Bifen LP Granules (Bifenthrin)

Overview

Bifen LP (Low Profile) granules are the go-to budget insecticide for homeowners dealing with a wide range of lawn pests. Bifenthrin is a synthetic pyrethroid that works as both a contact and ingestion insecticide, meaning it kills insects that touch the treated surface and those that feed on treated grass blades or thatch.

How It Works

Bifenthrin disrupts the sodium channels in insect nervous systems, causing paralysis and death. As a granular product, it settles into the turf canopy and thatch layer where surface-feeding insects live. A light watering after application activates the product and moves it into the upper soil profile. Residual activity lasts 2-4 weeks depending on conditions.

Timing and Application

Apply when insects are active, typically late spring through early fall. For preventive control of chinch bugs and sod webworms, apply in late May to early June. For active infestations, apply immediately at first sign of damage. Spread with a broadcast spreader at the label rate and water in with 0.25 inches of irrigation. Evening application is ideal since many target insects are most active at dusk.

Why It’s the Budget Pick

At $25-35 per bag covering nearly 12,000 sq ft, Bifen LP is significantly cheaper per application than liquid alternatives. The granular form requires no mixing, no sprayer, and no calibration — just load a spreader and walk. For homeowners who want broad-spectrum insect control without professional equipment, this is the entry point.