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Catron® IV

Product Details

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★ ★ ★ ★ ★ Read reviews »

The best product for treating sheep with fly-strike. Treats from 1–10 animals depending on the severity.

  • For use on wounds to kill and repel flies and fly maggots
  • Controls ear ticks on livestock
  • Kills and repels face flies on livestock

  • Catron® IV, 10 oz spray can

    Item #888147 | Weight 0.84 lbs
    In Stock
    $12.00
Data
Accessories
Reviews

Shipping

Cannot ship via USPS Priority Mail or expedited AIR service. Cannot ship to AK, HI or PR.


Common Uses

For treating sheep with fly-strike. Also a maggot, screwworm and ear tick spray for livestock and horses. Kills and repels face flies.

  • To prevent fly-strike after applying ear tags, spray either side of the tag with a short burst.
  • Apply to "O" Rings or elastrator bands after docking or castrating lambs or kids.


Specs

Active Ingredient

  • Permethrin (CAS No. 52645-53-1) 0.50%
  • Other ingredients 99.50%


Precautions

Please read all warnings and cautions on label. For livestock use only.

Listed below are recommended optional components or related items. Your particular situation may require alternative recommendations. Please call and talk to our consultants if there are any questions at 800-282-6631.

  • Trigger Handle for Aerosol Spray Cans
    Marking Aids

    Trigger Handle for Aerosol Spray Cans

    Item #604300 - In Stock

    Spray can accessory snaps onto aerosol cans for precise control while spraying. Reduces hand fatigue and protects fingers from overspray.

    $6.00
  • Blue Ring Expander
    Docking and Castrating

    Blue Ring Expander

    Item #702001 - In Stock

    Docking and castration tool for stretching elastic “O” rings on calves, lambs and goat kids. Reduces chance of fly strike.

    $10.50
  • "O" Rings, orange, bag of 100
    Docking and Castrating

    "O" Rings, orange, bag of 100

    Item #703000 - In Stock

    Rubber “O” rings for tail docking lambs and castrating ram-lambs and goat kids. 100 latex rings per package/container.

    $2.25
  • Side Crusher
    Docking and Castrating

    Side Crusher

    Item #707200 - In Stock

    Use to crush the spermatic cords of male sheep or goats for the purpose of castration. Comfortable angle on the users hands.

    $115.75
  • Emasculatome
    Docking and Castrating

    Emasculatome

    Item #707100 - In Stock

    Use for castrating ram lambs and buck kids. Crushes the spermatic cord. No need for knives or rubber rings.

    $43.50
  • Double Crush Tail Docker
    Docking and Castrating

    Double Crush Tail Docker

    Item #707000 - In Stock

    Crushes the arteries before severing, minimizes the risk of bleeding when docking or castrating lambs or kids.

    $76.00
  • MiniTag (yellow, pkg. 20)
    Ear Tags

    MiniTag (yellow, pkg. 20)

    Item #609200 - In Stock

    Reliable long-term ear tag for goats and small sheep breeds. Designed to last for the lifespan of the animal. Scrapie approved. FREE custom imprinting!

    $12.00
    Customize
  • MiniTag EID Ear Tags, pkg of 4 tags, yellow
    Ear Tags

    MiniTag EID Ear Tags, pkg of 4 tags, yellow

    Item #630124 - Back-ordered: Expected on 05/13/2025
    Notification request sent

    Official USDA 840 electronic identification (EID/RFID) ear tags for sheep and goats. Scrapie approved. FREE custom imprinting!

    $7.50
  • Q-flex 1.5 (yellow, pkg. 20)
    Ear Tags

    Q-flex 1.5 (yellow, pkg. 20)

    Item #630031 - In Stock

    Easy-to-read livestock ear tags for lambs, goats and small sheep breeds. Scrapie approved. FREE custom imprinting!

    $13.00
    Customize
  • Q-flex 3 (yellow, pkg. 20)
    Ear Tags

    Q-flex 3 (yellow, pkg. 20)

    Item #630051 - In Stock

    Livestock ear tag for well-suited for adult rams and ewes. Readable by most. USDA Scrapie Eradication Program approved. FREE custom imprinting!

    $18.00
    Customize
  • Z Tag, Long Neck Calf (yellow, pkg. 25)
    Ear Tags

    Z Tag, Long Neck Calf (yellow, pkg. 25)

    Item #620116 - Back-ordered: Expected on 07/01/2025
    Notification request sent

    One-piece ear tag for cattle ID. Long neck for easier reading in winter when animals have longer hair. Self-piercing cutting tip for easy application.

    $36.00
    Customize
Average Rating: ★ ★ ★ ★ ★ 5 out of 5
Number of reviews: 3 customers reviewed this product.
Recommended: 3 out of 3 said they would recommend this product to a friend.

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This is our preferred fly spray. It is amazing how effective it is. While applying ear tags, we sprayed over 300 lambs with one can. Every barn, and most of our vehicles, carry a can of Catron IV.
Catron® IV
★ ★ ★ ★ ★
August 21, 2024

William C from Pennsylvania

We have used Catron for fly-strike, and it works beautifully. I could not raise sheep and goats without it. A must have!

Catron® IV
★ ★ ★ ★ ★
July 19, 2018

Michael F from Arizona

Great product!

Catron® IV
★ ★ ★ ★ ★
August 21, 2015

Sheila & Jim H from Iowa

BEST PRODUCT EVER! Do NOT raise sheep and not have a can or 2 of this in your arsenal. We have sheep in 3 locations. The ewes at one location started to show signs of flystrike! We immediately started treating with Catron and we saw immediate improvement.

