5 Horse Care Mistakes During Fly Season (And How to Fix Them)

Fly season turns even the most pleasant summer day into a miserable experience for horses. The constant swatting, stomping, and head-shaking isn't just annoying. It can lead to serious health issues like summer sores, eye infections, and even disease transmission.

Here's the problem: many horse owners make simple mistakes that make fly season worse than it needs to be. Sometimes it's because the advice feels overwhelming. Sometimes it's taking shortcuts that backfire. And sometimes it's just not knowing what you don't know.

At Kensington, we've been shielding horses since 1954. We've seen what works, what doesn't, and which mistakes keep showing up year after year. Let's break down the five most common horse care mistakes during fly season and how to fix them.

Mistake #1: Relying only on fly spray

Fly spray feels like the obvious solution. You spray it on, the flies stay away, problem solved. Right?

Not quite. Fly spray alone is rarely enough for complete protection. Here's why:

• It washes off. Sweat and rain reduce effectiveness quickly. Even "sweat-resistant" formulas have limits.

• Most owners don't use enough. The recommended amount is 1-2 ounces per horse per day. That's roughly four tablespoons. If your horse isn't slightly damp after application, you haven't used enough.

• Chemical resistance builds over time. Flies can develop resistance to active ingredients, making your favorite spray less effective each season.

• It doesn't protect every area. Faces, ears, and legs are hard to spray effectively without causing irritation.

The fix: Integrated Pest Management

Think of fly control as a system, not a single product. The most effective approach combines multiple methods:

• Physical barriers (masks, sheets, boots) provide constant protection without chemicals

• Environmental control (manure management, fly predators) reduces the overall population

• Chemical control (sprays, wipes) targets areas where physical barriers aren't practical

Physical barriers are often more reliable than sprays alone. That's where our Textilene® fabric comes in. Developed specifically for equine protection, it blocks 90% of harmful UV rays while maintaining 78% air permeability. Your horse stays protected and cool.

Mistake #2: Leaving the same fly mask on 24/7

It seems logical. If fly masks protect during the day, why not leave them on at night for continuous protection?

This cancreates more problems than it solves:

• Hygiene issues. Dirt and debris collect in the mesh. When masks get grimy, they can actually harbor bacteria that leads to skin infections around the eyes and face.

• Eye irritation. Dirt that falls into the mesh can drop into your horse's eyes, causing irritation or worse.

• Unnecessary wear. Constant use breaks down materials faster, meaning you replace masks more often.

The fix: Rotate and clean regularly

Create a simple maintenance routine:

• Check fit daily. Look for rubbing, especially around the eyes and ears.

• Clean weekly. Remove excess dirt with a brush or hose. Hand wash with mild soap, then line dry.

• Have a spare. This lets you rotate masks while one is drying.

Our CatchMask® technology makes this easy. The dual-function design works as both a fly mask and a halter, so you can lead your horse without removing protection. And because every Kensington product is backed by a lifetime guarantee, your investment lasts.

Mistake #3: Starting fly control too late

The first warm day arrives. You step outside and suddenly flies are everywhere. So you rush to the tack shop, grab supplies, and start your defense.

Too late. By the time adult flies are swarming, you've already lost weeks of prevention time.

Here's what happens: flies begin breeding when temperatures consistently hit 50°F. A single female can lay up to 150 eggs per batch, and she can produce five or more batches in just a few days. Those eggs hatch into larvae that mature into the adult flies tormenting your horse.

Adult flies are much harder to control than preventing larvae from developing in the first place.

The fix: Start before you see flies

Timing varies by region:

• Southern states (Florida, Georgia, Texas): Start in March

• Midwest and Eastern states (Kentucky, Ohio, Carolinas): Start in April

• Northern states (Colorado, Montana): Start in May

Your early spring checklist should include:

• Manure management plan. Where will you store it? How often will you remove it?

• Standing water elimination. Check troughs, buckets, drainage areas, and slow-moving ditches.

• Fly predators ordered. These tiny parasitic wasps kill fly larvae before they mature.

• Protective gear inspected. Check existing masks, sheets, and boots for wear or damage.

Don't forget that UV protection matters even in spring. The sun is strong enough to damage sensitive eyes and pink skin long before peak summer heat arrives.

Mistake #4: Neglecting manure management

Manure is fly paradise. It's where they eat, breed, and lay eggs. Yet many horse owners underestimate how critical manure management is to fly control.

Consider the math: a single female fly lays up to 150 eggs per batch and can produce multiple batches in days. Now multiply that by the number of flies visiting your manure pile. The population explosion happens fast.

Common problem areas that get overlooked:

• Pasture gates where manure, mud, and hay mix together

• Wash racks that stay damp

• Arena corners where horses congregate

• High-traffic areas around feeders and water sources

The fix: Make manure management daily

Effective manure management isn't complicated, but it requires consistency:

• Clean stalls daily. Use dry bedding and remove wet or soiled material promptly.

