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Varro FX Herbicide

New Varro® FX herbicide is a cross-spectrum herbicide with Group 2 and Group 4 active ingredients. It provides control of your toughest grass weeds like Group 1-resistant wild oats and broadleaf weed control boost for cleavers, kochia and more. This is the first Group 2 graminicide with an emulsifiable concentrate (EC) formulation on the market in Western Canada. The EC formulation means Varro FX is easier to mix, handle and provides enhanced coverage for more consistent grass weed control.

Product Summary

Product Type

Herbicide

Crops

Spring Wheat
Winter Wheat

Weeds Controlled (Top 5)

Wild oats
Green foxtail
Yellow foxtail
Barnyard grass
Japanese brome

See All Weeds

Groups & Active Ingredients

Thiencarbazone-methyl (Group 2)
Fluroxypyr (Group 4)

Formulation Type

Emulsifiable Concentrate

Packaging

8.1 L jug = 20 acres
129.6 L drum = 320 acres

Performance Data

Wild Oat Control

% Control
60 65 70 75 80 85 90 95 100
Varro®
92.6%
Varro FX
95.4%
Varro FX + Infinity®
95.1%
Varro FX + Buctril M®
95.1%
Simplicity GoDRI herbicide + OcTTain XL herbicide
94.1%

Source: 13 Bayer Crop Science Internal Trials (2021-2022).
Your results may vary according to agronomic, environmental and pest pressure variables.

Annual Broadleaf Control

% Control
60 65 70 75 80 85 90 95 100
Varro
79.5%
Varro FX
92.8%
Varro FX + Infinity®
95.3%
Varro FX + Buctril M®
96.1%
Simplicity GoDRI herbicide + OcTTain XL herbicide
90.6%

Source: 9 Bayer Crop Science Internal Trials (2021-2022).
Your results may vary according to agronomic, environmental and pest pressure variables.

Wild Oat & Annual Broadleaf Control

Wheat crop with heavy broadleaf and wild oat weed pressure
Varro
0.5 L/ha.
Wheat crop with mild broadleaf and wild oat weed pressure
Varro FX
1 L/ha.
Wheat crop with very low weed pressure
Varro FX
1L/ha. + Thumper® 1L/ha.

Source: Bayer Crop Science Internal Trial (2021).
Your results may vary according to agronomic, environmental and pest pressure variables.

Product Highlights

  • Unique Group 2 EC formulation allows for improved handling, easier tank and boom cleanout, more consistent grass control and eliminates the need for an external surfactant (NIS or AMS)
  • Provides control of your toughest grass weeds like Group 1-resistant wild oats and broadleaf weed control boost for cleavers, kochia and more
  • Tank mixable with an extensive range of broadleaf herbicides such as Buctril M, Thumper, Infinity, MCPA Ester and 2,4-D Ester herbicide
  • Available in two different package sizes to best fit your operation: 20 acre jug or 320 acre bulk drum
  • Flexible re-cropping including in the brown soil zone
  • Registered for both ground and aerial application

Crops

  • Spring Wheat
  • Winter Wheat

Effective Against

Grass Weeds

  • Wild oats
  • Green foxtail
  • Barnyard grass
  • Yellow foxtail²
  • Persian darnel²
  • Volunteer canary seed
  • Japanese brome³

Broadleaf Weeds

  • Cleavers
  • Common chickweed
  • Hemp-nettle
  • Kochia¹
  • Lamb’s quarters
  • Pale smartweed
  • Redroot pigweed
  • Round-leaved mallow²
  • Russian thistle²
  • Shepherd’s purse
  • Stinkweed
  • Stork’s bill²
  • Volunteer canola
  • Volunteer flax¹
  • Wild buckwheat
  • Wild mustard

1 Including biotypes resistant to Group 2 herbicides that inhibit the ALS enzyme.
2 Suppression only.
3 Control of spring-germinated Japanese brome. Suppression of overwintered Japanese brome. Best results are obtained after a pre-seed or burndown application with glyphosate herbicide.
4 Non-ALS tolerant.

Application Rate and Mixing Guidelines

Always read and follow label directions.

Rate

0.4 L/acre (1 L/ha.)

Available in:

jug icon 20 ac./jug

Bulk Packaging - Shuttle 320 ac./drum

Water Volumes

Ground – minimum of 5 US gal./ac. (47 L/ha.)
Aerial – minimum of 3 US gal./ac. (28 L/ha.)

Rainfastness

One hour after application

Tank Mix Instructions

Remember to follow W.A.M.L.E.G.S. for the proper tank-mix order to reduce the likelihood of physical or chemical incompatibility:

  • W – Wettable powders, flowable products
  • A – Agitate
  • M – Microcapsule suspension
  • L – Liquids and solubles
  • E – Emulsifiable concentrates
  • G – High-load glyphosates
  • S – Surfactants

When to Apply

Grass Weeds Growth Stage
Wild oats 1 to 6-leaf stage, up to emergence of the 3rd tiller
Green foxtail
Barnyard grass
Yellow foxtail²
Persian darnel²
Volunteer canary seed 1 to 6-leaf stage, up to emergence of the 2nd tiller
Japanese brome³ 1 to 6-leaf stage
Broadleaf Weeds Growth Stage
Cleavers 1 to 9 whorls
Common chickweed 1 to 4-leaf stage
Hemp-nettle 1 to 6-leaf stage
Kochia¹ 2 to 8-leaf stage
Lamb’s quarters 1 to 6-leaf stage
Pale smartweed 1 to 6-leaf stage
Redroot pigweed 1 to 6-leaf stage
Round-leaved mallow² 1 to 6-leaf stage
Russian thistle² 1 to 6-leaf stage, up to 10 cm tall
Shepherd’s purse 1 to 6-leaf stage
Stinkweed 1 to 6-leaf stage
Stork’s bill² 1 to 8-leaf stage
Volunteer canola⁴ 1 to 6-leaf stage
Volunteer flax¹ 1 to 12 cm tall
Wild buckwheat 1 to 6-leaf stage
Wild mustard 1 to 6-leaf stage

1 Including biotypes resistant to Group 2 herbicides that inhibit the ALS enzyme.
2 Suppression only.
3 Control of spring-germinated Japanese brome. Suppression of overwintered Japanese brome. Best results are obtained after a pre-seed or burndown application with glyphosate herbicide.
4 Non-ALS tolerant.

Storage

  • Heated storage is required

Resistance Management

For resistance management, Varro FX is a Group 2 herbicide. Any weed population may contain or develop plants naturally resistant to Varro FX herbicide and other Group 2 herbicides. The resistant biotypes may dominate the weed population if these herbicides are used repeatedly in the same field. Other resistance mechanisms that are not linked to site of action, but specific to individual chemicals such as enhanced metabolism, may also exist. Appropriate resistance management strategies should be followed.

Contact your local Bayer representative at 1 888-283-6847 for any additional pesticide resistance management and/or integrated weed management recommendations for specific crops and weed biotypes.

Provinces of Registration

  • Alberta
  • Saskatchewan
  • Manitoba
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