Canada

Prestige XC B

registration_expired
Dow AgroSciences - herbicide
29465

GENERAL INFORMATION
Prestige XC Herbicide is a selective postemergence herbicide for the control of broadleaved weeds in spring wheat, durum wheat, winter wheat, spring barley and oats (not underseeded to legumes). Prestige XC Herbicide provides control of hard-to-kill broadleaved weeds such as cleavers, kochia, wild buckwheat, Canada thistle and perennial sow thistle, and suppression of common chickweed and hemp-nettle. The components of Prestige XC Herbicide move within the plant to control exposed and underground plant tissues. It mimics naturally occurring plant hormones which control weeds by disrupting normal plant growth patterns. Symptoms of effect include epinasty (twisting of the stems) and swollen nodes.

GENERAL USE PRECAUTIONS

READ THE ENTIRE LABEL BEFORE USE. FAILURE TO FOLLOW LABEL INSTRUCTIONS MAY RESULT IN ERRATIC WEED CONTROL OR CROP DAMAGE.
As this product is not registered for the control of pests in aquatic systems, DO NOT use to control aquatic pests.
DO NOT APPLY TO CROPS UNDERSEEDED WITH LEGUMES.
Do not use in greenhouses.
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.

To minimize spray drift to non-target areas:

1. Minimize drift by using sufficient spray volume to ensure coverage with ASAE coarse droplet size spray.
2. Keep ground-driven spray booms as low as possible and not exceeding 60 cm above the target surface.
3. Spray when wind is less than 8 km/hr.
Do not spray in dead calm near sensitive plants. The “cloud” of suspended droplets may drift onto sensitive plants when the wind comes up. Spray only when wind is blowing away from a sensitive crop, shelterbelt or garden.

Extreme growing conditions such as:

Drought or near freezing temperatures prior to, at and following time of application may reduce weed control and increase the risk of crop injury at all stages of growth.
Wet foliage at the time of application may result in reduced weed control.
Over-application may result in crop injury.
Make only 1 application per year.
Do not apply through any type of irrigation system.

Sprayer Clean-up

Sprayers used to apply Prestige XC Herbicide should not be used to apply other pesticides to sensitive crops without a thorough cleaning. Do not contaminate irrigation or drinking water, lakes, streams or ponds when cleaning the sprayer. Spray equipment should be cleaned after use by the following procedure:
1. Drain the sprayer tank.
2. Hose down the interior surfaces of the tank. Flush tank, hoses, boom and nozzles with clean water for 10 minutes. Fill the tank with water and recirculate for 15 minutes. Spray part of the mixture through the hoses, boom and nozzles and drain the tank.
3. Remove the nozzles and screens and clean them separately.
4. If the spray equipment will be used on other crops other than cereal crops, repeat 1 and 2 again and thoroughly wash the spray mixture from the outside of the spray tank and the boom.
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 periods 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) coarse 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) coarse 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 rotorspan.

SENSITIVE PLANTS

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

ROTATIONAL CROP RESTRICTIONS

Fields previously treated with Prestige XC Herbicide can be seeded to wheat, barley, oats and rye (not under-seeded to forage legumes, clover or alfalfa), canola, corn, field peas, flax, mustard, or sugar beets can be summer-fallowed. Seed only those crops listed above in the year following treatment. Do not seed to field peas for at least 10 months following treatment. Very dry soil conditions following application can result in a risk of injury to field peas grown in rotation. If severe drought conditions are experienced during the months of June to August inclusive in the year of application, delay seeding field peas an additional 12 months (total 22 months following application). Contact your local Dow AgroSciences Canada representative or retailer for more information before seeding field peas following drought conditions in the previous year.

PRE-HARVEST/GRAZING INTERVALS

 Do not cut or graze treated fields of wheat, barley or oats within 7 days after application.
 Do not harvest wheat, barley or oats within 60 days after application, or within 7 days after application when harvesting for forage.
 Withdraw meat animals from treated fields at least 3 days before slaughter.

