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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Fall Application
:
Trifluralin can be applied in the fall between September 1 and prior to soil freeze-up for weed
control the following year. Apply fall rates and incorporate twice. The initial incorporation must be done within
24
hours after application. It is preferred to do both incorporations in the fall followed by tillage (5 to 8 cm) in the
spring prior to planting. However, one incorporation may be done in the fall and the second in the spring at the time
of seedbed preparation, provided both operations are done at the recommended depth. Note: Do not apply to stubble
when the previous crop was treated with another trifluralin product (Bonanza, Rival or Treflan). This includes the
application the previous summer or fall.
Rates
Spring Applications
Crop
Soil texture and soil organic matter (%)
Light (sand - sandy loam)
Medium - heavy (loam to clay)
2 - 6%
6 - 15%
2 - 6%
6 - 15%
Field crops: Black beans, crambe, dry beans (field and kidney), faba beans, mustard, peas (field and canning), canola,
safflower, sainfoin, sunflowers
Bonanza EC
0.69
L/acre
0.69
L/acre
0.93
L/acre
0.93
L/acre
Rival EC
0.65
L/acre
0.89
L/acre
0.89
L/acre
0.89 - 1.13
L/acre
Treflan EC
0.69
L/acre
0.93
L/acre
0.93
L/acre
0.93 - 1.21
L/acre
Shelterbelts: American elm, caragana, green ash, Scotch pine and Siberian elm)
Bonanza EC
1.86
L/acre
3.72
L/acre
3.72
L/acre
3.72
L/acre
Rival EC
1.80
L/acre
3.6
L/acre
3.6
L/acre
3.6
L/acre
Treflan EC
1.9
L/acre
3.75
L/acre
Vegetables and berries: strawberries, broccoli, Brussel sprouts, cabbage, cauliflower, carrots, rutabaga, tomatoes
(
transplanted), snap beans, sweetclover, saskatoon
Bonanza EC
0.69
L/acre
0.93
L/acre
0.93
L/acre
0.93 - 1.17
L/acre
Rival EC
0.65
L/acre
0.89
L/acre
0.89
L/acre
0.89
L/acre
Treflan EC
0.69
L/acre
0.93
L/acre
0.93
L/acre
0.93 - 1.21
L/acre
Forage Legumes: Alsike clover, red clover, cicer milkvetch, bird’s-foot trefoil (seed production and forage)
Bonanza EC
0.69
L/acre
0.93
L/acre
0.93
L/acre
0.93
L/acre
Rival EC
Not registered
Not registered
Not registered
Not registered
Treflan EC
0.69
L/acre
0.93
L/acre
0.93
L/acre
0.93
L/acre
For use in canola, peas, sunflower, dry beans, mustard, fababeans, seedling alfalfa and seedling sweet clover
(
spring only)
Products
Soil type
Light soils with < 6% organic matter
Medium to heavy soils with 6-15% organic matter
Bonanza 10G
4.45
kg/acre
5.7 - 6.9
kg/acre
Rival 10G
3.44
kg/acre
4.45 - 5.67
kg/acre
For use in flax or lentils (fall only)
Products
Soil type
Light soils with < 6% organic matter
Medium to heavy soils with 6-15%
organic matter
Sand - sandy loam Loam - clay
Sand - sandy loam Loam - clay
Bonanza 10G
4.45
kg/acre
4.45 - 5.6
kg/acre
5.67
kg/acre
5.67 - 6.88
kg/acre
Rival 10G
4.45
kg/acre
Trifluralin (cont’d)