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» Products Overview

Prosaro PRO

Prosaro® PRO fungicide sets the standard as the first foliar fungicide registered in Canada to deliver ergot, fusarium head blight and leaf disease protection in wheat, barley, oats and triticale. An effective, multi-mode of action solution with three powerful active ingredients, Prosaro PRO provides exceptional protection in high disease situations. So, when you want to maximize your return on investment, reach for Prosaro PRO.

Prosaro PRO Fungicide Label Prosaro PRO Fungicide SDS Prosaro PRO Techsheet (PDF)
Cereal Crop Protection Guide

Product Summary

Product Type

Fungicide

Crops

Barley
Oats
Triticale
Wheat

Diseases Controlled (top 4)

Blotch (glume, leaf, net, spot)
Powdery mildew
Rusts (leaf, stem, stripe)
Tan spot

See All Diseases

Diseases Suppressed

Ergot
Fusarium head blight

See All Diseases

Groups & Active Ingredients

Fluopyram (Group 7)
Prothioconazole (Group 3)
Tebuconazole (Group 3)

Formulation Type

Suspension Concentrate

Packaging

6.07 L jug = 20 acres
97.17 L drum = 320 acres

Return on Investment (ROI)

ROI Relative to Untreated1

+ $51.77/ac.

Estimated Net Revenue on 160 acres

$8,283

1 Calculation based on

  • 32 Bayer Crop Science Internal Trials (2020) where the untreated check yielded 67.5 bu/ac and Prosaro PRO yielded 73 bu/ac.
  • $13.90 wheat price (for No.1 wheat April 2022)
  • $1 for NIS
  • Prosaro PRO SRP minus maximum 2022 BayerValue™ rebate programming
  • $5/ac. custom application cost

Performance Data

Suppression of Ergot in Cereals

Number of Ergot Bodies per 1kg seed sample
0 15 30 45 60 75 90 105 120
UTC
111.7
Prosaro PRO
36.3

Source: 7 Bayer Crop Science Internal Trials (2019)
Prosaro PRO application included the addition of a Non-Ionic Surfactant
Your results may vary according to agronomic, environmental and pest pressure variables.

Reduction in Deoxynivalenol (DON) Levels in Spring Wheat

DON (ppm)
0 1 2 3 4 5 6 7 8 9
UTC
6.2
Prosaro PRO
3.5

Source: 16 Bayer Crop Science Internal Trials (2019)
Prosaro PRO application included the addition of a Non-Ionic Surfactant
Your results may vary according to agronomic, environmental and pest pressure variables.

Barley Flag Leaves – Net Blotch

Untreated barley leaves exhibiting symptoms of net blotch (leaf has brown lesions surrounded by yellow leaf tissue)
Untreated barley leaf – net blotch
Treated barley leaves with Prosaro PRO + NIS (leaves are a healthy, bright green color throughout)
Prosaro PRO + NIS

Source: Bayer internal trials (Melfort, SK. 2019)
Your results may vary according to agronomic, environmental and pest pressure variables.

Comparison of untreated & Prosaro PRO + NIS treated Wheat

Untreated wheat example (wheat heads show premature bleaching of spikelets)
Untreated Wheat Example
Prosaro PRO + NIS treated wheat example (wheat heads are full and green in color)
Prosaro PRO + NIS treated Wheat Example

Source: Untreated wheat (left), Prosaro PRO + NIS treated wheat (right). Bayer internal trials (Melfort, SK. 2020)
Your results may vary according to agronomic, environmental and pest pressure variables.

Prosaro PRO Performance vs. Prosaro XTR (Medium-High Disease Pressure)

Head Timing (T3) MED-HIGH Disease Pressure

Yield (bu./ac.)
40 45 50 55 60 65 70 75 80
Untreated
65.3
Prosaro XTR
71.4
+6.1 bu.
Prosaro PRO
72.7
+7.4 bu.

Source: 8 Bayer Crop Science Internal Trials (2020)
Your results may vary according to agronomic, environmental and pest pressure variables.

Wheat Yield – Head Timing Application

Yield (bu./ac.)
40 45 50 55 60 65 70 75
Untreated
67.5
Prosaro PRO
73
Miravis® Ace
73.7

Source: 32 Bayer Crop Science Internal Trials (2020)
Prosaro PRO and Miravis® Ace applications each included the addition of a Non-Ionic Surfactant
Your results may vary according to agronomic, environmental and pest pressure variables.