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.

DIRECTIONS FOR USE

Prestige XC Herbicide, applied with ground or aerial application equipment (see Application Directions section), will provide wide spectrum broadleaved weed control in spring wheat, durum wheat, winter wheat, spring barley and oats.

DO NOT APPLY TO CROPS UNDERSEEDED WITH LEGUMES.


I. Low Rate: To control the following weeds apply a uniform spray containing 0.31 L/ha of Prestige XC A and 1.5 L/ha of Prestige XC B.
Weeds Controlled
buckwheat wild (1-8 leaf), plantain**, burdock, prickly lettuce, cleavers (1-8 whorls), ragweeds, Canada thistle (low infestations), shepherd's purse, cocklebur, stinkweed, field horsetail**, stork's-bill (1-8 leaf), flax volunteer (1-12 cm), sunflower annual, flixweed (spring seedling 2-4 lf), sunflower volunteer, kochia***, vetch, lamb's-quarters, wild radish, mustard wild

II. High Rate: To control the above weeds plus the following weeds apply a uniform spray containing 0.41 L/ha of Prestige XC A and 2.0 L/ha of Prestige XC B.

Weeds Controlled
buckwheat tartary, mallow round-leaved (1-6 leaf), Canada thistle* (medium to high infestations), pigweed red-root, canola volunteer, pigweed Russian, chickweed common (up to 6 cm)***, scentless chamomile, dandelion (spring rosettes only), smartweed, groundsel common, sowthistle annual, hemp-nettle (2-6 leaf), sowthistle perennial*, stork's-bill (1-8 leaf)

*Season long control, with some regrowth in the fall (top growth control).
**Top growth control only
***Including biotypes resistant to Group 2 herbicides that inhibit the ALS enzyme.

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.

NOTE:
 Prestige XC Herbicide activity is influenced by weather conditions. Optimum activity requires active crop and weed growth. The temperature range for optimum activity is 12C to 24C. Reduced activity will occur when temperatures are below 8C or above 27C. Frost before application (3 days) or shortly after (3 days) may reduce weed control and crop tolerance. Weed control may be reduced during stress conditions, e.g. drought, heat or cold stress, or if weeds have initiated flowering, or if heavy infestations exist.

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 emergence stage. A maximum of 1 application per year.

Mixing Instructions
1. Fill sprayer tank 1/2 full of water.
2. Start sprayer tank agitation.
3. Add the required number of jugs of Prestige XC A.
4. Add the required number of jugs of Prestige XC B.
5. Fill the sprayer tank with sufficient water (see water volumes in Application Directions section). Maintain sufficient agitation in the spray tank during mixing and spraying to ensure a uniform spray mixture.
6. Follow sprayer directions and precautions as outlined above, especially when applying next to sensitive crops (e.g., canola and legumes).
7. Follow sprayer clean-up directions as listed.

APPLICATION DIRECTIONS (GROUND AND AERIAL APPLICATIONS)


(1) Ground Application

Using ground equipment, apply Prestige XC Herbicide alone or with tank mix partners as a broadcast treatment. Apply Prestige XC Herbicide 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 Prestige XC Herbicide alone or tank mixed with a product registered for aerial application as a broadcast treatment. Apply the recommended rates of Prestige XC Herbicide 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 should be laundered 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 MIXES WITH PRESTIGE XC HERBICIDE FOR ANNUAL GRASS CONTROL

Tank mixtures of Prestige XC Herbicide with other herbicides will provide control of additional weeds. Read all precautions, minimal interval to harvest and directions for use on the Prestige XC Herbicide and tank-mix partner labels, and follow the more stringent of the two. DO NOT USE THESE TANK MIXES ON OATS.

