see if any “green/white seeds” are present. Best time to treat is before seeds are visible. Use 50 g/ha only in established grazing lucerne clover, medic and legume/grass pastures.

TABLE 4: AGRICULTURAL NON-CROP AREAS

Weed: Caltrop, Capeweed, Marshmallow (Small flowered mallow) (suppression), Paterson’s curse (Salvation Jane), Wild radish
Weed growth stage: Rosette stage prior to running up to flower
Rate g/ha: Spot spray: 25 g/100 L
Critical Comments: Apply to actively growing rosettes. To ensure complete coverage, spray to the point of runoff. Use Uptake Spraying Oil at 500 mL/100 L.

TABLE 5A: SEED CROPS (Tasmania only): SUBTERRANEAN CLOVER, RED CLOVER, WHITE CLOVER, ARROWLEAF CLOVER AND LUCERNE

SEED CROPS OF SUBTERRANEAN CLOVER, RED CLOVER, WHITE CLOVER, ARROWLEAF CLOVER, LUCERNE
Growth stages: 1 to 3 trifoliate leaves onwards
Crop torelance: DO NOT apply to lucerne or clover seed crops less than 8 weeks before flowering. DO NOT apply at 40 g/ha to lucerne intended for seed production.
Spray additives/ tank mixes: Use Uptake Spraying Oil at 500 mL/100 L or a wetting agent such as BS-1000 at 200 mL/100 L.
In clover and lucerne, Broadstrike may be tank-mixed with 2,4-DB and/or bromoxynil at their respective label rates for complete control of suppressed weeds.

TABLE 5B: WEEDS CONTROLLED OR SUPPRESSED IN TABLE 5A CROPS
WEEDS CONTROLLED

Weed: Charlock
Weed growth stage: Up to 3½ leaf stage
Rate g/ha: 25 + Uptake or wetter

Weed: Fat hen, Lesser swinecress, Mustards, Shepherd’s purse, Wild radish, Wild turnip
Weed growth stage: Beyond 3½ leaf stage and up to 10 leaf stage
Rate g/ha: 40 + Uptake or wetter

Critical Comments: Use Uptake Spraying Oil at 500 mL/100 L or wetting agent such as BS-1000 at 200 mL/100 L.

WEEDS SUPPRESSED

Weed: Capeweed, Chickweed, Fumitory, Spurrey, Wireweed
Weed growth stage: Beyond 3½ leaf stage and up to 10 leaf stage
Rate g/ha: 40 + Uptake or wetter
Critical Comments: In clover and lucerne, seedlings of these weeds will be suppressed with Broadstrike alone. In clover and lucerne, Broadstrike may be tank-mixed with 2,4-DB and/or bromoxynil at their respective label rates for complete control of suppressed weeds. Only use a wetting agent at 200 mL/100 L with these tankmixes.

TABLE 6A: SOYBEANS, LUCERNE, MAIZE AND PEANUTS

MAIZE
Growth stages: Post-plant pre-emergence (PPPE)
Application methods: Apply Broadstrike after planting and before emergence of crop and weeds. Apply to moist soil only.
Spray additives/ tank mixes: May be tank mixed with pendimethalin.
Growth stages: Post-emergent Up to 8 leaf stage
Spray additives/ tank mixes: Apply with Uptake Spraying Oil at 500 mL/100 L spray volume or with a 100% concentrate non-ionic wetter such as BS-1000 at 200 mL/100 L.

SOYBEAN
Growth stages: Pre-plant Incorporated (PPI)
Application methods: Incorporate into the soil within 4 hours by making two passes in opposite directions using a combine with trailing harrows or similar equipment, to ensure thorough incorporation.
Spray additives/ tank mixes: May be tank mixed with Treflan 480 or pendimethalin.

Growth stages: Incorporated By Sowing (IBS)
Application methods: Ensure the planting operation is done within 4 hours of application, using a combine with trailing harrows or similar equipment, to ensure thorough incorporation.
Spray additives/ tank mixes: May be tank mixed with Treflan 480 or pendimethalin.

Growth stages: Post-plant Pre- emergent (PPPE)
Application methods: Apply Broadstrike after planting and before emergence of crop and weeds. Apply to moist soil only.
Spray additives/ tank mixes: May be tank mixed with pendimethalin.

LUCERNE
Growth stages: Post-emergent Up to 6 trifoliate leaf stage

PEANUTS
Growth stages: Post-emergent Up to 6 leaf stage

Spray additives/ tank mixes: DO NOT apply at 50 g/ha to lucerne intended for seed production.
Apply with Uptake Spraying Oil at 500 mL/100 L spray volume or with a 100% concentrate non-ionic wetter such as BS-1000 at 200 mL/100 L. 

