Canada

Sierra 2.0

Registered until: December 31, 2021
SYNGENTA - herbicide
30430

FOR POSTEMERGENCE APPLICATION ON SPRING WHEAT (INCLUDING DURUM WHEAT) AND WINTER WHEAT FOR CONTROL OF WILD OAT, GREEN FOXTAIL, JAPANESE BROME, VOLUNTEER TAME OAT AND CERTAIN BROADLEAF WEEDS
FOR SALE AND USE IN MANITOBA, SASKATCHEWAN, ALBERTA AND PEACE RIVER REGION OF BRITISH COLUMBIA ONLY

STORE IN A COOL, DRY PLACE

PESTICIDE STORAGE
Store in cool, dry place and in such a manner as to prevent cross contamination with other pesticides, fertilizers, food, or feed. Store in original container and out of reach of children, preferably in a locked storage area.

SPILL CLEAN-UP
Contact the manufacturer and the provincial regulatory agency in case of a spill and for clean-up of spills. Follow safety precautions as directed for handling the product. If the product is clean, it may be used; otherwise, follow the DISPOSAL instructions.

DISPOSAL/DECONTAMINATION
For information on disposal of unused, unwanted product, contact the manufacturer or the provincial regulatory agency. Contact the manufacturer and the provincial regulatory agency in case of a spill, and for clean-up of spills.

CONTAINER DISPOSAL:
For recyclable containers:
Do not reuse this container for any purpose. This is a recyclable container, and is to be disposed of at a container collection site. Contact your local distributor/dealer or municipality for the location of the nearest collection site. Before taking the container to the collection site:
1. Triple- or pressure-rinse the empty container. Add the rinsings to the spray mixture in the tank.
2. Make the empty, rinsed container unsuitable for further use.
If there is no container collection site in your area, dispose of the container in accordance with provincial requirements.
For refillable containers:
For disposal, this container may be returned to the point of purchase (distributor/dealer). It must be refilled by the distributor/dealer with the same product. Do not reuse this container for any other purpose. 

PRODUCT INFORMATION
SIERRA 2.0 Herbicide is a selective herbicide for post-emergence timings in spring wheat (hard red spring, Canada Prairie spring, soft white spring, and extra strong or utility), durum wheat, and winter wheat
SIERRA 2.0 Herbicide applied post-emergence must be tank mixed with a surfactant listed on this label. For broader spectrum activity, SIERRA 2.0 Herbicide may be tank mixed with a broadleaf herbicide listed on this label. See TANK MIXES section for recommended products.
SIERRA 2.0 Herbicide is absorbed by foliage and roots of wild oat, green foxtail and certain broadleaf weeds. These weeds cease growth soon after application, removing the competitive effects of susceptible weeds. However, complete weed control may not be seen for one to two weeks.
SIERRA 2.0 Herbicide will control wild oat biotypes which have developed resistance to ACCase (Group 1) and triallate (Group 8) herbicides. SIERRA 2.0 Herbicide will also control green foxtail biotypes resistant to ACCase (Group 1) and dinitroaniline (Group 3) herbicides.
One 1.937 L jug contains enough SIERRA 2.0 Herbicide to treat 27 to 54 hectares depending on the target weeds to be controlled. For weeds controlled and staging of application for each rate refer to the recommended application tables.

DIRECTIONS FOR USE
General Precautions Read the entire DIRECTIONS FOR USE before using SIERRA 2.0 Herbicide.
Do not mix, load or clean spray equipment within 10 metres of well-heads or aquatic systems, including marshes, ponds, ditches, streams, lakes, etc.
Buffer Zones: Overspray or drift to sensitive habitats should be avoided. A buffer zone of 20 metres is required between the downwind edge of the boom and the closest edge of sensitive terrestrial habitats including forested areas, shelter belts, woodlots, hedgerows, and shrublands. A buffer zone of 35 metres is required between the downwind edge of the boom and the closest edge of sensitive aquatic habitats including sloughs, coulees, ponds, prairie potholes, lakes, rivers, streams, wetlands, and wildlife habitat at the edge of these bodies of water. Do not contaminate these habitats when cleaning and rinsing spray equipment or containers.
Consult the label of the tank mix partners and observe the largest (most restrictive) buffer zone of the products involved in the tank mixture.
Do not apply during periods of dead calm, when winds are gusty or when wind speed is greater than 15 km/h at 2 metres high above ground at the site of application.
Do not apply post-emergence treatments if it is raining or if rainfall is expected within one (1) hour after application.
Do not graze treated fields or use green crop for feed. Wheat grain or straw from harvested treated fields may be fed to livestock.
Do not allow this chemical to drift on to other crops, especially canola, tame oats, or other non target crops.
Observe minimum interval to harvest of 80 days after treatment.
Do not treat wheat underseeded to legumes.
Do not freeze.
Ground Application
Apply alone or in tank mixes in a spray volume of 50 – 100 L/ha (22.5 – 45 L/acre or 5 – 10 gallons/acre) at 207-345 kPa (30-50 PSI) pressure to ensure proper weed coverage.
Flat fan nozzles of 80 or 110 are recommended for optimum coverage. Do not use floodjet nozzle or control droplet application equipment. Nozzles may be oriented 45 forward to enhance crop penetration and to give better weed coverage.
Do not apply during periods of dead calm, when winds are gusty or when wind speed is greater than 15 km/h at 2 metres high above ground at the site of application.
Do not apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE S572.1) medium classification. Boom height must be 60 cm or less above the crop or ground.
Aerial Application
Apply alone or in tank mixes (ONLY with the recommended tank mix partners that are registered for aerial use) in no less than 28 L/ha spray volume at a pressure that delivers medium spray droplets as classified by the ASAE.
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 marking devices.
To reduce drift caused by turbulent wingtip vortices, the nozzle distribution along the spray boom length MUST NOT exceed 65% of the wing- or rotorspan.
Aerial Use Precautions
Apply only when meteorological conditions at the treatment site allow for complete and even crop 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.
Do not apply to terrain where there is potential for surface run off to enter aquatic systems.
Do not apply to any body of water. Avoid drifting of spray onto any body of water or other nontarget areas. Specific buffer zones should be observed.
Do not apply during periods of dead calm. Avoid application of this product when winds are gusty or when wind velocity and direction pose a risk of spray drift.
Do not apply when wind speed is greater than 16 km/h at a flying height at the site of application.
Do not apply with spray droplets smaller than ASAE medium classification.
Aerial 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 pilot (aerial applicator) must wear long-sleeved shirt, long pants, socks and shoes.
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 1-877-964-3682 or obtain technical advice from the distributor or your provincial agricultural representative.

