Canada

Starane II

Registered until: December 31, 2025
Dow AgroSciences - herbicide
29463

GENERAL INFORMATION


Starane II is a selective postemergent herbicide for the control of annual broadleaved weeds in spring wheat, durum wheat, winter wheat, spring barley and oats, not underseeded with legumes. Starane II offers a novel mode of action for controlling hard-to-kill annual broadleaved weeds such as kochia (including ALS resistant biotypes) and cleavers. Starane II will also provide suppression of hempnettle, wild buckwheat and chickweed.

MODE OF ACTION
Starane II is a systemic auxin-type herbicide and moves within the plant for control of exposed and underground plant tissues. The product controls weeds by disrupting normal plant growth patterns. Symptoms of weeds include epinasty (twisting of the stems) and swollen nodes.

GENERAL USE PRECAUTIONS

Sensitive Plants
Do not apply Starane II directly to, or otherwise permit it to come in direct contact with susceptible crops or desirable plants including alfalfa, edible beans, canola, flowers and ornamentals, lentils, lettuce, peas, potatoes, radishes, soybeans, sugar beets, sunflowers, tomatoes or tobacco.

Non-Target Sites
Do not apply where proximity of susceptible crops or other desirable plants is likely to result in exposure to spray or spray drift. See Environmental Hazards section of the label. To reduce runoff from treated areas into aquatic habitats avoid application to areas with a moderate to steep slope, compacted soil, or clay. Avoid application when heavy rain is forecast. Contamination of aquatic areas as a result of runoff may be reduced by including a vegetative strip between the treated area and the edge of the water body. As this product is not registered for the control of pests in aquatic systems, DO NOT use to control aquatic pests. DO NOT contaminate irrigation or drinking water supplies or aquatic habitats by cleaning of equipment or disposal of wastes.

Field sprayer application
DO NOT apply during period of dead calm. Avoid application of this product when winds are gusty. DO NOT apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE) medium classification. Boom height must be 60 cm or less above the crop or ground.

Aerial application
DO NOT apply during periods of dead calm. Avoid application of this product when winds are gusty. DO NOT apply when wind speed is greater than 16 km/h at flying height at the site of application. DO NOT apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE) medium classification. To reduce drift caused by turbulent wingtip vortices, the nozzle distribution along the spray boom length MUST NOT exceed 65% of the wing or rotor span.

Crop Rotation
Fields previously treated with Starane II can be seeded the following year to alfalfa, barley, canola, corn, dry beans, flax, forage grasses, lentils, mustard, oats, peas, potatoes, rye, soybeans, sugar beets, sunflowers or wheat or fields can be summerfallowed.

Tank Mixtures
In some cases, tank mixing a pest control product with another pest control product or a fertilizer can result in biological effects that could include, but are not limited to: reduced pest efficacy or increased host crop injury. The user should contact Dow AgroSciences Canada Inc at 1-800-667-3852 or www.dowagro.ca for information before mixing any pesticide or fertilizer that is not specifically recommended on this label. The user assumes the risk of losses that result from the use of tank mixes that do not appear on this label or that are not specifically recommended by Dow AgroSciences Canada Inc. Spray Equipment Precaution Do not apply through any type of irrigation system.

To Reduce Spray Drift
Use nozzles delivering higher volumes and coarser droplets.
Use low pressures (200 to 275 kPa).
Spray when the wind velocity is 15 km/hr or less.
Spot treatments should only be applied with a calibrated boom to prevent over-application.
Apply only when the potential for drift to areas of human habitation or areas of human activity such as houses, cottages, schools and recreational areas is minimal. Take into consideration wind speed, wind direction, temperature inversions, application equipment and sprayer settings.

Equipment Clean-Up
Equipment used to apply Starane II should not be used to apply other pesticides to sensitive crops without thorough cleaning. Contact your Starane II dealer for detailed equipment cleaning procedures.

