🔥 Launch offer closes in --:--:-- · 63 of 200 spots left

Get her through September without a single new welt.

In 14 days — without a fly sheet, a mask, or a single chemical. Because the flies were never coming from the manure.

An owner standing with her horse in a paddock
Why this, why now

Does this summer feel familiar?

You don't need anyone to describe her to you. You've been watching her since June.

A nearly empty fly spray bottle

Dead by noon

You spray at seven. By lunch they're back on her and you're reaching for the bottle again.

A rubbed-out mane

The mane keeps going

She rubs the fence rail raw, and every year it comes back thinner than the last.

A shelf of half-used fly sprays

A shelf of bottles

Six of them. Two hundred dollars a season, every season. Not one of them held.

A wheelbarrow in a picked-clean paddock

A yard you pick daily

You muck it religiously. The flies never cared. Now you know why.

What the bottle does

1
fly. For about four hours. On the part of her you sprayed.

What's actually happening

80–100
eggs from one female, hatching on a 28-day loop, all season long.

You never lost because you picked the wrong spray.
You lost on arithmetic.

The solution

It was never the manure.

Stable flies don't breed in fresh manure. They never have. They need wet, rotting plant matter — and there are exactly four places in your paddock where that sits.

You've been cleaning the wrong thing. Carefully. For years.

1 Soaked bedding under the feeder

Under the feeder

Bedding soaked with urine, gone black underneath. The one nobody lifts.

2 Spilled feed rotting at the feeder edge

The feeder edge

Dropped grain and chaff, damp and going mouldy where she spills it.

3 The rotting bottom edge of a hay bale

The bale's bottom edge

Where the hay meets the ground and stays wet. Dark, matted, warm.

4 Mud around an overflowing trough

Around the trough

Churned mud and standing water from every refill that overflowed.

🚫

And not the manure pile. Fresh manure is too hot and too dry for them — it's the one place in the yard they can't use, and it's the only one you've been cleaning.

Dry them once and you don't kill the flies.
You end the generation.

Eggs can't reach pupa without moisture. Take the water out of those four spots and the whole batch dies where it lies — and the next batch has nowhere to be laid.

Egg to adult — 28 days
One female lays 80–100 eggs. Break the chain once and the whole generation is gone.
🥚
Egg
DAY 0
Laid in wet, rotting plant matter.
🐛
Larva
DAYS 1–12
Feeds in the damp. Needs moisture to survive.
🟤
Pupa
DAYS 13–20
Hardened off. By now you can't touch it.
🪰
Adult
DAY 28
On her neck — and laying again in two days.
DRY IT HERE

Take the water out anywhere in those first twelve days and the larvae never reach pupa. You don't kill the flies. The batch never becomes flies.

28 days at 70°Fas few as 12 at 90°F

And for the fourteen days in between, the spray you mix yourself.

Every homemade recipe on the internet flashes off in twenty minutes, because nothing in it holds the oils to her coat. Ours has the fixative, at the ratio the entomology literature actually measured, mixed in the order that keeps it from separating.

A few dollars a gallon. And by week three you're not mixing it as often, because there's less coming at her.

Show Me The Four Spots → INSTANT DOWNLOAD · TAXES INCLUDED
What happens

We're not going to tell you what you'll get.

Here it is, in their words.

Message thread from a customer
Message thread from a customer
Message thread from a customer
Message thread from a customer

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What lands in your inbox

Four printed pieces and the recipe.
$141 of value for $27.

The wet ground under a feeder
★ The core

The Source Map

The four spots, drawn on a paddock that looks like yours, plus how to find yours in a single ten-minute walk and exactly what to do with each one. Print it and put it on the tack room wall.

Value $47
Included

The 14-Day Cover

Base formula plus three variants, the fixative ratio, the mixing order that stops it separating, the 24-hour rest test, and the equine-safe oil table with dilutions, patch test and the popular oils to keep away from horses. Shopping list with cost per gallon.

Value $29
The homemade spray mixed in the tack room
The calendar taped to the tack room door
Included

The Hatch Calendar

What to do and when, adjusted for your temperature — because heat drops the cycle from 28 days to as few as 12 and moves every date on the page.

Value $19
Included

The Second Line

Parasitic wasps, traps, fans and physical barriers. What each one actually does, the order to add them in, and the two that are a waste of your money.

Value $29
Fly trap and fan in the barn aisle
A filled-in tracking sheet
Included

The Proof Sheet

Printable tracking sheets. Ten minutes, once a week, one number. This is also what the guarantee runs on — so it's the one page you actually have to use.

Value $17
THE DRY LINE SYSTEM
The map + 4 tools · Lifetime access
The Source Map$47
The 14-Day Cover$29
The Hatch Calendar$19
The Second Line$29
The Proof Sheet$17
Total value$141
$27
One time. Instant download. Yours to keep.
Launch pricing — 63 of 200 spots left, then it goes to $47.
GET INSTANT ACCESS SECURE CHECKOUT · TAXES INCLUDED
60-day money-back guarantee. You keep everything either way.
🛡️

Do the count. If the number doesn't move,
you keep it anyway.

Run the ten-minute count before you start, and again on day fourteen. If that number hasn't come down, write to us and you get your $27 back — and you keep every file. You have sixty days.

We can say that because the count isn't our opinion. It's yours.

The honest questions, answered.

How do I get it?

By email, the second you pay. PDFs you can print for the tack room or keep on your phone.

I board. Can I still use this?

Yes. Three of the four spots are inside your own stall and paddock, and the recipe is yours regardless of whose land it is. There's a page on how to raise the fourth with the barn owner without it becoming a thing.

Is the recipe safe for my horse?

Every oil is listed with its dilution and a patch test. The table also tells you which popular oils to keep away from horses — several well-known blends use them.

Do I still need the spray I have?

For the first two weeks, yes. That's exactly what the recipe is for. After that the whole point is that you stop needing it.

It's nearly the end of the season. Why now?

Because they overwinter as larvae in the same wet material. What you dry in September decides how many are waiting for you in May.

Is this a subscription?

No. Twenty-seven dollars, once. Nothing renews.

This September, instead of another bottle,
dry the four spots.

Ten minutes to find them. Fourteen days to watch the count fall.

Get The Dry Line System → INSTANT DOWNLOAD · 60-DAY GUARANTEE