Crop torelance: Some transitory crop yellowing and height suppression should be expected but yields will be unaffected.

TABLE 6B: WEEDS CONTROLLED OR SUPPRESSED IN TABLE 6A CROPS
WEEDS CONTROLLED

Weed: Volunteer cotton (including Roundup Ready Cotton)
Weed growth stage: Pre-emergence
Rate g/ha: 50

Weed: Caltrop, Fat hen, Turnip weed, Wild radish
Weed growth stage: Post-emergent Up to 4 leaf
Rate g/ha: 25 or 50 + Uptake or wetter

WEEDS SUPPRESSED

Weed: Black pigweed, Bladder ketmia, Caltrop, Cobbler’s-pegs
Weed growth stage: Pre-emergent
Rate g/ha: 25 or 50

Weed: Annual ground cherry, Anoda weed, Bladder ketmia, Boggabri weed, Fierce thornapple (Qld only), Red pigweed, Wild gooseberry
Weed growth stage: Post-emergent Up to 4 leaf
Rate g/ha: 25 or 50 + Uptake or wetter

Critical Comments: Cotton (including Roundup Ready Cotton) – may be banded (>40% over the row or broadcast).
WEED CONTROL: Minimum spray volume 150 L/ha for optimum results. In pre-emergent situations use the higher rate for longer soil residual effect and better suppression of more tolerant weeds (see WEEDS SUPPRESSED). In post-emergent situations use 25 g/ha on weeds up to 2 leaf stage and 50 g/ha on larger weeds up to 4 leaf stage and where more residual control is required.

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

HARVESTING WITHHOLDING PERIODS
Chickpeas, field peas, lentils, maize, peanuts and soybeans: NOT REQUIRED WHEN USED AS DIRECTED.
Winter cereals (barley, cereal rye, oats, triticale, wheat): DO NOT HARVEST FOR 4 WEEKS AFTER APPLICATION.

GRAZING/STOCK FOOD WITHHOLDING PERIODS
Winter cereals (barley, cereal rye, oats, triticale, wheat), chickpeas, field peas, lentils, peanuts, soybeans and popany vetch:
DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 4 WEEKS AFTER APPLICATION. Note: This 4 week WHP covers
the use of Broadstrike tank mixed with bromoxynil (200 g/L) at 700 mL/ha (Table 2B) on cereals.
Maize: DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 14 DAYS AFTER APPLICATION.
Fenugreek, lathyrus, lucerne, medic, serradella: DO NOT GRAZE OR CUT FOR STOCK FOOD OR HARVEST FOR SEED FOR 3 DAYS AFTER APPLICATION. Note: When tank mixing Broadstrike with bromoxynil (200 g/L) at 700 mL/ha (Table 2B) a 2 week WHP is required.
Pastures (unless otherwise specified): DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 7 DAYS AFTER APPLICATION. Note: When tank mixing Broadstrike with bromoxynil (200 g/L) at 700 mL/ha (Table 2B) a 2 week WHP is required.

LIVESTOCK DESTINED FOR EXPORT MARKETS
The grazing withholding period only applies to stock slaughtered for the domestic market. Some export markets apply different standards. To meet these standards, ensure that in addition to complying with the grazing withholding period, that the Export Slaughter Interval is observed before stock are sold for export slaughter.

EXPORT SLAUGHTER INTERVAL (ESI) – 7 days:
After observing the withholding period for grazing or cutting for stock food, livestock that have been grazed on or fed treated crops should be placed on clean feed for 7 days prior to slaughter.

EXPORT ANIMAL FEED INTERVAL (EAFI) – 28 days (Fenugreek, lathyrus, lucerne, pasture and serradella only):
A minimum period of 28 days must elapse between the application of Broadstrike Herbicide and grazing or cutting the treated pasture as stockfeed for livestock intended for export.

MINIMUM RECROPPING PERIODS
Broadstrike is broken down in the soil by microbial activity. Warm, moist soil conditions favour highest microbial activity and quickest residue breakdown. For the recropping periods NNSW & Qld refers to summer dominant rainfall areas, where crops are grown on deep black earth soils (vertisols), with no impermeable sub-horizon in the top
30 cm. SNSW, Vic, Tas, SA and WA refers to winter dominant rainfall areas on soils with no impermeable sub-horizon in the top 30 cm. Also see the comments on rainfall and soil type below.

