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Manna Pro Opti-Force Sweat Resistant Fly Spray

Manna Pro Products, LLC


Manna Pro Opti-Force Sweat Resistant Fly Spray repels insects and offers quick knockdown from biting and nuisance flies, gnats, and mosquitos that may transmit West Nile Virus. For use on Horses and Ponies.

Key Benefits

  • Quick Knockdown from Biting and Nuisance Flies: Including Horse, House, Stable, Face, Horn, and Deer.
  • Sweat-Resistant: Fly spray is sweat-resistant and offers 14-day weather-resistant protection.
  • Note: Read instructions carefully before use.
  • Contains 1% cypermethrin.

Directions For Use

Spray or Wipe Application: Application should be liberal for the best results. For the horse's face, always apply as a wipe using a piece of clean, absorbent cloth, toweling (Turkish), or sponge. Avoid getting spray into the horse's eyes, nose, or mouth. Wear rubber glove or mitt when applying as a wipe. Spray or wipe the horse's entire body while brushing against the lay of the coat to ensure adequate coverage.
Reapply every 14 days for fly control normal conditions for initial applications. As protection builds, reapply every 14-17 days. Reapply every 5 to 7 days for mosquito repellency. Also, reapply each time animal is washed thoroughly, particularly if with shampoo or soap.


It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

Not for use on horses intended for human consumption. Cover feed and water prior to treatment. Shake well before using. Avoid contact with eyes or mucous membranes. Harmful if swallowed. Avoid contamination of food. To protect horses and ponies from Horse Flies, House Flies, Stable Flies, Face Flies, Horn Flies, Deer Flies, Gnats, Mosquitoes (Culex spp.): Thoroughly brush the horse's coat prior to application to remove loose dirt and debris. For dirty horses, shampoo and rinse thoroughly. Wait until the coat is completely dry before applying this product. Opti-Force is sweat-and weather-resistant, so it keeps working when the horse sweats, and after rainfall.

Shipping & Returns

  • Important Note: All carriers are experiencing Covid-related delays.
  • Most items ship same or next business day.
  • Free shipping currently on all orders over $49 (Normally $75).
  • View Shipping & Return FAQs here


Active Ingredients

Cypermethrin, CAS #52315-07-8 1.00%
Total 100.00%