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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Tank mix partners
Crop
Crop stage/comments
Lontrel
Spring, durum wheat and barley
3 - 6
leaf plus 3 tillers
Tilt*
Spring wheat and barley
1 - 6
leaf plus 3 tillers
Decis
Spring, durum wheat and barley
1 - 6
leaf plus 3 tillers
Sevin XLR
Spring, durum wheat and barley
1 - 6
leaf plus 3 tillers
*
Temporary crop injury may be observed when AMS is included for enhanced broadleaf weed control.
Application Information
How to Apply
:
Ground and air. Apply only once per season.
Water volume
: 19
L/acre ground, 11.3L/acre air.
Mixing Instructions
Fill the spray tank ¼ to ½ full with clean water and begin agitation. If mixing with AMS, add to the tank first. Add
the appropriate amount of Tundra herbicide. Fill the spray tank with the balance of water required. Maintain
sufficient agitation throughout mixing and application.
Application Tips
Use higher water volumes under conditions of heavy crop or weed canopies. For best results apply to young, actively
growing weeds. Under cool, dry conditions, activity may be reduced or delayed. Activity may be affected if weeds
are dust covered or covered in heavy dew, mist or rain. Do not apply to a stressed crop but apply after plants resume
normal growth.
How it Works
Tundra is composed of 3 herbicides active ingredients, fenoxaprop-p-ethyl, bromoxynil and pyrasulfotole.
Fenoxaprop-p-ethyl works by contact and systemically. It moves to the roots and shoots and kills the growing point.
Pyrasulfatole is also systemic, inhibiting plant pigment formation and photosynthesis. Bromoxynil is a contact
herbicide, inhibiting respiration and photosynthesis.
Expected Results
Typical symptoms include broadleaf weeds turning brown and dying within 3 - 5 days, reduced grassy leaf growth
and chlorotic blotching within 3 days of application followed by leaf chlorosis and complete death by 2 - 3 weeks
and leaf bleaching .
Restrictions
Rainfall
:
Rainfall within 1 hour of application may reduce effectiveness.
Grazing
:
Do not graze or cut the treated crop for hay within 25 days of application.
Pre-harvest Interval
:
Leave at least 65 days from application to harvest.
Re-cropping
:
The following crops can be grown 10 months after application: alfalfa, barley, canaryseed, canola,
flax, field peas*, oats and wheat (spring and durum), potatoes and sunflowers. 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 Tundra
herbicide application in all Black, Gray-Wooded and Dark Brown soil zones. DO NOT plant field peas the year
following an Infinity herbicide application in the Brown soil zone where organic matter content is below 2.5 % and
where soil pH is above 7.5.
Environmental Precautions
Tundra is toxic to aquatic organisms and non-target terrestrial plants. Leave at least a 15 metre buffer zone around
sensitive terrestrial and aquatic habitats. Avoid contamination of aquatic systems during application. Do not
contaminate these systems through direct application, disposal of waste or cleaning equipment.
Toxicity
Toxic to aquatic organisms and sensitive terrestrial plants. Use of a hand-held backpack sprayer, inter-row hooded
sprayer, spot treatment, soil drench and soil incorporation require no buffer zones. Otherwise, use recommended
buffer zones of 3 - 10 metres when using ground application, 1 - 375 metres by air.
Storage
Store in a heated shed. Do not freeze.
Tundra (cont’d)