Herbicides
213
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Application Tips
Wild oat herbicides require a 4 - 5 day interval before or after an application of Nuance. Effectiveness may be
reduced if spray mixture remains in tank for more than 24 hours. When tank mixed with Assert, apply within 12
hours of mixing.
How it Works
Absorbed by foliage and roots, inhibits cell elongation.
Expected Results
Nuance stops growth of susceptible weeds immediately. However, typical symptoms (discolouration) of dying weeds
may not be noticeable for 1 - 3 weeks after application, depending on growing conditions and weed susceptibility.
Degree of control and duration of effect depend on weed sensitivity, weed size, spray coverage and growing
conditions. Favorable growing conditions following treatment promote the activity of Nuance while cold, dry
conditions delay the activity.
Restrictions
Rainfall
:
Nuance requires 4 - 6 hours of dry weather to be absorbed by weed foliage.
Grazing
:
Do not graze or feed to livestock within 30 days of application.
Re-cropping
:
A minimum of 2 months should be left between the application of this product and harvest or seeding
of the next crop. The following crops can be seeded two months after application: canola, flax, lentils, and alfalfa.
Environmental Precautions
There is no available data on the product itself. However, the product should not be allowed to enter drains or
watercourses or be deposited where it can affect ground or surface waters. The active ingredient, tribenuron-methyl
technical, is considered to be toxic to many plants and non-toxic to fish, aquatic invertebrates, soil micro- and macro-
organisms, birds, mammals and insects.
Toxicity
Low to moderate oral toxicity. Acute oral LD
50
(
rats) = > 2,000 mg/kg. Low to moderate dermal toxicity. May irritate
eyes, nose, throat and skin.
Storage
Store in a cool dry place.
OcTTain XL
Group 4
Formulation
Product
Company
Active ingredient Formulation Container size Acres to treat per
package
OcTTain XL (PCP# 30077)
Dow AgroScience
Canada Inc
Fluroxypyr 90 g/L +
2,4-
D ester: 360 g
EC
2
x 9 L
108
L
576
L bulk
40
acres (case)
240
acres
1280
acres
Crops and Staging
Cereals: 4 - flag leaf stage
Seedling and established grasses (seed production only): 2 - 4 leaf stage
barley
creeping red fescue*
durum wheat
meadow bromegrass*
spring wheat
timothy*
crested wheatgrass*
intermediate
wheatgrass*
smooth bromegrass*
tall fescue*
winter wheat**
*
Registered under the User Requested Minor Use Registration. Dow AgroScience assumes no responsibility with respect to performance and/or crop
tolerance. **Apply to winter wheat in the spring from the 3 tiller stage, to just before the flag leaf stage.
Nuance (cont’d)