Fly Gear 101: Masks, Sheets and Sprays | LV Tack

Fly Gear 101: Masks, Sprays, Sheets and Summer Barn Basics | LV Tack
  

Why Fly Control Matters 

If you've ever watched your horse stomp, head-shake, or run frantic circles around the paddock in July, you already know: flies are more than just a nuisance. They're a real welfare issue. Persistent fly pressure causes stress, disrupts grazing and sleep, creates open wounds from stomping and rubbing, and can transmit diseases like equine infectious anemia and pigeon fever. A horse that can't rest because of flies loses weight, drops topline, and shows up to work already exhausted.

Good horse fly gear isn't a luxury — it's basic summer management. The good news is that with the right combination of products and habits, you can dramatically reduce your horse's fly burden without spending every spare minute swatting. This guide walks you through everything: masks, sheets, sprays, barn tactics, and how to pull it all together into a routine that sticks. Browse our full Fly Gear collection to see everything we carry for the season.

Fly Masks: What to Look For

A fly mask is usually the first piece of fly gear most horse owners buy — and for good reason. The eyes and face are prime targets for face flies, which feed on secretions and can cause significant irritation and eye infections. A well-fitted mask blocks flies without restricting vision or causing rubs.

When you're shopping for a fly mask, here's what actually matters:

• Fit: The mask should sit close to the face without pressing on the eyes. Too loose and it rubs; too tight and it restricts circulation. Look for masks with contoured eye cups that hold the mesh away from the eyeball itself.
• Mesh density: Finer mesh blocks more insects but also reduces airflow. In extreme heat, find a balance — some masks offer UV-blocking mesh that does double duty.
• Ear coverage: If your horse is bothered by gnats and ear insects (common in the Northeast), choose a mask with ear covers. Some horses hate them initially but come around quickly when they realize how much better they feel.
• Nose flap: For horses with sensitive muzzles or those in heavy bot fly country, a nose flap extension provides extra coverage.
• Closure: Velcro closures are standard and work well. Make sure the closure sits away from the eyes to prevent accidental scratching.

Check the mask daily. They shift, get saturated with sweat and debris, and can become a source of irritation themselves if left on without inspection. Most quality masks last one to two seasons with regular washing.

Fly Sheets: Do Horses Really Need Them? 

This is one of the most common questions we hear, especially from newer horse owners who worry about their horses overheating under a sheet in summer. The short answer: a good fly sheet actually keeps a horse cooler than standing unprotected in the sun while being harassed by flies.

Here's the logic. A horse that's constantly stomping, swishing, and moving to escape flies is generating body heat and burning calories. A well-ventilated fly sheet made from open-weave mesh blocks insects and UV rays while allowing airflow across the skin. Many horses in sheets are visibly calmer, stand quietly, graze longer, and maintain better body condition over the summer.

What to look for in a fly sheet:

• Breathable mesh: Avoid anything that traps heat. Quality fly sheets use open, airy weaves specifically designed for warm-weather wear.
• UV protection: A UPF-rated fly sheet helps preserve coat color, especially on gray, chestnut, and black horses who are prone to bleaching.
• Belly band: Flies are relentless about the underbelly and sheath area. A sheet with a belly wrap offers significantly better coverage.
• Neck cover:  Optional, but helpful for horses in high-insect environments. A neck cover can be attached or detached as needed.
• Proper fit: Measure your horse carefully. A sheet that's too short rides up and causes rubs along the shoulders and withers. Too long and it drags, trips the horse, or catches on fencing.

Fly sheets do need regular washing. A sheet caked in dirt and dried sweat loses breathability and can cause skin irritation. Aim to wash once a week or more during peak season.