TIMING OF APPLICATION
SIERRA 2.0 Herbicide can be applied post-emergence in all types of spring wheat (including durum wheat).
Research has demonstrated that optimum wheat yield is obtained by early removal of target weeds prior to tillering of wheat. In post-emergence use, apply SIERRA 2.0 Herbicide to wheat that has a minimum of one leaf to a maximum of four leaves on the main stem, plus two tillers. Application beyond this stage may result in yield losses due to weed competition. 

POSTEMERGENCE USE DIRECTIONS IN SPRING AND DURUM WHEAT
Apply SIERRA 2.0 Herbicide plus a surfactant when the majority of wheat has a minimum of one leaf to a maximum of four leaves on the main stem, plus two tillers. Use a registered nonionic surfactant such as AGRAL 90, Ag-Surf, etc. at a rate of 0.25% v/v (0.25 L per 100 L total spray solution).
Do not apply more than 72 mL/ha of SIERRA 2.0 Herbicide (30 g ai/ha) per growing season.

TANK MIXES
For broader spectrum control of both annual grasses and broadleaf weeds, SIERRA 2.0 Herbicide may be mixed with one of the broadleaf herbicides listed in the following tables.
When applied as a tank-mix combination, read and observe all label directions, including rates, restrictions, and grazing limitations for each product used in the tank-mix. Follow the more stringent label precautionary measures for mixing, loading and applying stated on both product labels.
Refer to previous tables for the appropriate rate and application timing for SIERRA 2.0 Herbicide. Use a registered non-ionic surfactant (0.25% v/v or 0.25 L/100 L total spray solution) with SIERRA 2.0 Herbicide tank mixes.

MIXING INSTRUCTIONS
Ensure the spray tank is clean. In-line strainers and nozzle screens should be clean and 50- mesh or coarser.
1. Fill the spray tank 1/3 to 1/2 full with clean water and begin agitation or bypass.
2. Add the appropriate SIERRA 2.0 Herbicide rate directly to the spray tank. Vigorous agitation is required to dissolve the SIERRA 2.0 Herbicide. Maintain sufficient agitation during both mixing and application.
3. Add the broadleaf weed herbicide.
4. Add the surfactant, then complete filling tank with balance of water needed.

SPRAYING INSTRUCTIONS
Ground Application
Unless otherwise specified in the tank mix partner section of this label, apply in a spray volume of 50 – 100 L/ha (22.5 – 45 L/acre or 5 – 10 gallons/acre) at 207-345 kPa (30-50 PSI) pressure to ensure proper weed coverage.
Flat fan nozzles of 80 or 110 are recommended for optimum coverage. Do not use floodjet nozzle or control droplet application equipment. Nozzles may be oriented 45o forward to enhance crop penetration and to give better weed coverage.
Aerial Application
Unless otherwise specified in the tank mix partner section of this label, apply in a spray volume no less than 28 L/ha (11 L/acre or 3 gallons/acre) at no less than 300 kPa pressure to ensure proper weed coverage.
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 nozzles distribution along the spray boom length MUST NOT exceed 65% of the wing or rotorspan.

ROTATIONAL CROPS
The following crops may be planted 11 months after an application of SIERRA 2.0 Herbicide.
Soil Zones and Rotational Crops
Gray-Wooded
Spring wheat
Barley
Canola
Field peas (1)
Black
Spring wheat
Barley
Canola
Field peas (1)
Field bean
Flax
Durum wheat
Dark Brown
Spring wheat
Barley
Canola
Field peas (1)
Flax
Durum wheat
Brown
Spring wheat
(1) Field peas may be grown the year following SIERRA 2.0 Herbicide application providing the following are all met:
1. Soil pH must be below 7.5,
2. Organic matter must be above 4%, and
3. Precipitation must be equal to or above 10 year average (minimum 100 mm within 60 days of application in year of application).

Or, fields can be summerfallowed.
As SIERRA 2.0 Herbicide is degraded by soil microbes, environmental conditions that decrease microbial activity must be considered when making rotational cropping decisions. These environmental conditions include prolonged drought and/or cold temperatures within the following cropping season, as well as soils with both low OM (less than 2%) and high pH (greater than 7.5). If these conditions exist, a soil bioassay may be necessary to ensure rotational crop safety.
Do not plant crops other than those listed above in the year following application of SIERRA 2.0 Herbicide on wheat.

Effective
Crops
Winter wheat
BBCH
0 - 0
Registred norm
36 - 72
Preharvest Interval
-
Crops
Spring wheat
BBCH
0 - 0
Registred norm
36 - 72
Preharvest Interval
-