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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
stress due to abnormal environmental conditions, delay application until stress passes and after both crop and weeds
have resumed active growth. Apply only once per season.
How it Works
Pyrasulfotole is absorbed through leaves and is translocated to meristematic regions where it inhibits the HPPD
enzyme. Pyrasulfotole inhibits plant pigment biosynthesis and photosynthesis.
Expected Results
Small burnt spots on the broadleaf weeds can appear in hours. Lack of plant pigments shuts down the photosynthetic
pathway, resulting in bleaching symptoms and rapid death, normally in 6 - 14 days.
Restrictions
Rainfall
:
Rainfall within 1 hour of application may reduce effectiveness.
Grazing
:
DO NOT graze treated perennial ryegrass, red fescue or bromegrass crops within 7 days of application or
harvest for hay within 30 days of application. DO NOT graze other treated crops or cut for forage or hay within 25
days of application.
Pre-harvest Interval
:
Do not harvest wheat or triticale for grain or straw within 50 days of application. Do not
harvest barley for grain or straw within 45 days of application.
Re-entry
:
Do not enter or allow worker entry into treated areas until 24 hours after application.
Re-cropping
:
Alfalfa, barley, canary seed, canola, flax, (including low linolenic acid varieties) field peas*, tame oats,
spring wheat including durum, potatoes and sunflowers may be planted 10 months after application. Lentils can be
grown 22 months after application. Use a field bioassay for crops not listed above.
*
Field peas may be grown the year following Infinity application in all Black, Gray-Wooded and Dark Brown soil zones. Do not plant
field peas the year following Infinity application in the Brown soil zone where organic matter content is less than 2.5% and soil pH
is above 7.5.
Environmental Precautions
Infinity contains distillates that are toxic to aquatic organisms and non-target terrestrial plants. Avoid contamination
of aquatic systems during applications.
Runoff
:
Avoid contamination of aquatic areas as a result of runoff.
Leaching
:
This product moves in water and is a possible leaching problem in coarse soils or where the water table is
shallow.
Drift
:
Leave a 1 metre buffer between the last spray path and sensitive aquatic or wetland habitats and 5 metres to
non-target plants and upland habitats.
Toxicity
Pyrasulfotole is practically non-toxic to wild mammals, birds, fish and aquatic invertebrates, earthworms and bees
and does not negatively affect soil microorganisms. Infinity is toxic to aquatic plants and non-target terrestrial plants.
Storage
Do not store at temperatures below -20°C. If stored for one year or longer, shake well before using.
Karmex XP/Diurex 80 W
Group 7
Formulation
Product
Company
Active ingredient
Formulation
Container size
Karmex XP (PCP# 21252)
MANA Canada
Diuron: 80%
Dry flowable
2
kg, 25 kg
Diurex 80 W (PCP# 14135)
UAP Canada
WDG
2.27
kg
Infinity (cont’d)