DIRECTIONS FOR USE

READ THE ENTIRE LABEL BEFORE USE. FAILURE TO FOLLOW LABEL INSTRUCTIONS MAY RESULT IN ERRATIC WEED CONTROL OR CROP DAMAGE. DO NOT APPLY TO CROPS UNDERSEEDED WITH LEGUMES.

Crops Registered spring wheat durum wheat winter wheat spring barley oats

STARANE II HERBICIDE ALONE
Apply Starane II Herbicide with ground or aerial application equipment (see Application directions section) for postemergent control of cleavers and kochia, including ALS resistant kochia and other broadleaved weeds infesting spring wheat, durum wheat, winter wheat, spring barley and oats. See following table for weeds controlled/suppressed and applications rates.

Application Timing
Apply to actively growing spring wheat, durum wheat, spring barley and oats from the 2-leaf crop growth stage up to and including initiation of stem elongation. Apply to winter wheat in the spring from the 3 tiller stage to just before the flag leaf stage. Apply when weeds are actively growing. Best results are obtained from applications made to seedling weeds. Only weeds emerged at the time of treatment will be controlled. Extreme growing conditions such as drought or near freezing temperature prior to, at and following time of application may reduce weed control and increase the risk of crop injury at all stages of growth. Foliage that is wet at the time of application may decrease control. Starane II applications are rainfast within 1 hour after application. Under conditions of low crop and high weed density, control may be reduced.

Preharvest/Grazing Intervals (Starane II applied alone) 
Livestock may be grazed on treated crops 3 days following application.
Do not harvest the treated crop within 60 days after application.

APPLICATION DIRECTIONS (GROUND AND AERIAL APPLICATIONS) (

1) Ground Application
Using ground equipment, apply Starane II alone or with tank mix partners as a broadcast treatment. Apply Starane II alone at the recommended rates in a spray volume of 50-100 L water/ha. When tank mixing refer to the label of the tank mix partner label for additional instructions, water volumes, precautions and weeds controlled.

(2) Aerial Application

Do not use human flaggers.
Use Starane II alone or tank mixed with a product registered for aerial application as a broadcast treatment. Apply the recommended rates of Starane II and tank mix partner as indicated elsewhere on this label. Apply in a spray volume of 30-50 L water/ha. Refer to the tank mix partner label for additional instructions, precautions and weeds controlled. Apply only by fixed-wing or rotary aircraft equipment which has been functionally and operationally calibrated for the atmospheric conditions of the area and the application rates and conditions of this label. Label rates, conditions and precautions are product specific. Read and understand the entire label before opening this product. Apply only at the rate recommended for aerial application on this label. Where no rate for aerial application appears for the specific use, this product cannot be applied by any type of aerial equipment. Ensure uniform application. To avoid streaked, uneven or overlapped application, use appropriate swath marking devices.

Use Precautions
Apply only when meteorological conditions at the treatment site allow for complete and even coverage. Apply only under conditions of good practice specific to aerial application as outlined in the National Aerial Pesticide Application Manual, developed by the Federal/Provincial/Territorial Committee on Pest Management and Pesticides.

Operator Precautions
Do not allow the pilot to mix chemicals to be loaded onto the aircraft. Loading of premixed chemicals with a closed system is permitted. It is desirable that the pilot have communication capabilities at each treatment site at the time of application.
The field crew and the mixer/loaders must wear chemical resistant gloves, coveralls and goggles or face shield during mixing/loading, cleanup and repair. Follow the more stringent label precautions in cases where the operator precautions exceed the generic label recommendations on the existing ground boom label. All personnel on the job site must wash hands and face thoroughly before eating and drinking. Protective clothing, aircraft cockpit and vehicle cabs must be decontaminated regularly.