SEE LOCAL TRIAL RESULTS

Product Highlights

  • Prosaro PRO, designed for you, the professional wheat and barley grower who is looking to maximize your return on investment
  • Delivers exceptional protection from fusarium head blight (FHB) and reduces deoxynivalenol (DON)
  • The first foliar fungicide registered in Canada with ergot on the label
  • Provides elite control of all major leaf diseases including blotch (glume, leaf, net, spot), rusts (leaf, stem, stripe) and tan spot
  • A multi-mode of action solution containing three powerful active ingredients: Prothioconazole (Group 3), tebuconazole (Group 3) and fluopyram (Group 7)
  • Delivers a healthy, green crop without impacting maturity
  • Top yielding Bayer cereal fungicide, backed by the Bayer Fungicide ROI Guarantee Program

Crops

  • Barley
  • Oats
  • Triticale
  • Wheat (durum, spring, winter)

Effective Against

  • Ergot*
  • Fusarium head blight*
  • Leaf blotch
  • Leaf rust
  • Net blotch
  • Powdery mildew
  • Scald
  • Septoria leaf blotch
  • Septoria glume blotch
  • Spot blotch
  • Stem rust
  • Stripe rust
  • Tan spot

*Suppression only

Application Rate and Mixing Guidelines

Rate

Prosaro PRO 0.303 L/ac. = 20 ac./jug
NIS at 0.125% vol/vol

NIS Rate Table

Water Volumes

Ground – minimum of 10 US gal./ac. (100 L/ha.)
Aerial – minimum of 5 US gal./ac. (50 L/ha.)

Rainfastness

One hour after application

Tank Mixing Order

  • Add one-half of the required amount of water to the mix tank and start agitation
  • Add the required quantity of Prosaro PRO to the water and complete filling with water to the required total volume
  • Maintain agitation throughout mixing
  • Prosaro PRO is recommended to be used with a registered non-ionic surfactant (NIS), such as Agral® 90 or Ag Surf®, at 0.125% vol/vol. Prosaro PRO should be thoroughly mixed prior to the addition of a NIS. Add the NIS into the tank last after Prosaro PRO and water have been mixed into solution.

When to Apply

Barley: For suppression of fusarium head blight, apply Prosaro PRO as a preventative application from when at least 70% to 100% of the barley stem heads are fully emerged, to 3 days after full head emergence. Application at this timing will also control for leaf disease.

Wheat: For suppression of fusarium head blight, apply Prosaro PRO as a preventative application from when at least 75% of the wheat heads on the main stem are fully emerged to when 50% of the heads on the main stem are in flower. Application at this timing will also control for leaf disease.

Wheat fungicide head timing guide

Start of spray window

Start of spray window - Head is completely exposed but just emerged from the flag leaf.

Head is completely exposed but just emerged from the flag leaf.

Optimal

Optimal badge
Optimal - Head extended up from the flag leaf, first flower visible.

Head extended up from the flag leaf, first flower visible.

Optimal +3 to 5 days

Optimal +3 to 5 days - Head fully flowered/flowers falling off.

Head fully flowered/flowers falling off.

Prosaro Brands
Miravis® Ace

Application window as per the Miravis® Ace and Prosaro® PRO labels
Your results may vary according to agronomic, environmental and disease pressure variables.

Prosaro PRO may be applied sequentially after an application of Folicur® EW or TilMOR® after a minimum of 7 days.

Pre-harvest and re-entry interval

Applications may not be made within 36 days of harvest
Do not allow livestock to graze, or feed green forage to livestock prior to 14 days after application
Straw cut after harvest may be fed or used for bedding
Do not enter treated fields for 24 hours after application

How to Manage Resistance?

It is in everyone’s best interest to preserve the fungicide tools we currently have available to avoid the situation we have with herbicide resistance. It should be noted that there are fundamental differences between herbicide resistance and fungicide resistance. The following three factors need to be considered when assessing if a field is at risk for developing resistance. Assessing your resistance risk includes evaluating the combination of the fungicide mode of action (MOA), the pathogen and the specific farming practices being used.

Evaluating the Risk of Fungicide Resistance

Reports of fungicide resistance in cereal crops are fairly rare in North America. The main pathogens of concern for Canadian growers are all classified as low risk, including such diseases as fusarium and rusts. Additionally, agronomic and environmental conditions, which strongly influence resistance risk in Canadian provinces, are regarded as low.

Read more about fungicide resistance risk and management

Provinces of Registration

  • Alberta
  • British Columbia
  • Manitoba
  • New Brunswick
  • Newfoundland and Labrador
  • Nova Scotia
  • Ontario
  • Prince Edward Island
  • Quebec
  • Saskatchewan
Map of Canada showing the registered provinces

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