Q
How long does Bifen L/P Granular take to work?
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Asked on December 16, 2025 8:31 PM
A
Bifen L/P Granular begins working within hours after application, once the granules are watered in and the active ingredient moves into the soil and turf where insects are active. Most users notice a reduction in pest activity within 24–48 hours, particularly for ants, fleas, ticks, and other surface and soil-dwelling insects. Full control is typically achieved within 3–5 days, depending on pest pressure, coverage, and environmental conditions. Bifen L/P contains bifenthrin, a fast-acting synthetic pyrethroid that delivers quick knockdown while also providing long-lasting residual control. After activation, it forms a protective barrier in the soil and thatch layer that can remain effective for up to 30 days, helping prevent reinfestation. The low-dust, pelletized formulation allows for even distribution and consistent performance across lawns, landscapes, and perimeter areas. For best results, apply Bifen L/P evenly using a spreader and irrigate shortly after application to activate the granules and move the insecticide into the target zone.
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