Importance of controlling flies before they emerge: How Larvadex 1% Premix helps break the fly life-cycle in breeder and layer houses

Most fly pressure in poultry houses starts where it's hardest to see: in the manure. Only 15% to 20% of the fly problem in poultry houses is adult flies, while the remaining 80% is still in the larval stage ¹. That makes larval control a critical part of any fly management program in breeder and layer housing.

How Larvadex Works

Larvadex® 1% Premix is an in-feed insect growth regulator for control of dipterous fly larvae ¹. It is mixed with feed and fed normally, then metabolized by the birds and left behind in their manure. It is mode of action disrupts molting and interferes with chitin metabolism in fly larvae, stopping them from developing and helping prevent population growth.¹

Insights for Applicators

For applicators, timing and monitoring matter. When using Larvadex, start at the beginning of fly season, check adult fly activity in and around the house, and examine manure pits for maggot activity ¹. When maggots are active, Larvadex should be fed continuously as directed for 4 to 6 weeks, then manure pits should be rechecked to determine whether fly activity has dropped enough to discontinue use and continue the sanitation and management program.¹

Use Larvadex with breeders and layers

Larvadex is approved for use with breeders and layers, but it should not be fed to broiler poultry.¹ A three-day withdrawal period should be observed for layers and breeders before processing for food.¹ Use Larvadex in tandem with an effective adulticide for a more complete fly management approach.¹

Fly Control is Critical

As part of a broader Integrated Pest Management (IPM) program, Larvadex can help support manure management and routine monitoring efforts in breeder and layer houses. When used according to the label, it offers a practical way to help reduce fly nuisance, help minimize exposure to disease-carrying flies and support a more complete fly control program.