Fly control is important not only to cows, but also to the people who work and live around them. Nuisance and biting flies are a vector of disease and an irritant. ClariFly® Larvicide targets all of the fly species – including house flies, stable flies, face flies and horn flies – making it an ideal fly control solution.

When recommending the use of a feed through such as ClariFly® Larvicide, it is essential to point out that this is only one part of a complete fly management program. There is no such thing as a “silver bullet” for fly control issues; a multi-faceted approach will yield the best results. Further, to be fully effective, animals of all ages should be treated with ClariFly® Larvicide. When only some animals are given treatment, fly populations that start amongst untreated animals can cross over to treated animals.

How Feed-Through Products Work

Conventional insecticides – often referred to as adulticides – kill flies by attacking their nervous systems. Feed-through products such as ClariFly® Larvicide work by interrupting the fly’s life cycle rather than through direct toxicitiy. The active ingredient in ClariFly® Larvicide specifically targets flies in the larval stages of pupation by disrupting the proper development of an exoskeleton. Without an exoskeleton, flies are unable to survive into adulthood.

When a feed through like ClariFly® Larvicide is fed, cattle ingest it as part of their daily feed intake. It then passes through the animals’ digestive systems and ends up in their manure, where flies lay eggs. It is here that the fly life cycle is interrupted. Independent studies show that ClariFly® Larvicide can reduce fly populations in the manure of animals treated with ClariFly® Larvicide by as much as 96.7%.*

For best results, ClariFly® Larvicide should be added to your feed supplement 30 days before fly emergence (typically when average daily temperatures reach 65 degrees) and continued throughout the season until 30 days after the first frost.