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Stephanie from Richmond, Va writes

Is Precor a residual product?

If I spray Precor/Conquer today, and a larvae hatches 5 days from now, will that new adult be affected by the Precor? I assume the residual Conquer will likely kill the flea, but if it lays eggs before it dies, will those eggs hatch?

Answer:

Yes, both Conquer Insecticide and Precor IGR Concentrate will continue working after they are dry. While we do recommend retreating at 2-week intervals for active flea infestations, Precor can continue working for up to 7 months indoors (provided carpets are not steam-cleaned or shampooed). While Precor may not prevent eggs from hatching at all, it does prevent immature fleas from reaching adulthood.

Answer last updated on: 10/17/2017

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Precor IGR Concentrate

Precor IGR Concentrate

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