Fly Spray: Choosing the Right Formula 

Fly spray is the most immediate line of defense — and arguably the most variable. Walk into any tack shop and you'll find dozens of options. They break down into a few main categories:

• Pyrethrin/pyrethroid-based sprays: These are the most common and fastest-acting. Pyrethrins come from chrysanthemum plants; pyrethroids are synthetic versions. They're effective against a broad range of insects but break down relatively quickly, especially in heat and sunlight. Expect to reapply every 1–3 days.
• Permethrin-based sprays: A specific pyrethroid that offers longer residual activity. Often used as a premise spray as well as a topical. Note that permethrin is highly toxic to cats — keep them away from treated horses until the product has fully dried.
• Natural/plant-based sprays: Formulas using citronella, cedar, eucalyptus, or neem oil appeal to owners who want to minimize chemical exposure. Effectiveness varies and reapplication is typically more frequent, but they're a solid option for horses with sensitivities or for everyday use between stronger applications.
• Wipe-on formulas: Great for faces where you can't safely spray. Apply to a cloth or grooming mitt and wipe around the eyes, ears, and muzzle.

A few tips for better results: Always apply to a clean, dry coat — sweat and dirt reduce adhesion. Spray against the direction of hair growth for better coverage. Reapply after rain or heavy sweating. And rotate formulas occasionally; flies can develop behavioral resistance to the same scent over time.

Barn Fly Control Beyond Products 

No matter how good your horse fly gear is, if your barn environment is a fly breeding ground, you're fighting uphill. Flies breed in moist organic matter — manure, wet bedding, spilled feed, and compost. Controlling breeding sites is just as important as treating individual horses.

• Manure management: Remove manure from stalls daily and from paddocks as frequently as possible. Store manure piles away from the barn and ideally compost them actively — a hot, turning compost pile kills fly larvae far more effectively than a cold, static pile.
• Dry bedding: Wet stalls are fly nurseries. Keep bedding deep and dry; strip stalls fully at least once a week.
• Parasitic wasps: These tiny, non-stinging wasps lay their eggs in fly pupae, breaking the life cycle naturally. Ordered by mail and released weekly or biweekly during fly season, they're one of the most effective long-term controls available. They work best in combination with other methods.
• Fly traps and sticky tape: Useful for catching adult flies, especially near feed rooms and stall doors. Won't eliminate a heavy population on their own but reduce numbers meaningfully.
• Automatic misting systems: For larger barns, timed insecticide misters installed in the barn ceiling can provide significant relief. They're an investment but pay off quickly in horse comfort and staff sanity.

Building Your Fly Control Routine 

The horses that come through summer in the best shape are usually the ones whose owners treat fly control as a system — not a series of last-minute responses. Here's a simple layered approach that works well in the mid-Atlantic region:

• Every morning: Apply fly mask before turnout. Check for rubs or damage. Apply fly spray to exposed areas if the horse isn't wearing a sheet.
• During grooming: Remove the mask, inspect around the eyes for discharge or irritation, clean the mask mesh, then reapply.
• Turnout routine: Fly sheet on for horses in high-pest paddocks. Make sure the sheet fits properly every time — weight fluctuations change how a sheet sits.
• Weekly: Wash fly masks and sheets. Check for wear and damage. Restock sprays and wipes before you run out.
• Monthly: Release parasitic wasps if you're using them. Check manure pile management. Assess whether your current products are still doing their job or whether it's time to try a different formula.

The goal is to reduce your horse's total fly exposure across the day — not just during the hours you're at the barn. A layered system handles both.

Don't forget to protect yourself, too. Long days at the barn mean sun and insect exposure for riders as well. Check out our Sun Shirts & Base Layers for lightweight UPF options that keep you covered without overheating.

Shop Fly Gear at LV Tack

LV Tack carries a carefully curated selection of fly control products from the brands our customers trust — all available to ship directly to your door. Whether you're building out your fly control kit for the first time or replacing worn-out gear before peak season hits, we've got you covered.

Start with our Fly Gear collection for fly masks, fly sheets, sprays, and more. For grooming tools, coat supplements, and other warm-weather horse management essentials, browse our Horse Care collection.

Questions about what's right for your horse? We're a small, woman-owned shop run by people who ride — reach out anytime. We're happy to help you put together the right kit for your situation.