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Ascernity - Ireland

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Authorisation Number: 
PCS 05520
Pack size: 
3 litres
Activity Group: 
Dual Systemic
SC Suspension concentrate

ASCERNITY contains difenconazole and benzovindiflupyr for dual systemic activity.
Difenoconazole is a DMI (DeMethylation Inhibitor) or SBI (Sterol Biosynthesis Inhibitor) fungicide (MoA group G1, FRAC code 3)
Benzovindiflupyr is a Succinate DeHydrogenase Inhibitor (SDHI) fungicides (MoA group C2, FRAC code 7). Applications should be made in accordance with FRAG-UK guidelines


A broad spectrum foliar fungicide with both contact and systemic properties for the moderate control of Fusarium Patch (Microdochium nivale), Dollar Spot (Sclerotinia homoeocarpa) and Anthracnose (Colletotrichum graminicola) on golf courses (greens and tees).

Syngenta Ascernity Solatenol Benzovindiflupyr Difenoconazole

Approval for use in Ireland only.

For information on using Ascernity in the UK, please refer to the Ascernity UK listing.

Hazard Statements

  • H302: Harmful if swallowed
  • H319 Causes serious eye irritation
  • H400: Very toxic to aquatic life
  • H410: Very toxic to aquatic life with long lasting effects
  • H332 Harmful if inhaled.

Precautionary Statements

  • P102 Keep out of reach of children.
  • P261 Avoid breathing mist or vapours.
  • P261 Avoid breathing spray.
  • P273 Avoid release to the environment.
  • P280 Wear protective gloves/ protective clothing/ eye protection/face protection.
  • P304+P312 IF INHALED: Call a POISON CENTER or doctor/ physician if you feel unwell.
  • P337+P313 If eye irritation persists: Get medical advice/ attention.
  • P391 Collect spillage.
  • P501 Dispose of contents/container to a licensed hazardous-waste disposal contractor or collection site except for empty triple rinsed clean containers which can be disposed of as non-hazardous waste.

Personal Protective Equipment

  • Eye protection: Tightly fitting safety goggles Always wear eye protection when the potential for inadvertent eye contact with the product cannot be excluded. Use eye protection according to EN 166.
  • Hand protection: No special protective equipment required.
  • Skin and body protection: No special protective equipment required. Select skin and body protection based on the physical job requirements.
  • Respiratory protection: No personal respiratory protective equipment normally required. When workers are facing concentrations above the exposure limit they must use appropriate certified respirators.
  • Protective measures: The use of technical measures should always have priority over the use of personal protective equipment. When selecting personal protective equipment, seek appropriate professional advice

Tank mix preparation

Ascernity may be applied through pedestrian controlled sprayers or vehicle mounted/drawn equipment and hand-held knapsack sprayers. Application equipment should be calibrated before use

Mixing and spraying

Tractor-mounted/trailed sprayers: Make sure the sprayer is set to give an even application at the correct volume and an even deposit. Half fill the spray tank with the required volume of clean water and start agitation. Add the required amount of ASCERNITY to the spray tank. Agitate the mixture thoroughly before use and continue agitation during spraying. Thoroughly wash all spray equipment with water immediately after use.

Hand-held knapsack sprayers: Half fill the spray tank with clean water and add the required quantity of ASCERNITY to the tank. Complete filling, mix thoroughly and use immediately.
Thoroughly wash all spraying equipment immediately after use.

Wash out containers thoroughly, preferably using an integrated pressure rinsing device, or manually rinse three times. Add washings to the sprayer at the time of filling.
Complete filling to the required volume and continue to agitate throughout the spraying operation.

Water volume

125 - 500 litres / hectare
For spot treatments use 30ml per 10 litres per 100 sq metres

Tank mix lifespan

Do not leave the spray liquid in the sprayer for long periods (such as during meal breaks or overnight). Make up only the amount of spray required for immediate use.

Tank mix stability


Type Title Description
To preserve the environment

Prevent spray drift.

To protect aquatic organisms, respect an unsprayed buffer zone to surface water bodies as specified for the crop.
HORIZONTAL BOOM SPRAYERS MUST BE FITTED WITH THREE STAR DRIFT REDUCING TECHNOLOGY for all uses. Low drift spraying equipment must be operated according to the specific conditions stated in the official three star rating
for that equipment as published on HSE Chemicals Regulation Directorate’s website.
Maintain three star operating conditions until 30 m from the top of the bank of any surface water bodies.
Crops/situations with >5m buffer zone:
Since there is a risk to aquatic life from use, direct spray from horizontal boom sprayers must not be allowed to fall within the distance specified for the crop of the top of the bank of any static or flowing waterbody or within 1m of the top of a ditch which is dry at the time of application.
Spray must be aimed away from water.
Buffer zones must be measured in accordance with the guidance set out in the booklet ‘Local Environment Risk Assessment for Pesticides - Horizontal Boom Sprayers’
available from HSE Chemicals Regulation Division’s website and any amendments made to it.
The results of the LERAP must be recorded in written form and must be available for a period of three years for inspection to any person entitled to exercise enforcement powers under or in connection with the Plant Protection Products Regulations 2011 or the Plant Protection Products (Sustainable Use) Regulations 2012. (An electronic record will satisfy the requirement for a written record, providing it is similarly available
for inspection and can be copied).
Do not contaminate water with the product or its container. Do not clean application equipment near surface water. Avoid contamination via drains and amenity areas.

  • In the event of a Toxic or Transport Emergency in the UK please telephone 01484 538 444 at any time

  • Used as a strategic part of an integrated Turf Management plan, ASCERNITY can assure a sustainable long-term future for effective turf disease control.



    • NEW pyrazol-carboximide fungicide technology for turf, combined with NEW high-performance triazole provide two new actives and a new class of chemistry for turf


    • The advanced formulation of ASCERNITY has been designed to create a protective coating on the leaf surface, AND to move evenly through the plant to counter disease already active in the leaf.


    • Balanced systemicity delivers sustained protection throughout the leaf


    • Excellent stability




    • Unlike some systemic actives, ASCERNITY stays evenly distributed through the leaf.


    • The balanced systemicity of ASCERNITY ensures the whole plant leaf remains protected for longer – with sustained disease control.


    • Ascernity effectively blocks the disease cells’ ability to absorb the plant’s sugars – quickly stopping further development and halting disease spread.


    • Two actives and two different modes of action targets disease at different stages for great er flexibility in application timing and control


    • More reliable control of tough diseases


    • Outstanding control of a broad-spectrum of key turf diseases including: Microdochium Patch; Anthracnose; Dollar Spot