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 is formulated on corn grit, along with soybean oil, a proven attractant bait for native and imported fire ants. Metaflumizone belongs to a new IRAC (Insecticide Resistance Action Committee) Mode of Action Chemical Group, 22B.

Siesta Insecticide Fire Ant Bait is the only sodium blocker insecticide (SCBI) that does not require metabolism for bioactivation. The specific site of the insecticidal action is not currently known, but it does act 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 by researchers as “relaxed paralysis.” The direct effects are that Siesta Insecticide Fire Ant Bait causes the cessation of feeding, increasing levels of immobility, and ultimately ant death.

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.


Siesta™ Insecticide Fire Ant Bait

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