

Hero image 0 of Bayer CyLence Pour-On Insecticide (16 oz), 0 of 2
Bayer CyLence Pour-On Insecticide (16 oz)
Key item features
- Effective Insect Control: For control of horn flies, face flies, biting lice, and sucking lice on beef and dairy cattle.
- Safe for Lactating Cattle: Can be safely used on lactating cattle without any withdrawal requirements for meat or milk.
- Ready-to-Use Solution: No mixing required; can be used any time of year, including during cold weather.
- Easy Application: Apply the required amount directly along the top of the back and head of the animal.
- Versatile Usage: Suitable for cattle of any age, size, or breed, including those housed indoors in barns or dairy parlors.
- Long-Lasting Treatment: One treatment lasts for up to 3 weeks, with a 16 oz bottle treating 40 cows for flies or 20 cows for lice.
- Minimal Product Required: Only 4 mL per 400 lbs for horn and face flies, and 8 mL per 400 lbs for lice.
Generated by AI
Specs
- Pest typeFlies
- Pest bait, trap & killer typeInsecticide
- Rec locationOutdoor
- FormLiquid
- Treatment effective time3 weeks
- SizeOne Size
Current price is USD$29.99
Price when purchased online
- Free shipping
Free 90-day returns
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Ships to
Arrives between May 23 - May 27
|Sold and shipped by Midwest Veterinary Service
4.544041450777202 stars out of 5, based on 193 seller reviews(4.5)193 seller reviews
Free 90-day returns
About this item
Product details
CyLence® Pour-On Cattle CyLence Pour On contains 1% Cyfluthrin in a ready-to-use pour-on formula. For use on beef and lactating dairy cattle of any age. CyLence Pour-On Cattle controls: horn flies face flies biting and sucking lice For use on cattle of any age, size or breed, including lactating cattle. Can be applied indoors to animals housed in barns or dairy parlors. Instructions for Use Apply 4 mL per 400 lbs for horn & face flies; 8 mL per 400 lbs for lice. Pint (16 oz) treats 40 cows for flies or 20 cows for lice. One treatment lasts for up to 3 weeks. Can be used at any time of year, including during cold weather. No meat or milk withdrawal. View manufacturer and/or label information
- For control of horn flies face flies biting lice and sucking lice on beef and dairy cattle
- Can also be safely used on lactating cattle
- Keep out of reach of children
- Ready-to-use solution — no mixing required.
Can be used any time of year. - Only a small amount of product is required per treatment.
No meat or milk withdrawal requirements.
Can be used on cattle of any age or size.
Convenient, versatile and effective.
Apply the required amount of product directly along the top of the back and top of the head of the animal.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Pest type
Flies
Pest bait, trap & killer type
Insecticide
Rec location
Outdoor
Form
Liquid
Directions
Instructions
Apply 4 mL per 400 lbs for horn & face flies; 8 mL per 400 lbs for lice. Pint (16 oz) treats 40 cows for flies or 20 cows for lice. One treatment lasts for up to 3 weeks. Can be used at any time of year, including during cold weather. No meat or milk withdrawal.
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Warning Text
proposition 65 reasons:WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/.
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Customer ratings & reviews
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Showing 1-3 of 9 reviews
Apr 25, 2026
Pat A
5 out of 5 stars review
Seller Verified Purchase
Fly Away
[This review was collected as part of a promotion.] CyLence was put on my bulls and within a day there were no flies on them. Applied to the calves with same result at booster time. No sense having them lose pounds because of running around from flies. Will be applying to my cows when I preg test and expect the same relief for them as well.
Review from SCBT
Helpful?33M9XI6FTV55377689160
Jun 25, 2025
ReJo
5 out of 5 stars review
Seller Verified Purchase
Quick and efficient!
[This review was collected as part of a promotion.] We have been using this product on our herd for years and love its effectiveness
Review from SCBT
Helpful?33M9XI6FTV55377689160
Sep 18, 2024
Tn11
5 out of 5 stars review
Seller Verified Purchase
Great product
[This review was collected as part of a promotion.] Great product! Will order again. Kills flys on contact.
Review from SCBT
Helpful?33M9XI6FTV55377689160
