160
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Application Information
With
:
Ground equipment only. With a sprayer that can apply 40 L/acre of spray solution. Do not apply by air.
Water Volume
: 40
L/acre.
Mixing Instructions
Only use sprayers that have good agitation. Ensure the sprayer is properly cleaned prior to adding Frontline 2,4-D.
Use mixing instructions “b” on page 13.
Application Tips
Do not apply to crops underseeded to legumes. Apply Frontline 2,4-D early post-emergence to the main flush of
broadleaf weeds. Warm, moist conditions that promote active weed growth, small weed size, competitive crop and
good growing conditions after application optimize weed control. Weeds hardened off by cold weather or drought
stress may not be adequately controlled or suppressed, and re-growth may occur. For best results, ensure adequate
spray coverage of the target weeds. Only weeds that are emerged at time of application will be controlled. If the
foliage of the weed is wet at the time of application, control may be reduced.
How it Works
Florasulam SC is taken up by leaves and stops growth of susceptible weeds rapidly via inhibition of the ALS enzyme.
2,4-
D is a systemic, non-selective herbicide, which readily moves through the foliage and root system. It inhibits
pigment, including chlorophyll, leading to plant death.
Expected Results
Florasulam A symptoms will initially appear in the upper regions of the plant. Newer leaves start to yellow and wilt,
followed by a loss of green colour. Symptoms will spread to the rest of the plant with some weeds showing purpling
or reddening. Under ideal conditions, complete control may occur within 7 - 10 days after application. Plants
susceptible to 2,4-D will become malformed before they die.
Restrictions
Rainfall
:
Do not apply if rainfall is expected within 2 hours.
Grazing
:
Do not harvest as forage within 30 days after application. Do not permit lactating dairy animals to graze
fields within 7 days after application. Withdraw meat animals from treated fields at least 3 days before slaughter.
Pre-harvest Interval
:
Do not harvest the treated mature crop within 60 days after application.
Re-cropping
:
Fields previously treated with Frontline 2,4-D tank mix can be seeded the following year to barley,
canola, oats, peas, wheat, or fields can be summerfallowed.
Environmental Precautions
Frontline 2, 4-D is moderately to highly toxic to aquatic organisms. Avoid contamination of aquatic systems during
application. This product has potential to leach. Do not apply excessive irrigation.
Drift
:
Overspray or drift to sensitive habitats should be avoided. A buffer zone of 30 metres is required between
the downwind edge of the boom and the closest edge of sensitive terrestrial habitats including forested areas, shelter
belts, woodlots, hedgerows, and shrublands. A buffer zone of 5 metres is required between the downwind edge of the
boom and the closest edge of sensitive aquatic habitats.
Toxicity
2,4-
D A is highly toxic to aquatic organisms. It is also slightly toxic to birds. 2, 4-D B has a moderate acute
mammalian toxicity. Acute oral LD
50
(
rats) 982 mg/kg. It can cause skin irritation and can be absorbed through the
skin.
Storage
Store in dry, heated storage. If products are frozen, bring to room temperature and agitate before use.
Frontline 2,4-D XC (cont’d)