Herbicides
249
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Restrictions
Rainfall
:
Rainfall within 2 hours of application may lessen degree of weed control with Refine M.
Grazing
:
Barley, wheat and oats may be grazed or fed to livestock 7 days after application of Refine M. Do not graze
the treated crop or cut for hay within 7 days of application of Refine SG.
Re-cropping
:
Canola, flax, lentils and alfalfa may be planted 2 months after application of Refine M. There are
no restrictions on next crop year. Note: Do not exceed a total of 12 g/acre per crop year for the Refine SG part of
Refine M.
Environmental Precautions
Refine SG is toxic to aquatic organisms and non-target terrestrial plants. For ground applications, maintain a 15 metre
buffer zone between last spray swath and sensitive terrestial habitats. For aerial applications, leave 1 metre from the
downward edge of the boom and shallow aquatic habitats.
Runoff
:
Avoid contamination of aquatic and sensitive terrestrial areas as a result of runoff.
Observe buffer zones specified under Directions for Use on the label.
Toxicity
Low acute toxicity. Thifensulfuron methyl: Low oral toxicity. Oral LD
50
(
rats) = > 5,000 mg/kg Neither
thifensulfuron methyl nor tribenuron methyl are skin or eye irritants. Tribenuron methyl: Low oral toxicity.
Oral LD
50
(
rats) = > 5,000 mg/kg
MCPA
:
Moderate acute toxicity. Acute oral LD
50
(
rats) = 900 - 1,400 mg/kg. Slightly irritating to the skin and
severely irritating/corrosive to the eye.
Storage
Store in a cool, dry place.
Refine SG
Group 2
Formulation
Product
Company
Active ingredient
Formulation
Container size
Refine SG (PCP# 28285)
E.I. duPont Canada Thifensulfuron methyl: 33.35%
+ tribenuron methyl: 16.65%
Soluble granules
486
grams
One 480 gram package treated 40 acres
Crops and Staging
Crop
Timing
Cereals: Barley, oats, spring wheat, including durum, winter wheat
2
leaf to flag leaf stage
Seedling or established grasses for forages or seed production: meadow bromegrass smooth
bromegrass creeping red fescue, tall fescue (seedling only), Kentucky bluegrass (established
stand only), orchard grass, crested wheatgrass, intermediate wheatgrass, northern wheatgrass,
pubescent wheatgrass, slender wheatgrass, streambank wheatgrass, tall wheatgrass, western
wheatgrass
Apply post-emergence
Refine M/Broadside (cont’d)