Product Specific
Precautions Read and understand the entire label before opening this product. If you have questions, call the manufacturer at 1-800-667-3852 or obtain technical advice from the distributor or your provincial agricultural representative. Application of this specific product must meet and/or conform to the following:  The interaction of many equipment-and-weather-related factors determine the potential for spray drift. Users are responsible for considering all these factors when making decisions. The following drift management requirement must be followed to avoid off-target drift movement from aerial applications: Nozzles must always point backward parallel with the air stream and never be pointed downwards more than 45 degrees.

TANK-MIX COMBINATIONS - STARANE II HERBICIDE + LIQUID ACHIEVE1 SC HERBICIDE OR ACHIEVE LIQUID HERBICIDE (Do not apply to oats)
For control of wild oats and green foxtail in spring wheat, winter wheat and spring barley apply 0.5 L/ha of Liquid Achieve SC or Achieve Liquid with Starane II. Refer to the above table for rates and broadleaved weeds controlled or suppressed with Starane II. Read both product labels thoroughly for more information on precautions and additional directions for use. To control additional broadleaved weeds tank mix with either 2,4-D ester or MCPA ester up to a maximum of 560 g ae/ha. (equivalent to 1.0 L/ha of 2,4-D LV600 Herbicide (0.85 L/ha 2,4-D Ester 700 Herbicide) or 1.12 L/ha of MCPA LV500 Herbicide (0.93 L/ha MCPA Ester 600 Herbicide)) or 1.5 to 2.0 L/ha Curtail M Herbicide. Refer to the 2,4-D ester or MCPA ester tank mix partner label for rates less than 560 g ae/ha and weeds controlled.

Mixing Instructions
1. Begin to fill sprayer tank with clean water, and engage agitator. Agitation must be continued throughout the entire mixing and spraying procedure.
2. When the sprayer is three quarters full of water, add Liquid Achieve SC or Achieve Liquid. If more than one container of Liquid Achieve SC or Achieve Liquid is to be used, add all Liquid Achieve SC or Achieve Liquid containers prior to adding Starane II.
3. Add Starane II next. If more than one container of Starane II Herbicide is to be used, add all Starane II containers prior to adding any other tank-mix partners.
4. If 2,4-D ester, MCPA ester or Curtail M are also being added, add these next. If more than one container of 2,4-D ester, MCPA ester or Curtail M is to be used, add all 2,4-D ester, MCPA ester or Curtail M containers prior to adding Turbocharge D or Turbocharge.
5. Lastly, add the required amount of Turbocharge D or Turbocharge and then continue to fill tank to desired level with water.

TANK-MIX COMBINATIONS - STARANE II HERBICIDE + CURTAILTM M HERBICIDE
Starane II mixed with Curtail M Herbicide will control a wide spectrum of broadleaf weeds. Refer to Curtail M Herbicide label for additional precautions and directions for use, particularly crop rotation restrictions.

Mixing Instructions
Add the correct amount of Starane II to spray tank 1/2 filled with water and agitate. Add the correct amount of Curtail M Herbicide and continue to agitate.

Timing of Application
Apply postemergence when weeds are in the seedling stage (2-4 leaf) and when spring wheat, durum wheat, spring barley and oats are in the 3-leaf to just before the flag leaf emergence stage. Apply to winter wheat in the spring from the 3 tiller stage to just before the flag leaf stage. Do not apply later than the flag-leaf stage.

The active ingredients in this tank mixture will only control chickweed that is emerged at TIME OF application. Chickweed plants which emerge after application will not be controlled. To improve the reduction in chickweed population at the end of season, delay the timing of application as late as possible to when the majority of chickweed plants have emerged. The reduction in chickweed population will also be improved in crops which are more competitive and which allow limited light penetration.

Pre-Harvest/Grazing Intervals (Starane II + Curtail M Herbicide)
 Do not cut or graze treated fields within 7 days after application.
 Do not harvest the treated mature crop within 60 days after application.
When tank mixing with Curtail M Herbicide, wear goggles or face shield, coveralls and chemically resistant gloves, apron and boots when mixing, loading and during clean-up and repair.
Curtail M Herbicide contains an ingredient that is rapidly absorbed through the skin and respiratory tract.

