Please be aware that this website relies on the use of cookies to function correctly and involves some cookies being downloaded onto your device. This helps us to improve the content of the website so that it is more useful and relevant to you.
Allow cookies — Privacy and Cookies Policy
Elanco logo white 120x60
banner image

Product Information – Crovect™

Treat and control ectoparasites

When looking for wider ectoparasite control, use Crovect™, a synthetic pyrethroid, offering sheep treatment and control options for ticks, biting lice, headflies, and blowfly. Crovect™ can be used for the treatment of tick infestations with a persistent efficacy of 10 weeks.

  • 8 day meat withhold.
  • Contains 1.25% w/v cypermethrin.
  • Prevents blowfly strike for between 6 and 8 weeks.
  • Kills maggots.
  • Up to 10 weeks control of tick infestation.
  • Kills biting lice.
  • Treats and controls headflies.


Application method differs for each target parasite. Correct application is vital to ensure product efficacy.

1. Blowfly prevention:

  • Apply as a fan spray to the surface of the fleece on the shoulders, back and flanks and on the rump.
  • Always use the Crovect™ Pour-On Gun and the FAN SPRAY NOZZLE.
  • For best results ensure that the distance between the gun nozzle and the fleece is approximately 20cm. Crovect™ will prevent blowfly strike only on areas covered by spray.
  • Note Elanco recommends the use of an Insect Growth Regulator (IGR) such as CLiK™, CLiKZiN™ or CLiK™ EXTRA for blowfly prevention as they are narrow spectrum products. Industry recommendations are to always use a narrow spectrum product where possible for the parasite you are looking to treat to avoid potential build up to resistance.
  • One treatment will give 6-8 weeks protection from blowfly strike.

2. Established blowfly strike:

    Apply directly to the affected parts at the rate of 2.5 ml per 100-150cm² (roughly the size of a hand) using the Crovect™ Pour-on gun with the T-BAR NOZZLE.

3. Headfly:

    Apply 5ml to the top of the head between the ears using the Crovect™ Pour-On Gun with T-BAR NOZZLE.

4. Ticks:

    Lambs less than 10kg –give a 5 ml dose followed three weeks later by a 10ml dose. Adult sheep and lambs over 10kg – apply at the rate of 10 ml per 20 kg bodyweight up to a maximum of 40ml. Apply the dose as a pin stream from the crown of the head to the top of the rump using the Crovect™ Pour-On Gun with the STRAIGHT NOZZLE. One treatment will give ten weeks cover.

5. Lice:

    Apply at the rate of 5ml per 20kg up to a maximum of 20ml. Apply the dose as a pin stream from the shoulders to the rumpalong the middle of the backline using the Crovect™ Pour-On Gun with the STRAIGHT NOZZLE.





Find out more about CLiK™

Find out more about CLiKZiN™

Find out more about CLiK™ EXTRA

Crovect-prdpage

Find out more about the CLiK range of products

crovect

Find out more about how to apply Crovect

Sign Up

Sign up to Parasite Matters, our quarterly bulletin providing disease updates through the season, plus be the first to hear about promotions and competitions.

Crovect™ Pour-On for sheep contains 1.25% (w/v) cypermethrin (cis:trans/80:20). For the treatment and control of headflies, tick infestation with a persistent efficacy of 10 weeks (the majority of ticks killed within 3 hours) and treatment of biting lice in sheep. Also for the prevention and treatment of blowfly strike in sheep.
Legal category for all: POM-VPS

Information regarding the side effects, precautions, warnings and contra-indications can be found in product packaging and leaflets; further information can also be found in the Summary of Product Characteristics.

CLiK™ EXTRA, CLiK™, CLiKZiN™, Crovect™, Elanco™ and the diagonal bar™ logo are trademarks of Elanco or its affiliates. Use medicines responsibly (www.noah.co.uk/responsible). Advice should be sought from the prescriber prior to use. PM-UK-19-0172.