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Additional Note
If your pet has an allergy, please let us know through the additional comment in the Cart Section when selecting your plan. We will substitute that treat for something equally tasty.
Protect your herd from the irritation and health risks of flies with JustiFLY® 0.67%, a safe and effective feed-through larvicide. This advanced insect growth regulator (IGR) breaks the life cycle of horn flies, stable flies, house flies, and face flies—stopping them before they become a problem.
Unlike sprays, pour-ons, or ear tags, JustiFLY® requires no handling, no stress, and no residues. Simply mix into your cattle’s mineral feed, and as animals consume it, the larvicide passes harmlessly through the digestive system. It targets fly larvae in manure, preventing new infestations while keeping dung beetles safe and active.
Perfect for pasture and feedlot cattle, beef and dairy herds, and approved for lactating cows with no milk disposal or withdrawal period, JustiFLY® 0.67% is a convenient, season-long solution to fly control—all for less than 6 cents per head per day.
🐄 Comprehensive Fly Control – Stops horn, stable, house, and face flies at the source.
💰 Cost-Effective – Protects cattle for less than 6¢ per head per day.
✅ Safe for All Cattle – Approved for beef, dairy, feedlot, pasture, and lactating cows.
🌿 Environmentally Friendly – Dung beetle safe, no residues, no resistance issues.
⚡ Stress-Free Protection – No more dust bags, sprays, pour-ons, or ear tags.
☀️ Continuous Season-Long Control – Works every day cattle consume treated mineral.
Brand: JustiFLY®
Type: Feed-Through Larvicide (IGR)
Active Ingredient: 0.67% Diflubenzuron (IGR)
Application: Add to cattle mineral feed
Safe For: Beef cattle, dairy cattle, lactating cows
Target Pests: Horn flies, stable flies, house flies, face flies
Usage: Continuous throughout fly season
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship virtually to any address within US. Note that there are restrictions on some products.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Order Placement and Confirmation:
When placing your order on our website, select the "Pick Up In-Store" option at checkout. You will receive an email confirmation once your order is successfully placed.
Pickup Notification:
We will notify you via email when your order is ready for pickup. Please wait for this notification before coming to the store.
Pickup Location:
Your order will be available for pickup at our store located at 751 Port America Place suite 420, Grapevine, TX, 76051 . Store hours and contact information can be found on our website.
Pickup Timing:
Your order will typically be ready for pickup within 48 hours of order confirmation unless any other problem arise in which case you will be notified via email. Please wait for the notification before arriving for pickup.
Identification and Confirmation:
When picking up your order, you may be required to provide a valid photo ID and the order confirmation email (digital or printed) for verification.
Authorized Pickup:
If you are unable to pick up the order yourself and wish to designate someone else to pick it up on your behalf, please ensure that they have a copy of the order confirmation email and a copy of your photo ID for verification.
Order Changes:
Any changes to your order, such as modifications or cancellations, must be requested before the designated pickup time. Please contact our customer service for assistance.
Hold Period:
Your order will be held for pickup for 7 days from the time you receive the pickup confirmation notification. After this period, your items may be restocked, and your order may be canceled.
Items Inspection:
Please inspect your items upon pickup. If you discover any issues with your order, kindly notify our store staff immediately for assistance.
Returns and Exchanges:
Our standard return and exchange policies apply to items picked up in-store. Please refer to our Returns and Exchanges policy for more information.
Modification and Termination:
We reserve the right to modify or terminate the Buy Online, Pick Up In-Store service at any time without prior notice.