Herbicides
171
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Crop
Rate
Timing and specific comments
Potatoes
1.11 - 2.22
L/acre
For Idaho Baker, Russett or Burbank and Cherokee, apply up
to ground crack only (potato tops about to emerge). For other
varieties, apply up to time first potato tops have reached 5 to 8
cm in height. Apply in 120 - 220 L/acre of spray solution
Established alfalfa and bird’s-foot trefoil
in hay and pasture
Spray no later than 5 days after first cutting in early June.
Apply in 120 - 220 L/acre of spray solution.
Shelterbelts
2.22
L/acre
Apply as directed spray. Avoid contact with foliage and
plant parts. Apply in 445 L of water/acre or 75 mL in 10 L of
water/100 m
2
. 550
mL of this mixture will treat an area 1.75
metres diameter around a tree. Keep chemical off the tree
foliage.
Registered Tank Mixes
Tank-mix partner
Gramoxone plus
tank mix partner rate
Additional weeds controlled
In potatoes
Lorox
Gramoxone: 1.11 - 2.22 L/acre + Lorox: 0.91 - 1.81 L/acre
Residual control of annual grasses and
broadleaf weeds.
Sencor 500
Gramoxone: 1.11 - 2.22 L/acre + Sencor: 0.45 - 0.71 L/acre
In corn
Aatrex
Gramoxone: 1.11 - 2.22 L/acre + Aatrex: 0.85 - 1.25 L/acre
Dual II Magnum
Gramoxone: 1.11 - 2.22 L/acre + Dual II Magnum: 0.50 - 0.71 L/acre
Application Information
Apply with ground sprayers only. Do not apply by air.
Water volume
: 120 - 445
L/acre. For dense weed growth, use the greater volume of water.
Application Tips
Use only clean water to avoid reduction in effectiveness. Use high volume, low pressure type spraying equipment
to thoroughly cover foliage. Special equipment is necessary to shield some row crops from spray. Applications on
cloudy days or just prior to or during periods of darkness will generally increase the treatment effectiveness. Wash
equipment thoroughly after spraying - use a wetting agent (Agral 90 at 60 mL/100 L of water).
How it Works
Gramoxone is a contact type herbicide; therefore, good spray coverage is essential. It is absorbed by all leaf and stem
surfaces and is non-systemic. It interferes with photosynthesis.
Expected Results
Provides immediate, fast and virtually complete annual weed kill from 1 application. Repeat applications may be
necessary for perennial weeds. Yellowing occurs within a few hours and desiccation of the plant continues rapidly
until death.
Restrictions
Rainfall
:
Rain within 30 minutes and prior to spray solution drying on plant will reduce effectiveness of the
chemical. Once spray solution has dried on plant tissue, rain will not reduce effectiveness.
Grazing
:
Pre-seed burndown in cereals, oilseed and pulse crops: Do not graze or harvest crops within 30 days of
treatment.
Re-cropping
:
No restriction.
Environmental Precautions
This product is toxic to aquatic organisms and terrestrial plants. Observe label buffer zones around aquatic areas and
susceptible terrestrial areas. Do not apply this product directly to aquatic areas.
Gramoxone (cont’d)