Siesta® Insecticide Fire Ant Bait

Fast, effective, and affordable.

Siesta Insecticide Fire Ant Bait, with the active ingredient metaflumizone, delivers fast and long-lasting control of native and imported fire ants.

Metaflumizone belongs to the IRAC (Insecticide Resistance Action Committee) Mode of Action Chemical Group, 22B.

This fast-acting insecticide works through ant ingestion with limited contact activity. Feeding cessation begins quickly—within 15 minutes to 12 hours of ant recruitment. Insects die within 72 hours.

Siesta Insecticide Fire Ant Bait is the only sodium blocker insecticide (SCBI) that does not require metabolism for bioactivation. It acts on the insect’s nervous system, where it blocks the voltage-dependent sodium neuron channel. As a result, these neurons are inactivated, causing the ant to enter a state described as “relaxed paralysis,” or a siesta.

General Information

Keys to Success

Siesta Insecticide Fire Ant Bait is best applied as a broadcast treatment where foraging ants and mounds that remain hidden or unnoticed receive coverage. Broadcast treatments can be applied to the area using a hand spreader, backpack or push-type spreader. For larger acreage, spreaders can be attached to an ATV, truck or tractor to allow for even coverage. Calibrate spreader prior to use to apply a rate of 1.0–1.5 lb./A.

  • Best applied at first sign of fire ant activity
  • Best applied in temperatures above 60°F, when ants are actively foraging
  • Best applied in early morning (no dew) or late in the afternoon
  • DO NOT water in granules after application
  • DO NOT apply when the ground is saturated with water or when heavy rains are expected within 12 hours of treatment
  • If treated areas need to be irrigated, then wait at least 12 hours following treatment

Always read and follow label directions.

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