CROP: Cereal rye, medics, triticale, wheat, maize or soybeans
RATE (g/ha): 25 or 50
REGION: NNSW, Qld: May be planted at any time after Broadstrike application
REGION: SNSW, Vic, Tas, SA, WA: May be planted at any time after Broadstrike application

CROP: Barley, chickpeas, clover, field peas, lucerne, oats and peanuts
RATE (g/ha): 25
REGION: NNSW, Qld: 3 months
3 months
RATE (g/ha): 50
REGION: NNSW, Qld: 6 months
REGION: SNSW, Vic, Tas, SA, WA: 9 months

CROP: Sorghum or sunflowers
RATE (g/ha): 25
REGION: NNSW, Qld: 6 months
REGION: SNSW, Vic, Tas, SA, WA: -
RATE (g/ha): 50
REGION: NNSW, Qld: 9 months
REGION: SNSW, Vic, Tas, SA, WA: -

CROP: Cotton
RATE (g/ha): 25 or 50
REGION: NNSW, Qld: 24 months
REGION: SNSW, Vic, Tas, SA, WA: -

CROP: Canola, faba beans, fenugreek, lathyrus, lentils, lupins, serradella or popany vetch
RATE (g/ha): 25
REGION: NNSW, Qld: 6 months
REGION: SNSW, Vic, Tas, SA, WA: 9 months
RATE (g/ha): 50
REGION: NNSW, Qld: 9 months
REGION: SNSW, Vic, Tas, SA, WA: 12 months

Rainfall – is required to maintain soil wetness for at least one week over the warm months to enable microbial degradation of herbicide residues to allow safe planting of sensitive crops. For SNSW, Victoria, Tasmania, SA and WA a minimum of 25 mm and preferably 50 mm or more rain must have fallen over the warm months of the year. For NNSW and Qld a minimum of 50 mm and preferably 100 mm rain or more must have fallen over the warm months of the year.
Soil type – on shallow, duplex, low organic matter soils with an impermeable sub-horizon within the root zone (30 cm deep or less) and alkaline surface soil, sensitive crops should NOT be planted until 2 years after application of Broadstrike at either 25 or 50 g/ha. (For crops grown in NNSW and Qld on soils other than vertisols, call Dow AgroSciences or your local reseller for more advice).
Where BROADSTRIKE residue carryover is suspected and susceptible crops are to be planted, test the treated area as follows: Where rain or irrigation allows, plant a small area of the susceptible crop 4 to 6 weeks before desired planting date and take note of any symptoms of injury. If any herbicide symptoms are observed, only plant
a winter cereal.
Pot bioassay – Where not practical to do field bioassay, plant a small number of seeds of the susceptible crop into pots containing soil from the treated field. Do this test 4 to 6 weeks before desired planting date. If any herbicide symptoms are observed, only plant a cereal crop.
Canola and cotton are highly sensitive to BROADSTRIKE and therefore are a good test species for a bioassay.

GENERAL INSTRUCTIONS
Broadstrike granules readily disperse in water and will do so once added to fast moving water. Maintain agitation at all times, including during mixing as well as spraying. Only mix sufficient spray solution for immediate use and avoid storing.

MIXING
Spray rigs with premix hoppers
For spray rigs that have a drop down chemical induction hopper, three-quarter fill this hopper with water and have the rinsing sprinkler operating. Add the Broadstrike granules and when they are dissolved and the granules are dispersed, transfer this batch into the quarter filled main tank. Continue to rinse the hopper until the entire product has washed through.

Spray rigs with limited bypass agitation
When Broadstrike is added to the spray tank for spray rigs that have limited bypass agitation, then as for most granulated formulations, pre-disperse the
Broadstrike in a bucket before adding them to the main tank. Add Broadstrike while stirring until the granules have dispersed.

Tank mixes – this order should be followed:
1. Quarter fill the spray tank and agitate
2. Add Broadstrike using the mixing procedure above
3. Add Verdict™ 520 if to be used
4. Half fill the spray tank
5. Add wettable powders, dry flowables, suspension concentrates, soluble liquids and/or emulsifiable concentrates
6. Add Uptake Spraying Oil when half full
7. Other adjuvants add according to their label
8. Add water to fill the spray tank
Read and follow all label directions including restraints, spray drift restraints, mandatory no-spray zones, CRITICAL COMMENTS and SAFETY DIRECTIONS for the tank mix products.

APPLICATION
Ground Application: Apply Broadstrike in 50 to 150 litres of water per hectare through a calibrated sprayer that delivers at least medium quality spray as defined by the ASAE Standard S572.
DO NOT apply Broadstrike under conditions likely to cause drift onto waterways, susceptible crops or land to be planted with susceptible crops. Unsuitable conditions are dead calm, excessive wind and/or small droplets.
Best results are achieved where applications are made on warm (greater than 5ºC), sunny days applying more than 50 L/ha of total spray volume (preferably more than 75 L/ha) and where spray coverage is maximised.