Herbicide Tank-mix Partner: Liquid Achieve
Crops Registered: spring wheat, durum wheat, winter wheat, spring barley
Rate of Herbicide Tank-mix Partner: 0.5 L/ha
Adjuvant Rate: Turbocharge 0.5 L/100 L of spray volume (0.5% v/v)
Additional Weeds: green foxtail, wild oats

Herbicide Tank-mix Partner: Horizon Herbicide Tank Mix
Crops Registered: spring wheat, durum wheat
Rate of Herbicide Tank-mix Partner: 230 mL/ha
Adjuvant Rate: Score 0.8 L/ha (0.8% v/v)
Additional Weeds: green foxtail, wild oats

Herbicide Tank-mix Partner: Assert 300 SC
Crops Registered: spring wheat, durum wheat, spring barley
Adjuvant Rate: Refer to Assert 300 SC label
Rate of Herbicide Tank-mix Partner: 1.3 L/ha 
Additional Weeds: wild oats (1-3 leaf)
Rate of Herbicide Tank-mix Partner: 1.6 L/ha
Additional Weeds: wild oats (4 leaf)

Herbicide Tank-mix Partner: Everest 70 WDG or Everest Solupak 70 DF
Crops Registered: spring wheat, durum wheat
Rate of Herbicide Tank-mix Partner: 43 g/ha
Adjuvant Rate: Refer to Everest 70 WDG or Everest Solupak 70 DF label
Additional Weeds:  green foxtail, wild oats

Herbicide Tank-mix Partner: Puma 120 Super
Crops Registered: spring wheat, durum wheat, spring barley
Adjuvant Rate: None required
Rate of Herbicide Tank-mix Partner: 385 mL/ha
Additional Weeds: green foxtail only
Rate of Herbicide Tank-mix Partner: 770 mL/ha
Additional Weeds: green foxtail, wild oats & barnyard grass

Tank mixes with ACHIEVE herbicides may cause temporary injury if applied before the 4-leaf stage, however, yield will not normally be affected.

NOTE TO USER: READ THE FOLLOWING BEFORE USING THIS PRODUCT FOR THE INDICATED SPECIAL USE APPLICATIONS: The DIRECTIONS FOR USE for this product for the use(s) described below were developed by persons other than Dow AgroSciences Canada Inc. and accepted for registration by Health Canada under the User Requested Minor Use Label Expansion program. Dow AgroSciences Canada Inc. itself makes no representation or warranty with respect to performance (efficacy) and/or crop tolerance (phytotoxicity) claims for this product when used on the crop(s) listed below.
Accordingly, the User assumes all risks related to performance and crop tolerance arising, and agree to hold Dow AgroSciences Canada Inc. harmless from any claims based on efficacy and/or phytotoxicity in connection with the use(s) described on this label.

DIRECTIONS FOR USE


SEEDLING AND ESTABLISHED TALL FESCUE GROWN FOR SEED:
 For control of labelled weeds on seedling (4 leaf to flag leaf) or established tall fescue grown for seed. Apply one post-emergent application when weeds are at the 2-4 leaf stage. Ground application only. Do not cut treated fields for hay/forage. Do not graze treated fields.
Application rates (Apply as a tank-mix only): Apply Prestige XC A at a rate of 0.41 L/ha. Apply Prestige XC B at a rate of 2 L/ha.
Apply in a minimum spray volume of 100 L water/ha.

FOR CONTROL OF LABELLED WEEDS IN THE FOLLOWING SEEDLING AND ESTABLISHED FORAGE GRASSES GROWN FOR SEED

Creeping Red Fescue
Intermediate Wheat Grass
Crested Wheat Grass
Meadow Brome Grass
Smooth Brome Grass
Timothy

Apply one application per year in a spray volume of 100-200 L/ha to control labelled weeds in seedling (4 leaf to flag leaf) or established forage grasses. Application should be made postemergence when weeds are in the 2-4 leaf stage. Apply in a broadcast spray using a hydraulic boom ground sprayer.
Application rates (Apply as a tank-mix only): Prestige XC A: 0.41 L/ha; Prestige XC B: 2.0 L/ha.
Do not cut treated fields for hay/forage. Do not graze treated fields. Do not harvest the treated crop within 60 days of application.

