Swat Insecticide for Horses 500mL (Brute Equivalent)
Swat Insecticide for Horses is a powerful, ready-to-use treatment formulated to repel and control flies, biting midges, and other nuisance insects. This high-strength, alcohol-free product contains Permethrin—an effective, long-lasting insecticide in an oil-based formula. Designed for weekly application, it provides outstanding residual protection against Buffalo Fly, Stable Fly, House Fly, Sand Flies, and biting midges—the primary culprits of Queensland Itch. Safe, easy to apply, and rain-resistant, Swat is ideal for all horses, including pregnant mares and foals over 12 weeks of age.
Key Features and Benefits
- Contains Permethrin: A potent pyrethroid insecticide for extended protection
- Oil-based formula provides long-lasting residual effect
- Alcohol-free, safe for regular use on horses
- Effective against Buffalo Fly, Stable Fly, House Fly, Sand Flies, and biting midges
- Easy to apply and remains effective after rain
- Recommended for use on pregnant mares and foals over 12 weeks of age
| Product Specification |
|---|
| Volume: 500mL |
| Active Ingredient: Permethrin |
| Formulation: Oil-based, alcohol-free |
| Application Frequency: Weekly |
| Target Insects: Buffalo Fly, Stable Fly, House Fly, Sand Flies, Biting Midges |
| Safe For: Horses, including pregnant mares and foals over 12 weeks |
FAQ
How long does the insecticide last after application?
The product provides long-lasting residual protection, typically effective for up to one week after application, depending on environmental conditions and insect exposure.
Is Swat safe for use on foals?
Yes, Swat is safe for use on foals over 12 weeks of age.
Does the product need to be reapplied after rain?
No, Swat is rain-resistant and maintains its effectiveness after exposure to rain.

Trevor Campbell –
Used Swat on my gelding during the fly season. It significantly reduced biting midges and stable flies. The application is simple and the horse didn’t react negatively. Works well even after light rain. Would recommend for any horse owner in a fly-prone area.
Pippa Jones –
Good product for regular fly control. Applied weekly as recommended. Noticed fewer house flies and sand flies around the stable. The oil-based formula stays on longer than other products I’ve tried. Slight drying on the mane, but not a major issue.
Evan Rampling –
My mare has a history of Queensland Itch. After using Swat regularly, the biting midges have decreased dramatically. It’s easy to apply and the horse seems comfortable. Works well in hot, humid weather with frequent rain.