National Hog Farmer is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

ClariFly Larvicide 267 approved for new sow feeding rate

Lower inclusion rate will offer more affordable protection against disease-spreading flies.

Central Life Sciences has announced that ClariFly Larvicide 267 has received approval for a new feeding rate for gestating sow diets. ClariFly Larvicide 267 is a feed supplement that prevents nuisance and disease-spreading flies from developing in and emerging from the manure of treated swine. The lowered inclusion rate of 0.7 pounds of ClariFly Larvicide 267 per ton of feed was designed for limit-based feeding and will require less of the product to be administered to achieve fly control.

“This new clearance for gestating sow diets supports our mission to provide swine operations with effective fly control as cost efficiently as possible,” says Nate Brown, business manager of Livestock Feed Additives for Central Life Sciences. “With our recent findings confirming that flies can spread diseases to pigs, it’s important that producers take every effort possible to protect the health and profitability of their operation.”

Central Life Sciences partnered with Iowa State University and Grant Allison, DVM at the Walcott (Iowa) Veterinary Clinic, on a 2018 study that confirmed a revelation for the swine industry — flies can infect pigs with diseases including porcine epidemic diarrhea virus and Senecavirus A. Following the study, Allison recommended that swine operations implement comprehensive fly-control programs, beginning with a feed-through larvicide such as ClariFly Larvicide 267.

Unlike conventional insecticides that attack the nervous system of insects through direct toxicity, ClariFly Larvicide 267 instead works by interrupting the fly’s life cycle. When mixed into swine feed, it passes through the pig’s digestive system and disrupts the normal molting process of fly larvae, preventing the emergence of adult flies by as much as 96.7%.

ClariFly Larvicide 267 is specially formulated for use in swine feeds, and is approved for use in supplements, complete feeds, concentrates and premixes. Furthermore, ClariFly Larvicide 267 is designed for operations with micro-ingredient mixing systems at their feed manufacturing facilities.

For the most efficient control of house flies, stable flies and dark-eyed fruit flies, consider using ClariFly Larvicide 267 as part of a comprehensive integrated pest management program.

For more information about ClariFly Larvicide 267 and other livestock fly-control solutions, visit

Central Life Sciences products are a part of Central Garden & Pet Co. Central Life Sciences is dedicated to creating healthier environments and making life better for people, plants and companion animals around the world. As inventors of insect growth regulator technology more than 45 years ago, the founders of Central Life Sciences pioneered biorational pest control: using the insect’s chemistry as a means to reduce pest populations. To learn more about Central Life Sciences, call 800-248-7763 or visit

Source: Central Life Sciences

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.