TANK MIXES WITH STARANE II HERBICIDE + CURTAIL M HERBICIDE FOR ANNUAL GRASS CONTROL (Do not apply to oats)
Tank mixtures of Starane II + Curtail M Herbicide with other herbicides will provide control of additional weeds. See following table for tank mixes with Starane II + Curtail M Herbicide. Follow all precautions, minimal interval to harvest and directions for use on the Starane II and tank-mix partner labels.

TANK-MIX COMBINATION - STARANE II HERBICIDE + 2,4-D ESTER HERBICIDE (Do not apply to oats)
For control of a wide spectrum of broadleaved weeds (see following table) apply Starane II Herbicide tank mixed with 2,4-D ester herbicide. Apply postemergence when weeds are in the seedling stage (2-4 leaf) and when spring wheat, durum wheat, winter wheat and spring barley are in the 4-leaf to flag-leaf stage. Apply to winter wheat in the spring from the 3 tiller stage to just before the flag leaf stage. Application before the 4-leaf stage of wheat and barley may cause severe twisting of leaves and stem, and head deformities which may reduce yield up to 10%. Do not apply later than the flag-leaf stage.

Mixing Instructions
Add the correct amount of Starane II Herbicide to spray tank 1/2 filled with water and agitate. Add the correct amount of 2,4-D ester herbicide (e.g. 2,4-D Ester LV700 Herbicide) and continue to agitate.

Pre-Harvest/Grazing Intervals (Starane II Herbicide + 2,4-D ester herbicide)
Do not permit lactating dairy animals to graze fields within 7 days after application.
Do not harvest forage or cut hay within 30 days after application.
Withdraw meat animals from treated fields at least 3 days before slaughter.
Do not harvest the treated mature crop within 60 days after application.

TANK-MIX COMBINATIONS - STARANE II HERBICIDE + 2,4-D ESTER HERBICIDE + OTHER HERBICIDES (Do not apply to oats)
Tank mixtures of Starane II Herbicide + 2,4-D ester herbicide with other herbicides will provide control of additional weeds. For products which may be tank mixed with Starane II Herbicide + 2,4-D ester herbicide and the additional weeds controlled see following table. Follow all precautions, minimal interval to harvest and directions for use on the Starane II Herbicide and tank-mix partner labels.

TANK-MIX COMBINATIONS – STARANE II HERBICIDE + 2,4-D ESTER HERBICIDE + REFINE EXTRA 75 DF HERBICIDE OR REFINE EXTRA 75 TOSS-N-GO HERBICIDE OR REFINE SG HERBICIDE OR REFINE SG TOSS-N-GO HERBICIDE (Do not apply to oats)
Spring Wheat (excluding durum) and spring barley For control of a wide spectrum of broadleaf weeds, including cleavers, Starane II Herbicide may be tank mixed with 2,4-D ester herbicide and Refine Extra 75 DF Herbicide or Refine Extra 75 Toss-N-Go Herbicide or Refine SG Herbicide or Refine SG Toss-N-Go Herbicide. Apply Starane II Herbicide at 0.16 L/ha tank mixed with Refine Extra 75 DF Herbicide or Refine Extra 75 Toss-N-Go Herbicide at 20 g/ha, or Refine SG Herbicide or Refine SG Toss-N-Go Herbicide at 30 g/ha, 2,4-D ester herbicide at 280 g a.e./ha (equal to 0.5 L/ha of 2,4-D Ester LV 600 or 0.42 L/ha of 2,4-D Ester LV 700) and a non-ionic surfactant (Agral 90, Ag-Surf or Citowett Plus) at 2 L per 1000 L of spray solution. A spray volume of 100 L/ha should be utilized. Apply postemergence when weeds are in the seedling up to 4-leaf/whorls stage, and when spring wheat (excluding durum) and spring barley are in the 4-leaf to flag-leaf stage. Do not apply to crops underseeded to legumes.

