Canola (including Rape Seed) 
Dan Ball
Revised November 21, 2008
CANOLA—Annual Grass and Some Broadleaf Weeds
•  trifluralin (Treflan)
Rate  0.5 to 1 lb ai/A
Time  Apply preplant and incorporate into soil.
Remarks  Use either liquid or granular formulation. Proper soil preparation and incorporation of trifluralin are critical for best results. Trifluralin is weak on members of the mustard and sunflower families and on volunteer cereals.
Caution  Incorporate within 24 hr of applying. See label for crop rotation restrictions.
Site of action  Group 3: microtubule assembly inhibitor
Chemical family  Dinitroaniline
•  ethalfluralin (Sonalan)
Rate  0.56 to 0.938 lb ai/A (1.5 to 2.5 pints/A Sonalan HFP)
Time  Apply preplant and incorporate by following label instructions.
Caution  Do not exceed labeled rates or crop may be injured. Do not graze crop grown in treated soil. 
Site of action  Group 3: microtubule assembly inhibitor
Chemical family  Dinitroaniline

CANOLA—Annual and Perennial Grasses
Postemergence
•  sethoxydim (Poast)
Rate  0.19 to 0.48 lb ai/A (1 to 2.5 pints/A Poast)
Time  Apply to actively growing grasses listed on label. Add 2 pints/A nonphytotoxic crop oil concentrate for ground application to improve leaf penetration.
Remarks  Ask knowledgeable individuals about susceptible grasses in your area. Control may be erratic on grasses stressed by lack of vigor, drought, or high temperature. Fine fescues and annual bluegrass resist treatment; quackgrass is suppressed.
Caution  Do not exceed 5 pints/A product per year. Preharvest interval is 60 days. Do not mix or apply with any other pesticide, additive, or fertilizer except as label directs.
Site of action  Group 1: acetyl CoA Carboxylase (ACCase) inhibitor
Chemical family  Cyclohexanedione
•  quizalofop P-ethyl  (Assure II, Targa)
Rate  0.03 to 0.08 lb ai/A (5 to 12 fl oz/A Assure II)
Time  Postemergence to grasses. See label for details.
Remarks  Controls both annual and perennial grasses. Always use either a crop oil concentrate at 1 quart/100 gal or a petroleum-based crop oil at 1 gal/100 gal.
Caution  Do not exceed 18 fl oz/A per season. Preharvest interval is 60 days. Do not graze.
Site of action  Group 1: acetyl CoA Carboxylase (ACCase) inhibitor
Chemical family  Aryloxyphenoxy propionate
•  clethodim (Select, Intensity One)
Rate  0.063 to 0.078 lb ai/A (4 to 5 fl oz/A Select 2EC)
Time  After grasses emerge. See label for details.
Remarks  Controls both annual and perennial grasses. Always use a petroleum-based crop oil at 1 gal/100 gal.
Caution  Do not exceed 5 fl oz/A per season. Preharvest interval is 75 days. Do not graze. Do not apply after crop begins bolting. Applying during bloom period may injure crop.
Site of action  Group 1: acetyl CoA Carboxylase (ACCase) inhibitor
Chemical family  Cyclohexanedione
CANOLA—Annual Broadleaf Weeds
Postemergence
•  imazamox (Beyond)
Rate  0.031 lb ai/A (4 fl oz/A Beyond)
Time  Apply early postemergence, but before bloom, only to Clearfield canola. Apply when most actively growing annual grass weeds are in the one- to five-leaf stage. Broadleaf weeds should be actively growing and less than 3 inches tall.
Remarks  Adding a nonionic surfactant and a liquid nitrogen fertilizer or ammonium sulfate solution is required. Occasionally, crop plants may have shortened internodes and/or temporary yellowing after Beyond applications; effects can be more pronounced if crops are growing under environmental stress.
Caution  Use only on Clearfield canola varieties. Do not exceed 4 fl oz/A per season. See product label for crop rotation restrictions. Avoid drift to nontarget crops.
Site of action  Group 2: acetolactate synthase (ALS) inhibitor
Chemical family  Imidazolinone
•  glyphosate (Roundup UltraMAX II, Roundup UltraMax, or Roundup Original Max)
Rate  Single application at 11 to 16 fl oz/A; sequential applications at 11 fl oz/A each
Time  Make single application only to Roundup Ready canola no later than six-leaf stage, to control annual weeds. Apply sequentially on one- to three-leaf Roundup Ready canola followed by a sequential application at a minimum interval of 10 days but not later than the six-leaf stage.
Remarks  Read product label before using any other glyphosate product on Roundup Ready canola. Overlapping at application may result in temporary yellowing, delayed flowering, and/or growth reduction.
Caution  Use only on Roundup Ready canola. Do not exceed two over-the-top broadcast applications from crop emergence through the six-leaf stage. Total in-crop application should not exceed 22 fl oz/A. Do not mix or apply with any other pesticide, additive, or fertilizer except as label directs. Preharvest interval is 60 days. Avoid drift to nontarget crops.
Site of action  Group 9: inhibits EPSP synthase
Chemical family  None generally accepted
•  clopyralid (Stinger, Clopyr Ag)
Rate  0.33 to 0.5 pint/A
Time  Apply to canola in the two- to six-leaf stage of crop growth.
Remarks  Apply uniformly with ground equipment in 10 to 20 gal/A water or at least 5 gal/A by air. To control Canada thistle,apply after most basal leaves emerge but before bud stage.
Caution  Apply only once per crop per year. Preharvest interval is 50 days. See product label for crop rotation restrictions. Avoid drift to nontarget crops.
Site of action  Group 4: synthetic auxin
Chemical family  Pyridine

Camelina (Gold of Pleasure) 
ANDY HULTING
November 7, 2008
CAMELINA—Annual and Perennial Grasses
Oregon only
•  sethoxydim (Poast) 
Rate  0.19 to 0.48 lb ai/A (1 to 2.5 pints/A Poast)
Time  Apply to actively growing grasses listed on label. 
Remarks  Supplemental label  for Camelina (Camelina sativa) or Gold of Pleasure. Ask knowledgeable individuals about susceptible grasses in your area. Control may be erratic on grasses stressed by lack of vigor, drought, or high temperature. Fine fescues and annual bluegrass resist treatment; quackgrass is suppressed.
Caution  Do not exceed 5 pints/A product per year. Preharvest interval is 60 days. Do not mix or apply with any other pesticide, additive, or fertilizer except as label directs.
Site of action  Group 1: acetyl CoA Carboxylase (ACCase) inhibitor
Chemical family  Cyclohexanedione
breakhere