Wellmark Extinguish Plus Fire Ant Bait, 4.5-Pound Extinguish plus fire ant bait is the only bait in the industry that combines two active ingredients to control fire ant infestations The IGR sterilizes the queen and prevents rebound, while the fast-acting adulticide kills problem worker ants This two-way action ensures complete, fast-acting and long-lasting control of fire ants Comes in 4.5-pounds bag Measures 6-3/5-inch length by 8-6/7-inch width by 13-inch height