Pyranha Stock Guard 10% Permethrin Concentrate - 64 oz

Professional-Grade Fly Control That Protects Your Horses for 30 Days

Stable flies, ticks, and mosquitoes don't just annoy your horses — they carry real health risks like Lyme disease and West Nile virus. Pyranha Stock Guard Concentrate delivers the kind of residual protection serious horse owners rely on, whether you're treating stalls, trailers, or building an automated misting system. This 64 oz bottle creates up to 200 gallons of effective spray, making it the most economical choice for barn managers who refuse to compromise on protection.

Built with a dual-active 10% Permethrin and 10% Piperonyl Butoxide formula, this concentrate bypasses insect resistance and stays effective on surfaces for up to 30 days — even in direct sunlight. It's the go-to for automatic misting systems (one bottle per 55-gallon drum) and for riders who need flexible dilution ratios for everything from grooming sprays to heavy-duty premise treatments.

Why Barn Owners Choose Pyranha Stock Guard

• 30-day residual protection on surfaces — UV-stable formula keeps working on barn walls, ceilings, and trailer interiors long after application, so you're not re-treating every week.
• Dual-active synergy stops resistant pests — 10% Permethrin + 10% PBO prevents flies and mosquitoes from metabolizing the active ingredient, delivering faster knockdown than permethrin-only products.
• Creates up to 200 gallons of spray — One 64 oz bottle dilutes for light maintenance use (1:100 ratio) or stronger premise treatment (1:39 ratio), making it the most cost-effective concentrate on the market.
• Targets the diseases that matter — Kills stable flies, deer ticks (Lyme carriers), and mosquitoes (West Nile/EEE vectors) — the three pests that pose the biggest health threats to your horses.
• Automatic misting system compatible — Perfect for 55-gallon drum systems; one bottle per drum maintains 24/7 fly-free protection in barns and covered arenas.
• Safe for multi-species farms — Use on horses, cattle, sheep, goats, swine, poultry, and dogs over 12 weeks — one product covers your entire operation.

Best For

Barn managers and boarding facility owners looking for long-lasting premise protection that stops disease-carrying pests without weekly re-application.

Frequently Asked Questions

Q: What's the difference between the dilution ratios for horses versus barn surfaces?

For direct application to your horse — whether sponging or spraying during grooming — use 1.28 oz per gallon (1:100 ratio) for safe daily protection. For treating stall walls, trailer interiors, or barn ceilings, use 3.2 oz per gallon (1:39 ratio) to maximize residual control. The stronger premise ratio isn't meant for direct animal contact.

Q: Can I use Pyranha Stock Guard in my automatic misting system?

Absolutely — it's the preferred choice for 55-gallon drum misting systems. Add one 64 oz bottle per drum to maintain continuous fly control. The UV-stable formula won't degrade in lines, and the dual-active synergy ensures pests don't develop resistance over time.

Q: Is this product safe for all animals in my barn?

Pyranha Stock Guard is safe for horses, livestock, and dogs over 12 weeks. However, it contains Permethrin, which is highly toxic to cats. Keep cats out of treated areas during application, and never apply this product directly to feline companions. Once surfaces dry, the risk to cats is significantly reduced.