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Product Description

Clear red liquid

Why Use Cyromazine Spray-On

  • IGR (Insect Growth Regulator) for the prevention of blowfly strike on sheep.
  • For the protection of flystrike for up to 6 weeks.
  • Not a treatment for live flystrike.

Withholding Period

  • Meat – 7 days
  • Milk – 35 days
  • Wool – 2 months


60g/L cyromazine

Regulatory Information

  • Agrecovery.
  • EPA approval No HSR001844.
  • Registered pursuant to the ACVM Act 1997, No A011468

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To order this product contact the customer centre and place your order.

0800 100 123


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Product Sizes available

  • 10 L
  • 20 L

Delivery Options

  • Freight to farm
  • Ravensdown pickup point

Important Information


    ​Water-based ready to use spray-on

    For the preventation of flystrike in sheep

    Residual protection for up to 6 weeks


    • DO NOT mix with any other product.

    • Apply through a standard pour-on applicator with a spray-on nozzle, included with our 15mL Multi-Use Gun.
    • Spray on in bands, with the gun held 20cm above the wool during application.
    •Cyromazine Spray-On should be applied to those areas where maximum protection against flystrike is required.

    For the prevention of flystrike at docking: Apply 5-10mL over the crutch, ensuring that sufficient Cyromazine Spray-On is applied to cover the area to be protected (see diagram).

    For the prevention of poll strike: Rams and sheep susceptible to poll strike should be treated. Apply at least 5mL Cyromazine Spray-On to the areas requiring protection, around the poll and horns (see diagram).

    For the protection of all the commonly struck areas: Cyromazine Spray-On applied between the rump and shoulders should be sprayed on in even bands as shown on the label. The product sprayed onto the rump should be applied in an arc. The dose rate and number of bands to be applied are shown in the attached table.


    Do not use on open wounds eg those resulting from marking or mulesing operations.

    If skin or hair contact occurs remove contaminated clothing and flush skin and hair with plenty of running water. If splashed in eyes wash out immediately with water. For advice, or if you feel unwell, contact the National Poisons Centre 0800 POISON (0800 764766) or a doctor immediately. If medical advice is needed, have product container or label at hand


    • Comes with upright draw-off tube assembly.
    • AgRecovery eligible.

    Pack sizes: 20LT & 10LT


    Store in the original container, tightly closed in a cool, dry and locked place away from direct sunlight. Store below 30oC (room temperature). Do not store for prolonged periods in sunlight. Do not reuse the container.


    2 years from date of manufacture.


    Meat withholding
    Animals producing meat and offal  for human consumption must not be sold for slaughter during or within 7 daysof last treatment

    Milk withholding
    Milk intended for sale for human consumption or manufacture must be discarded during treatment and for 35 days following the last treatment

    Wool residues
    Ensure that the time between dipping and subsequent shearing is at least 2 months, except in the case of spot treatment.