Most Popular Feed-Through Fly Control at Corro
Three of the top-purchased equine fly control products at Corro make horse fly treatment simple and effective:
To truly cut down on flies, consistency is key. Choose a fly supplement for horses that fits your horse’s needs, stick with it through the season, and pair it with clean barn habits. That's how lasting horse fly control gets done.
What Causes Fly Problems in Horses?
Flies are more than just a summer nuisance, they cause skin irritation, allergic reactions, and even spread disease. Horse fly protection starts at the source by breaking the breeding cycle in manure using fly repellent supplements for horses.
Horses with skin sensitivities or seasonal allergies often struggle more with fly bites and irritation. If you're seeing both issues, it may help to also look at our respiratory & allergy supplements for extra support.
Corro Team Riders like Josh Tishman (Reining) and Ashlee Bond (International Show Jumping) count on internal horse fly repellant options to avoid constant spraying. Less swatting means more comfort, better focus, and healthier horses all around.
How Feed-Through Fly Control Can Help
A 2012 study in Journal of Economic Entomology found that a single application of granular cyromazine resulted in a 97% drop in adult stable flies coming from winter hay feeding sites. The effect lasted through the fly season.
Another study from the AAEP (American Association of Equine Practitioners) recommends combining manure management, pasture hygiene, and internal fly control tools to reduce fly problems in and around horse facilities.
These findings back up using good internal fly supplements, larval inhibitors like cyromazine, and keeping your stalls and paddocks clean as part of a solid fly plan.
Choosing The Right Feed-Through Fly Control
Equine fly control isn’t one-size-fits-all. Your horse’s daily routine, turnout time, and sensitivity to bites all play a role in what works best. Barn conditions matter, too; more manure means more flies unless you’re ahead of it with a solid plan.
- Everyday horses → Try a daily feed-through with larvicide to break the fly life cycle
- Sensitive or allergic horses → Look for natural formulas with garlic or yeast-based support
- Large barns or shared turnout → Go for feed-throughs designed for herd-wide protection with consistent coverage
If you're also managing things like digestion, joints, or seasonal allergies, you can explore more options in our full supplements collection.
Rider Tips
“I rely on feed-through fly control to cut down on daily sprays, especially when we’re on the road for competitions. It keeps my horses comfortable without the extra hassle.”
- Ashlee Bond, International Show Jumping
“For me, it’s all about consistency. In dry, hot climates, flies show up fast in manure. Internal horse fly prevention helps keep the whole barn under control.”
- Josh Tishman, Reining
Safe, Certified & Backed by Experts
Some horse fly control supplements, like those containing cyromazine, are regulated by the EPA and must meet strict safety standards for use in horse feed. For example, the top-seller Solitude IGR is an EPA-approved feed-through fly product registered for use in horse facilities.
The EPA also evaluates ingredients like cyromazine under federal tolerance regulations to ensure safety for horses and handlers.
At Corro, we only stock fly repellents for horses that meet trusted safety standards and come with clear performance data or manufacturer guarantees, so you can feel confident in every scoop.
FAQ
What is a feed-through fly control supplement?
It’s a supplement added to your horse’s grain that works from the inside out, disrupting the fly life cycle by targeting larvae in manure.
How long does it take for feed-through fly control to work?
Most supplements begin reducing fly numbers within 2 to 4 weeks of consistent daily use.
Is feed-through fly control safe for all horses?
Yes, as long as you follow the dosing instructions. Some formulas are EPA-approved for use in horses.
Can I use feed-throughs with other fly sprays or traps?
Absolutely. Feed-throughs pair well with fly sprays, traps, or even fly collars to build a stronger line of defense.
Do these supplements work on all fly species?
They’re most effective against stable and house flies. For other pests like mosquitoes or biting midges, additional protection may be needed.
Are natural feed-through options available?
Yes, some formulas use ingredients like garlic or yeast to help deter flies through more natural means.
