Introduction

156
Weeds, Rates and Staging:
Apply to weeds when young and actively growing.
Weeds Controlled
Rate*(g ai per acre)
Alsike clover
Canada thistle (top growth only) † Vetch (Vicia spp.) 61
Canada thistle** †
Common groundsel
Common ragweed
Knapweed (spotted and diffuse) Δ
Ox-eye daisy (suppression)
Perennial sow-thistle (top growth only)
Canada thistle** †
Ox-eye daisy
Scentless chamomile
Sheep sorrel (suppression)
Volunteer alfalfa - 2 to 20 inches
(5 to 50 cm) tall
Wild buckwheat
Sheep sorrel 121
Δ
Lontrel Only
†
Canada thistle - after all thistles have emerged and when the majority are in the rosette to pre-bud stage;
* Provides season long control of Canada thistle. Not all root stalks will be killed and some regrowth may occur by the
end of the growing season.
** Provides season long control of Canada thistle with suppression into the following year.
Application Information:
• Water Volume: 40 to 89 L per acre.
• Nozzles and Pressure: Maximum 30 to 40 psi (200 to 275 kPa) with conventional flat fan nozzles. Low drift nozzles
may require higher pressures for proper performance. Use nozzles and pressures designed to deliver thorough, even
coverage with ASABE coarse droplets.
How it Works:
Refer to Table 9 on page 48.
Effects of Growing Conditions:
Poor control may occur under dry conditions. Injury to flax may occur when tank mixing with MCPA. To reduce the risk of
crop injury, DO NOT apply tank mixes if temperature exceeds 27 o C.
Tank Mixes:
Herbicides:
Clopyralid applications following applications of products containing bromoxynil (Approve, Badge, Bromotril, Buctril M,
Enforcer, Koril, Logic M, Mextrol, Pardner, Thumper) should be delayed by 14 days to allow the Canada thistle to recover from
leaf burn.
Recommended rates of clopyralid may be used for each crop unless otherwise indicated. Tank mix partners applied at all
label rates and include recommended adjuvants unless otherwise noted.
Herbicides
Crop (rate g ai per acre – if different from label rates range above)
Canola Flax Barley Spring
Wheat
(Not durum)
Poast Ultra (61 to 121) (61 to 121) - - -
Select (61 to 121) (82 to 121) - - -
Glyphosate (glyphosate tolerant canola only) (41) - - - -
Odyssey (CLEARFIELD canola only) (61 to 82) - - - -
2,4-D ester or amine (170 to 227 gae per acre) - - (41 to 61) (41 to 61) -
82
Oats