Champion USA JustiFLY Feedthrough Cattle Fly Control, Single | Non-Toxic Larvicide. Controls All Four Fly Species That Affect Cattle. Over 50 Million Head Treated
$21.15
Price: $21.15
(as of Oct 15, 2025 01:44:04 UTC – Details)
1 Add-Pack treats 50 lb. of free-choice minerals. 6 Add-Packs treat 300lb. of free-choice minerals.
JustiFLY Feedthrough in a convenient 360gram add-pack for use on-farm
The economically priced 360-gram add-pack treats one 50-lb. bag of free choice mineral
Breaks the life cycle of horn fly, stable fly, house fly and face fly for pennies per head/day
Reduces animal-handling stress. No withdrawal period. No residues. No resistance issues
On average, each add-pack of 360gram (12.7oz) treats 1 animal for 12 months (6 pack = 18 animals for 120 days)
Customers say
Customers find the fly control product effective, with one mentioning no flies on manure in pasture. They also appreciate its quality, with one customer noting it performs better than sprays and fly rubs.
8 reviews for Champion USA JustiFLY Feedthrough Cattle Fly Control, Single | Non-Toxic Larvicide. Controls All Four Fly Species That Affect Cattle. Over 50 Million Head Treated
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$21.15
Teresa Boyer –
Worked well
Easy to use and worked well
TMR –
Great
Just mix with 50lb minerals works great.
Amazon Customer –
Four Stars
Works well
TOM STEGER –
it works
good product helps with flies
Readaholic –
Expensive
Might have helped but I have 4 horses and went through the contents of the bucket n a month. I also have other fly control so I couldn’t tell a difference.
mike stallings –
I used this product all of 2017. I could …
I used this product all of 2017. I could tell there was a big difference using this product. No flys on manure in pasture. And almost no horse flys on cattle. My neighbors donât use fly control so you will always have a few flyâs. I will be using this product again in 2018.
Naomi Lucret –
What I was Missing In My Steers life!
It was perfect for fly control!! No more flies!
Valeriya Nagornykh –
Works miracles
No more annoying flies on our cattle. Very pleased!