LABELLED ANNUAL AND PERENNIAL BROADLEAVED WEEDS IN CANARYSEED (Phalaris canariensis)

For the control of labelled annual and perennial broadleaved weeds in canaryseed (Phalaris canariensis), apply Prestige XC A at a rate of 0.41 L/ha and Prestige XC B at a rate of 2.0 L/ha in a minimum of 100 L of water to thoroughly cover the weeds with a spray pressure of 200 to 275 kPa. Apply when weeds are in the seedling stage (2-4 leaf) and when canaryseed (Phalaris canariensis), is in the 3-leaf stage up to just before the flag leaf emergence stage. Apply using a ground boom sprayer or aerial sprayer, and apply only one post-emergent application per season. Do NOT apply within 60 days of harvest.

Refer to the main Prestige XC Herbicide label for additional details and instructions before using.
READ THE ROTATIONAL CROPPING RESTRICTIONS ON FULL LABEL BEFORE USING THIS PRODUCT.

BUFFER ZONES
Use of the following spray methods or equipment DO NOT require a buffer zone: hand-held or backpack sprayer and spot treatment.
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), sensitive freshwater habitats (such as lakes, rivers, sloughs, ponds, prairie potholes, creeks, marshes, streams, reservoirs and wetlands) and estuarine/marine habitats.

Method of application: Field sprayer

Crop: Spring wheat, durum wheat, winter wheat, spring barley, seedling and established tall fescue grown for seed, seedling and established forage grasses grown for seed, canaryseed
Buffer Zones (metres) Required for the Protection of:
Freshwater Habitat of Depths:
Less than 1 m: 1
Greater than 1 m: 0
Estuarine/Marine Habitats of Depths:
Less than 1 m: 1
Greater than 1 m: 1
Terrestrial habitat: 1

Method of application: Aerial sprayer

Crop: Spring wheat, durum wheat, winter wheat, spring barley, oats, canaryseed (Fixed wing)
Buffer Zones (metres) Required for the Protection of:
Freshwater Habitat of Depths:
Less than 1 m: 4
Greater than 1 m: 0
Estuarine/Marine Habitats of Depths:
Less than 1 m: 1
Greater than 1 m: 1
Terrestrial habitat: 60

Crop: Spring wheat, durum wheat, winter wheat, spring barley, oats, canaryseed (Rotary wing)
Buffer Zones (metres) Required for the Protection of:
Freshwater Habitat of Depths:
Less than 1 m: 1
Greater than 1 m: 0 
Estuarine/Marine Habitats of Depths:
Less than 1 m: 1
Greater than 1 m: 1
Terrestrial habitat: 50

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.

NOTE:
 Applicators may recalculate a site-specific buffer zone by combining information on current weather conditions and spray configuration for the following applications: all airblast applications, and for field and aerial applications which specify the following droplet size category wording on the product label: ‘DO NOT apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE) [Fine or Medium or Coarse] classification.’ To access the Buffer Zone Calculator, please visit the Pest Management Regulatory Agency web site.

RESISTANCE MANAGEMENT RECOMMENDATIONS

For resistance management, Prestige XC Herbicide is a Group 4 herbicide. Any weed population may contain or develop plants naturally resistant to Prestige XC Herbicide 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 Prestige XC Herbicide 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.
For further information or to report suspected resistance, contact Dow AgroSciences Canada Inc. at 1-800-667-3852 or at www.dowagro.ca.

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 any 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 barley
BBCH
0 - 0
Registred norm
1.5 - 2
Preharvest Interval
60
Crops
Spring wheat
BBCH
0 - 0
Registred norm
1.5 - 2
Preharvest Interval
60
Crops
Spring oats
BBCH
0 - 0
Registred norm
1.5 - 2
Preharvest Interval
60
Crops
Winter wheat
BBCH
0 - 0
Registred norm
1.5 - 2
Preharvest Interval
60
Crops
Winter oats
BBCH
0 - 0
Registred norm
1.5 - 2
Preharvest Interval
60