Herbicides
285
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Application Tips
Do not treat cereals underseeded with forages. For best results, spray when weeds are in the seedling stage and
actively growing. Application before the 4 leaf stage may injure the crop.
How it Works
Bromoxynil is a contact type herbicide; therefore, good spray coverage is essential. Inhibits photosynthesis and plant
respiration. 2,4-D is a hormone type herbicide which causes abnormal growth, affects respiration, food reserves and
cell division in broadleaf plants. Absorbed primarily by leaves and stems and translocated to the growing tips and
roots.
Expected Results
Small burn spots on the leaf can appear within hours; death takes up to 2 weeks.
Restrictions
Rainfall
:
Rainfall within 2 hours of application may reduce weed control.
Grazing
:
Do not graze or harvest for greenfeed until 30 days after treatment. Withdraw meat animals 3 days before
slaughter.
Pre-harvest Intervals
:
Do not harvest within 30 days of application.
Re-cropping
:
There are no re-cropping restrictions the year after application.
Environmental Precautions
Bromoxynil + 2,4-D is toxic to small mammals, birds, aquatic organisms including fish and non-target terrestrial
plants. Avoid contamination of sensitive aquatic and terrestrial systems during application by using appropriate buffer
zones.
Runoff
:
Avoid contamination of aquatic areas by using buffer zones.
Leaching
:
This chemical may leach into groundwater, particularly in areas where soils are permeable (e.g. sandy
soil) and/or depth to the water table is shallow.
Toxicity
High acute toxicity. Acute oral LD
50
(
rats) = 361 mg/kg. Slightly to moderately toxic by contact. Moderately irritating
to skin and severely irritating to eyes.
Storage
Does not require heated storage.
Titanium
Group 1, 4, 6
Formulation
Product
Company Active ingredient
Formulation
Container size
Achieve Liquid (PCP# 27011)
Nufarm
Agriculture
Tralkoxydim: 400 g/L
Emulsifiable concentrate 4 L
Approve (PCP# 28123)
Bromoxynil: 225 g/L + 2,4-D
ester : 225 g/L
10
L
Turbocharge (PCP# 23135)
Surfactant blend: 39.5% Solution
4
L
Crop and Staging
Crop
Staging
Barley, spring wheat (including durum)
4
leaf to early flag leaf
Thumper/Approve/Thrasher/Leader (cont’d)