About Conductivity

Conductivity measures the amount of electrical current a material can carry. The opposite measure is known as resistance.

Tinned Copper Superconductor

Many of Premier’s electric net fences feature a green and white superconductor that has both stainless steel and tinned copper filaments for optimal conductivity.

These “premium” nets are 10 times more conductive (38 ohms per 1000') than “basic” nets offered by our competitors. This enables the electric pulse to travel much farther and be less affected by weed contact.

Customers who are unhappy with netting are often those who’ve chosen nets from China or their farmstore equivalents.

Types of Line Posts

Line posts are built into the net. Three options are available.*

Line Posts Compared
  1. Single Spike (SS)
    The best choice, unless your soils are always soft or very hard.
  2. Double Spike (DS)
    Posts allow you to push in the spikes with your foot. When soil is hard or rocky, double spikes are more difficult to install and remove.
  3. Drivable Posts (DP)
    Allows use of a mallet or dead blow hammer for installing posts in dry, hard or rocky soil. Features a “spike stop” for extra support and internal fiberglass ribs for added strength.

Tip: To insert a line post into frozen or hard soil, use a power tool to drill pilot holes.

* Not all fences have all line post options.

About Positive/Negative (Pos/Neg) Nets

Is your area dry?

Conventional electrified fence systems rely on soil moisture to be effective. However, not all areas have the required moisture.

Dry soil increases resistance—a weaker, less effective pulse occurs that does not deter animals.

To overcome this, Pos/Neg nets* are wired to allow the use of every other horizontal strand as an extension of the ground terminal. Because half the strands are connected to the ground terminal or ground rod, reliance on soil moisture is reduced. A PowerLink must be purchased separately to make the secondary ground connection.

How it works…

In order to receive a shock, the animal must touch both a positive (hot) and negative (grounded) strand at the same time. This will deliver more pain to the animal than an all hot net (Pos/Pos) because moisture in the soil is not required to complete the circuit.

Pos/Neg fences can be converted to Pos/Pos in moist conditions. Remember, all fences must be kept free of vegetation.

* Not all fences have Pos/Neg options.

Line Post Spacing

“Plus” nets—6'8" spacings between built-in line posts*

Line Post Spacing

Standard nets—10' or 12' spacings between built-in line posts*

* Spacings are approximate.
Distance between built-in line posts may vary by product.

Essential Energizer Advice

  • Buy a larger energizer than necessary. When the fence pleases, most folks will buy more fence—and need additional output.
  • Use a low-impedance intermittent pulse energizer.
  • Use a fence tester to check the voltage often.
  • Use enough ground rod(s)—included with our energizer kits.
  • Don’t allow your lead acid battery to discharge below 40%.
  • Use insulated wire that is designed for electric fences.
  • Always connect the fence to an energizer, not an outlet.
  • Visit this link for answers to other common energizer questions.

Two Basic Types

  1. All-in-one Solar
    • Solar units are very portable.
    • Because they need a battery, these units are more costly to purchase and operate than plug-in units.
    • Batteries are less effective in cold temperatures (deplete faster).
    • Most farmstore solar units are too weak, in joules of output, to properly energize netting. That’s why we designed our own.
  2. Plug-in & Battery
    • Least cost to purchase and operate per joule of output.
    • Best for fences exposed to heavy vegetation.
    • Cold temperatures do not affect performance.
    • Recommended for whole-farm systems, but can be complex to install. Higher output requires more ground rods, underground cables, multiple output terminals, etc.

Shipping Zones

Map of Shipping Zones
Dan Morrical

Dr. Dan Morrical, Ph.D.
Premier 1 Supplies

Dan Morrical joined the Iowa State University staff in 1984 as Extension Sheep Specialist after completing his doctorate degree at New Mexico State University. He held the rank of Full Professor as of July 1, 1995 and retired from full-time teaching in 2017.

While at Iowa State University, Dr. Dan Morrical was responsible for educational programs in all areas of sheep production, ranging from nutrition, genetics, marketing and management. Research areas focused on applied projects in the areas of nutrition, forage utilization, genetics, out-of-season breeding and lamb survival.

Dr. Morrical has been heavily involved in providing educational resources to the sheep industry. He has authored over 30 extension fact sheets, ration balancing software programs, grazing videos and co-authored the nutrition chapter of the SID Handbook with Dr. Margaret Benson from Washington State University.

Dr. Morrical now serves as Premier’s on-staff small ruminant nutritionist and sheep production advisor. Most recently, he’s introduced a line of “GOLD FORMULA” mineral premixes under The Shepherd’s Choice® brand, aimed to maximize hoof health and immunity.

Braided vs. Twisted

Braiding instead of twisting the horizontals increases the frequency of metal filaments on the outside of the strand.

Braided vs. Twisted Electric Net Fences

What’s the benefit?

  1. More metal is exposed on the outside of the strand. This enables improved animal to conductor contact. The electric pulse is better able to travel from the fence and into the animal, resulting in a memorable shock.
  2. A tighter, braided weave results in fewer snags when carried or pulled through pastures, reducing frustration.

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Local: 319-653-9600 • Fax: 800-346-7992 or 319-653-6304
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Note from the manufacturer of BioWorma®

At this time, we will NOT be able to supply any BioWorma or Livamol with BioWorma in the foreseeable future—this is about as frustrating as it gets and all I can do is apologize to you and ultimately our very supportive customers.

Chris Lawlor
International Animal Health

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Due to supply constraints, we are unable to provide an estimated in-stock date for this item. We appreciate your patience and apologize for the inconvenience.