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WHY USE CLOBBER?

  • Same active as Lontrel®
  • Superior in-crop Canada thistle control
  • Use in all soil zones
  • Use in many different crops
  • Systemic mode of action for dependable control
  • Flexible rates for different levels of control
  • Wide window of application
  • Excellent crop safety when used alone
  • Extended control of Canada thistle (high rate only)
  • Numerous tank mix options
  • Best in-crop thistle control at the best price

USE ON:

Canola, spring wheat, barley, oats, flax, sugar beets, seeding and established forage grasses, rangeland and non-crop farmland

  • Other crops – see label

RESOURCE CENTRE

LABEL DOWNLOAD
SDS DOWNLOAD
PRODUCT GUIDE DOWNLOAD
PRODUCT SHEET DOWNLOAD

WEEDS CONTROLLED

170 mL/acre:

  • Canada thistle (top growth)
  • Alsike clover

227 mL/acre:

  • Canada thistle
  • Scentless chamomile
  • Wild buckwheat
  • Perennial sow thistle
    (top growth)
  • Common groundsel
  • Common ragweed
  • Sheep sorrel (1)
  • Ox-eye daisy (1)

340 mL/acre:

  • Weeds listed above + Canada thistle (season long control of top growth with a reduction in population the following year)
Refer to label or provincial crop protection guides for additional crop and tank mix specific use rates.
(1) Suppression

GROUP CHEMISTRY

  • Group 4

REQUIRED SURFACTANT

  • None required

ACTIVE INGREDIENT

  • Clopyralid 360 g/L emulsifiable concentrate (EC)

PACKAGE SIZE

  • Cereals or flax: 160 acres/case when mixed with MCPA or 2,4-D
  • Canola: 52 – 105 acres/case
  • see label or provincial crop protection guides for rates by crop, weed, and tank mix partner

WHEN TO APPLY

  • CROP STAGE
  • Canola: 2 to 6 leaf
  • Spring wheat, barley, oats: 3 leaf to early flag
  • Flax: 2 to 6 inches tall
  • Other crops: See label or provincial crop guide
  • WEED STAGE: rosette – pre-bud

WATER VOLUME

  • 10 US gallons/acre (40 L/acre)

RAINFAST PERIOD

  • 4 hours

RE-CROPPING OPTIONS

  • 1 year after application: wheat, barley, canola, rye, sugar beets, flax, mustard, oats, or summerfallow.
  • Do not grow crops other than those listed above for at least 2 years.
  • See label for additional re-cropping information

 

SUPPORTED TANK MIXES*

  • Cereals: 2,4-D, MCPA Amine or Ester, Battlefront®, grass control products.
  • Roundup Ready® canola: Disruptor® 360, 540
  • Clearfield® canola: Ares®
  • Flax only: MPower® MCPA Ester, Independence®
  • See label or provincial crop protection guides for complete list of tank mix options and rates

STORAGE

  • Store away from food, feedstuff, fertilizer, seeds, insecticides, fungicides or other pesticides or herbicides intended to be used on crops sensitive to Clobber. Store in heated storage; if product is frozen, bring to room temperature and agitate before use

GRAZING AND HARVEST

  • Treated areas may be grazed immediately after application

MIXING INSTRUCTIONS

  1. Fill the spray tank 1/2 full of water, begin agitation and continue throughout mixing and application process.
  2. Add the required amount of any dry formulation products.
  3. Add the required amount of grass or broadleaf weed control products.
  4. Add the required amount of Clobber.
  5. Add any required surfactants, complete filling of sprayer and apply.
  6. If application is stopped prior to completion, re-suspend spray solution by full agitation prior to commencing spraying again.

UNDERSTANDING PERFORMANCE

  • Best control will be when temperatures are 12°C – 24°C during warm moist growing conditions.
  • Thistle control is rate dependent. Higher rates will improve control and the highest rate will extend control into the following year.
  • Applications should be made when Canada thistle, perennial sow-thistle and scentless chamomile are in the rosette to pre-bud stage of growth. Best results are obtained when Canada thistle is actively growing, and soil moisture is adequate for rapid growth.
  • Maintain high water volumes for control of wild buckwheat, especially if it is larger stage.
  • Under dry soil conditions and poor growing conditions, control of Canada thistle and other weeds may be severely reduced.
  • Do not make applications to weeds stressed longer than 20 days due to lack of moisture as unsatisfactory control can result.
Always read and observe all label directions including rates, restrictions, and grazing and harvest limitations.
*Supported by AgraCity under PMRA tank mix guidelines. When applying tank mix combinations, read and observe all label directions for each product used in the tank mix, and follow the more stringent label precautionary measures for mixing, loading and applying stated on both product labels.