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Altitude FX® 2 herbicide provides superior weed control for the Clearfield® Production System for wheat, with added flexibility.

  • High level control of grasses including volunteer barley and Group 1-resistant wild oats.
  • Choice of tank-mix partners for broadleaf control flexibility.
  • Wide application crop window.

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Weed Management

Weeds Class List of Weeds
Broadleaf weeds up to 4 leaf stage (except where indicated) Cleavers (1 to 4 whorls)
Cow cockle
Green smartweed (2 to 6 leaf)
Kochia1
Lamb’s quarters2
Redroot pigweed
Round-leaved mallow2
Russian thistle2
Shepherd’s-purse
Stinkweed
Stork’s-bill2 (1 to 8 leaf)
Volunteer canola3
Volunteer flax (1 to 12 cm)
Wild buckwheat2
Wild mustard
Broadleaf weeds controlled with specific, specialty tank-mix partners4 MCPA Ester (northern broadleafs): (apply at 3 leaf)
Chickweed, hemp-nettle

2,4-D Ester (southern broadleafs): (apply at 4 leaf)
Russian thistle, round-leaved mallow

Curtail® M (thistles and perennials): (apply at 3 leaf)
Canada thistle, sow thistle, dandelion
Grassy weeds up to 4 leaf Barnyard grass Foxtail (green, yellow) Japanese brome grass2 Persian darnel Volunteer cereals5 Wild oats

1 Control of Group 2-resistant biotypes.

2 Suppression only. Refer to product label for control with specific tank-mix partner.

3 Volunteer canola and non-Clearfield canola varieties only.

4 See application rate section for individual tank-mix rates.

5 Barley, canary seed, oats, durum, non-Clearfield wheat.

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How it Works

  • Altitude FX 2 tank-mixes are applied post-emergent from the 3 leaf (after first tiller emergence) to 6 leaf stage of the crop.
  • Provides high-level control of grasses including volunteer barley and Group 1-resistant wild oats.
  • A choice of tank-mix partners delivers broadleaf control flexibility, optimized for a growers specific weed pressure.

Application Tips

Rainfastness - 3 hours.

  • Avoid application immediately after a frost or during cold weather.
  • Avoid sprayer overlap to prevent crop injury.
  • Apply to actively growing weeds.

When to Apply

Crops and staging

Clearfield wheat varieties 3 to 6 leaf*

Altitude FX 2 is applied post-emergence from the 3 leaf (after emergence of first tiller) to 6 leaf stage of the crop.

*Note that crop staging can change depending on the tank-mix partner chosen. See the label for details of staging determined by the tank-mix partner.

How Much to Apply

One case will treat 40 acres.
Two separate tank-mix components are included.

Imazamox (a) 67 ml/ac (166 ml/ha)
Fluroxypyr (b) 240 ml/ac (593 ml/ha)


One of the following broadleaf specialty tank-mix partners* must be chosen.

MCPA Ester 600* Northern broadleafs 375 ml/ac (927 ml/ha)
2,4-D Ethylhexyl Ester 700* Southern broadleafs 320 ml/ac (791 ml/ha)
Curtail M* Thistles and perennials 610 to 810 ml/ac (1.5 to 2 L/ha)
Non-ionic surfactant* - 0.25% v/v (e.g. 250 ml per 100 L solution)


Water volume

Gound application only 20 to 40 L/ac (5 to 10 gal/ac)

*Non-ionic surfactant and optional broadleaf partners are not included in the case.

Mixing instructions

  1. Add 3/4 of clean water needed. Use 50 mesh or a coarser filter screen.
  2. Start and continue agitation throughout mixing and spraying.
  3. Add Imazamox solution (a) first and mix thoroughly.
  4. Add all remaining tank-mix partners and mix thoroughly.
  5. Continue agitation and add required amount of non-ionic surfactant.
  6. A silicone anti-foaming agent may be added if needed.
  7. Complete filling the tank to the desired level with water.

Follow Crops

3 months after application
Winter wheat

1 year after application
Canary seed
Canola (incl. Clearfield canola)
Chickpeas
Durum wheat
Field corn
Field peas*
Flax
Lentils (incl. Clearfield lentils)
Spring wheat (incl. Clearfield wheat)
Spring barley
Sunflower (incl. Clearfield Sunflower)
Tame oats

2 years after application
Mustard (condiment type only)

Refer to tank-mix partner’s label for any additional follow-crop restrictions.

*Follow re-crop restrictions on Curtail M label if used as a tank-mix partner.

Pre-harvest interval
79 days after application for wheat grain and straw.

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