Mixing Instructions
Fill the tank to 1/3 full of clean water. With agitator running, add required amount of Refine Extra 75 DF Herbicide or Refine Extra 75 Toss-N-Go Herbicide or Refine SG Herbicide or Refine SG Toss-N-Go Herbicide and continue to agitate for a minimum of 5 minutes to ensure the Refine Extra 75 DF Herbicide or Refine Extra 75 Toss-N-Go Herbicide or Refine SG Herbicide or Refine SG Toss-N-Go Herbicide is completely dissolved. After it is fully dissolved add the Starane II Herbicide with continuous agitation. Add the 2,4-D ester herbicide and the rest of the water. Then add adjuvant. Use a spray volume of 100 L/ha. Consult the 2,4-D label for additional application instructions and use precautions.

Preharvest/Grazing Intervals (Starane II + Refine Extra + 2,4-D ester)
Allow 7 days between application and grazing of lactating dairy animals.
Do not harvest forage or cut hay within 30 days after application.
Remove meat animals from treated fields at least 3 days prior to slaughter.
Do not harvest the treated mature crop within 60 days after application.

TANK-MIX COMBINATION - STARANE II HERBICIDE + MCPA ESTER HERBICIDE
For control of a wide spectrum of broadleaved weeds (see following table) apply Starane II Herbicide at 0.31 L/ha tank mixed with MCPA LV500 Herbicide at 1.12 L/ha or MCPA Ester 600 Herbicide at 0.93 L/ha. Apply postemergence when weeds are in the seedling stage (2-4 leaf) and when spring wheat, durum wheat, spring barley and oats are in the 3-leaf to flag-leaf stage. Apply to winter wheat in the spring from the 3 tiller stage to just before the flag leaf stage. Application before the 3-leaf stage of wheat and barley may cause severe twisting of leaves and stem, and head deformities which may reduce yield up to 10%. Do not apply later than the flag-leaf stage. Do not apply to cereals underseeded with a legume.

Mixing Instructions
Add the correct amount of Starane II to spray tank 1/2 filled with water and agitate. Add the correct amount of MCPA ester herbicide and continue to agitate.

Pre-Harvest/Grazing Intervals (Starane II + MCPA ester herbicide)
Allow 7 days between application and grazing/cutting for hay.
Do not harvest the treated mature crop within 60 days after application.

TANK-MIX COMBINATIONS - STARANE II HERBICIDE + MCPA ESTER HERBICIDE + OTHER HERBICIDES (Do not apply to oats)
Tank mixtures of Starane II + MCPA ester herbicide with other herbicides will provide control of additional weeds. For products which may be tank mixed with Starane II + MCPA ester herbicide and the additional weeds controlled see following table. Follow all precautions, minimal interval to harvest and directions for use (including timing of application) on the Starane II and tank-mix partner labels.

TANK-MIX COMBINATION - STARANE II HERBICIDE +SIMPLICITYTM (Do not apply to oats)
For control of a wide spectrum of broadleaf and grass weeds (see following table) in spring wheat, durum wheat and winter wheat, apply Starane II tank mixed with Simplicity. Apply post-emergence when weeds are actively growing: grass weeds up to the 4 leaf, 2 tiller stage and broadleaf weeds as indicated in the following table. Best results are obtained from applications made to seedling weeds. Apply to actively growing spring or durum wheat from the 3 leaf stage to the first node stage. Apply to winter wheat in the 2-7 leaf, 4 tiller stage with a spring application. Extreme growing conditions such as drought or near freezing temperature prior to, at, or following time of application may reduce weed control and increase the risk of crop injury at all stages of growth. Under conditions of low crop and high weed density, control may be reduced.

Mixing Instructions
Fill the sprayer tank ½ full of water and start sprayer tank agitation. Add the required amount of Simplicity. Add the correct amount of Starane II and continue to agitate.