• Remove manure weekly. Haul it away or compost it properly. Keep piles as far from barns and pastures as possible.

• Spread strategically. In non-grazing areas, spread manure so it dries quickly. This kills larvae before they mature. (Never spread non-composted manure in grazing areas as it contaminates the pasture.)

• Use moisture control. PDZ or lime in stalls helps control odor and moisture that attracts flies.

Clean horses in clean environments need less chemical intervention. When you reduce the fly population at its source, your physical protection gear works even better because there are simply fewer flies to fight off.

Mistake #5: Ignoring UV protection

Most horse owners think about flies during fly season. Far fewer think about sun damage.

This is a critical oversight. UV exposure causes serious problems for horses, especially those with:

• Pink skin or white markings (particularly on noses)

• Light-colored eyes or blue eyes

• Uveitis or other eye conditions

• Pale coats that sunburn easily

The principle is simple: if you need sunglasses, your horse needs them too.

The fix: Comprehensive UV protection

Don't treat UV protection as an afterthought. Integrate it into your fly management strategy:

• UV-blocking fly masks protect sensitive eyes from sun damage. Look for masks that specifically list UV protection percentages.

• Extended nose coverage shields pink noses from burning.

• Fly sheets with UV protection provide full-body coverage for horses with pale coats or skin sensitivities.

• Year-round awareness. UV damage happens even on cloudy days and outside peak summer months.

Our UViator collection was designed specifically for horses needing medical-grade UV protection. The Textilene® Solar Screen fabric blocks 90% of UV rays while maintaining 78% air permeability. That means your horse stays cool even on the hottest days while receiving protection that can help prevent uveitis flare-ups, sunburned noses, and eye damage.

The Kensington difference: protection that lasts

Fly season comes every year. Cheap gear that falls apart after one season gets expensive fast. Poorly designed masks that rub, sheets that tear, and boots that fail all leave your horse unprotected when they need it most.

We've approached equine protection differently since 1954.

Our Textilene® fabric is manufactured in Alabama, USA, specifically for equine use. It's formulated to withstand fading, fire, mildew, and extreme weather while providing the UV protection and airflow horses need. The 1000 x 2000 Denier construction is supremely durable, which is why we back every product with a lifetime guarantee.

The product ecosystem covers your horse from head to toe:

• Fly masks in multiple styles including standard, extended nose, and our patented CatchMask® halter/mask hybrid

• Fly sheets with optional neck covers for full-body protection

• Fly boots that reduce stomping and protect legs from bites and irritation

When you invest in Kensington protection, you're not just buying gear for this season. You're buying peace of mind that lasts for years.

Ready to stop making these common mistakes? Shop the collection and give your horse the protection they deserve this fly season.

Frequently Asked Questions

What are the most common horse care mistakes during fly season that owners don't realize they're making?

The most common mistakes include relying only on fly spray (instead of using physical barriers), leaving fly masks on 24/7 (which creates safety and hygiene issues), starting fly control too late in the season, neglecting manure management, and ignoring UV protection. Many owners don't realize that prevention is more effective than treatment, and that physical barriers like quality fly masks and sheets often provide better protection than chemicals alone.

How early should I start preparing for horse care during fly season?

Start before temperatures consistently reach 50°F in your region. For southern states, this means March. For the Midwest and East, start in April. Northern states should begin preparations in May. Starting early allows you to implement prevention strategies like manure management, fly predators, and feed-through supplements before the adult fly population explodes.

How much fly spray should I actually be using on my horse during fly season?

The recommended amount is 1-2 ounces per horse per day, which equals approximately 2-4 tablespoons. Your horse's coat should be slightly damp after application, not just misted. Most owners significantly under-apply fly spray, reducing its effectiveness. Remember to apply more frequently if your horse sweats heavily or gets wet, and always brush the spray into the coat for maximum effectiveness.

Why is UV protection important for horse care during fly season?

UV protection is critical because sun damage occurs alongside fly irritation during summer months. Horses with pink skin, white markings, light-colored eyes, or uveitis are especially vulnerable to UV damage. Quality fly masks with UV blocking can prevent eye damage and sunburned noses. The principle is simple: if you need sunglasses, your horse needs UV protection too. Look for masks that block 80% or more of UV rays.

What's the best way to manage manure to reduce flies around my horses during fly season?

Clean stalls daily using dry bedding and remove wet or soiled material promptly. Remove manure from your property weekly, or compost it properly with piles kept far from barns and pastures. Spread manure in non-grazing areas so it dries quickly and kills larvae. Target overlooked areas like pasture gates, wash racks, and arena corners. Using PDZ or lime in stalls helps control moisture and odor that attracts flies.