COMPATIBILITY
Always allow 7 days between application of a grass herbicide and Broadstrike in chickpeas and field peas.
In lentils, adjuvant, broadleaf or grass herbicide, insecticide and foliar fertiliser tank mixes may result in transient height reduction, crop discolouration and delayed flowering, although yields are normally
unaffected. However, stress conditions after application (eg. frost, drought) may lengthen the time needed for lentils to recover and in years where a dry spring occurs, yields may be suppressed.
Broadstrike is compatible with the following:

Adjuvants
Uptake™ Spraying Oil, Hasten® Spray Adjuvant, BS-1000

Broadleaf herbicides
Atrazine: 

Diuron (liquid or wettable granule)
Spinnaker Herbicide
Basagran Herbicide:
Lontrel 750 SG Herbicide
Lontrel Herbicide
Starane Advanced
Bromoxynil:
MCPA amine
Stomp 330E Herbicide
2,4-DB:
MCPA ester
Terbutryn
Diflufenican (lentils and field peas only):
MCPA sodium salt
Tordon 242 Cereal Herbicide
Jaguar Herbicide:
Metsulfuron
Treflan 480

Grassweed herbicides
Clethodim (lentils only):
Simazine
Hoegrass Selective Herbicide (ryegrass only):
Treflan 480
Tristar Advance Selective Herbicide
Paraquat:
clodinafop
Verdict 520 Herbicide
Wildcat Selective Herbicide (wild oats only)

Insecticides
Dimethoate, esfenvalerate (lentils only), Lorsban Insecticides, omethoate

Fungicides (lentils only)
Carbendazim, chlorothalonil, Dithane Rainshield Neo Tec Fungicide

Foliar Fertilisers
Broadacre zinc (lentils only)
Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
 Registered Trademarks

CLEANING SPRAY EQUIPMENT
After using Broadstrike, empty the tank completely and drain the whole system. Thoroughly wash inside the tank using a pressure hose. Drain the tank and clean any filters in the tank, pump, lines and nozzles.
To rinse: After cleaning the tank as above, quarter fill the tank with clean water and circulate through the pump, lines, hoses and nozzles. Drain and repeat the rinsing procedure twice.
To decontaminate: Before spraying sensitive crops (which include canola, cotton, faba beans, lupins, sorghum and sunflowers), wash the tank and rinse the system as above. Quarter fill the tank and add an alkali detergent at 500 mL/100 L of water or the powder equivalent at 500 g/100 L) and circulate throughout the system for at least fifteen minutes. Drain the whole system. Remove filters and nozzles and clean them separately. Finally flush the system with clean water and allow to drain. Chlorine based cleaners are not recommended.
Nufarm Tank and Equipment Cleaner is not recommended.
Rinse water should be discharged onto a designated disposal area or, if this is unavailable, onto unused land away from desirable plants and watercourses.

RESISTANT WEEDS WARNING
Broadstrike Herbicide is a broadleaf herbicide with no annual ryegrass activity and is a member of the triazolopyrimidine sulfonanilide (sulfonamide) group
of herbicides. The product has the acetolactate synthase (ALS) inhibitor mode of action. For weed resistance management the product is a Group B herbicide.
Some naturally occurring weed biotypes resistant to the product and other Group B 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 B herbicides. Since the occurrence of resistant weeds is difficult to detect prior to use, Dow AgroSciences accepts no liability for any losses that may result from the failure of the product
to control resistant weeds. Strategies to minimise the risk of herbicide resistance are available. Contact your farm chemical supplier, consultant, local Department of Agriculture, or local Dow AgroSciences representative.

Registered for culturesRateBBCHPreharvest Interval
Chickpeas25 g0
Peas25 g0
Lentils25 g0
Vetch25 g0
Alfalfa10 - 50 g0
Winter wheat10 - 25 g13 - 8328
Spring wheat10 - 25 g13 - 83
Spring barley10 - 25 g21 - 83
Winter barley10 - 25 g21 - 8328
Spring oats10 - 25 g21 - 83
Winter oats10 - 25 g21 - 8328
Winter triticale10 - 25 g21 - 8328
Spring triticale10 - 25 g21 - 83
Winter rye10 - 25 g21 - 8328
Clover10 - 25 g0
Pasture10 - 25 g0
Soybeans25 - 50 g0
Corn25 - 50 g0
Peanuts25 - 50 g0