Preharvest/Grazing Intervals (Starane II and Simplicity)
Livestock may be grazed on treated crops 7 days following application.
Do not harvest the treated crop within 60 days after application.

TANK-MIX COMBINATIONS –STARANE II HERBICIDE + SIMPLICITY + OTHER HERBICIDES (Do not apply to oats)
When tank mixing Starane II + Simplicity at either the low or high rates, the addition of other herbicides will provide control of additional weeds. For products which may be tank mixed with Starane II + Simplicity and the additional weeds controlled see following table. Follow all precautions, minimal interval to harvest and directions for use on the Starane II and tank-mix partner labels.

BUFFER ZONES
Use of the following spray methods or equipment DO NOT require a buffer zone: hand-held or backpack sprayer and spot treatment. For application to rights-of-way, buffer zones for protection of sensitive terrestrial habitats are not required; however, the best available application strategies which minimize off-site drift, including meteorological conditions (e.g., wind direction, low wind speed) and spray equipment (e.g., coarse droplet sizes, minimizing height above canopy), should be used. Applicators must, however, observe the specified buffer zones for protection of sensitive aquatic habitats. The buffer zones specified in the table below are required between the point of direct application and the closest downwind edge of sensitive terrestrial habitats (such as grasslands, forested areas, shelter belts, woodlots, hedgerows, riparian areas and shrublands) and sensitive freshwater habitats (such as lakes, rivers, sloughs, ponds, prairie potholes, creeks, marshes, streams, reservoirs and wetlands) and estuarine/marine habitats.

For tank mixes, consult the labels of the tank-mix partners and observe the largest (most restrictive) buffer zone of the products involved in the tank mixture and apply using the coarsest spray (ASAE) category indicated on the labels for those tank mix partners. The spray drift buffer zones for this product can be modified based on weather conditions and spray equipment configuration by accessing the Buffer Zone Calculator on the Pest Management Regulatory Agency web site.

RESISTANCE MANAGEMENT RECOMMENDATIONS
For resistance management, Starane II is a Group 4 herbicide. Any weed population may contain or develop plants naturally resistant to Starane II and other Group 4 herbicides. The resistant biotypes may dominate the weed population if these herbicides are used repeatedly in the same field. Other resistance mechanisms that are not linked to site of action, but specific for individual chemicals, such as enhanced metabolism, may also exist. Appropriate resistance-management strategies should be followed.
To delay herbicide resistance:
Where possible, rotate the use of Starane II or other Group 4 herbicides with different herbicide groups that control the same weeds in a field.
Use tank mixtures with herbicides from a different group when such use is permitted.
Herbicide use should be based on an IPM program that includes scouting, historical information related to herbicide use and crop rotation, and considers tillage (or other mechanical), cultural, biological and other chemical control practices.
Monitor treated weed populations for resistance development.
Prevent movement of resistant weed seeds to other fields by cleaning harvesting and tillage equipment and planting clean seed.
Contact your local extension specialist or certified crop advisors for any additional pesticide resistance-management and/or integrated weed-management recommendations for specific crops and weed biotypes.

NOTICE TO USER: This pest control product is to be used only in accordance with the directions on the label. It is an offence under the Pest Control Products Act to use this product in a way that is inconsistent with the directions on the label. The user assumes the risk to persons or property that arises from any such use of this product.

Effective
Crops
Spring wheat
BBCH
0 - 0
Registred norm
0.21 - 0.41
Preharvest Interval
60
Crops
Winter wheat
BBCH
0 - 0
Registred norm
0.21 - 0.41
Preharvest Interval
60
Crops
Spring barley
BBCH
0 - 0
Registred norm
0.21 - 0.41
Preharvest Interval
60
Crops
Spring oats
BBCH
0 - 0
Registred norm
0.21 - 0.41
Preharvest Interval
60
Crops
Winter oats
BBCH
0 - 0
Registred norm
0.21 - 0.41
Preharvest Interval
60