Ami writes
Orthene 97 Spray Insecticide is not for use on residential areas or for fire ants. When treating Fire Ants, it is best to perform both broadcast and mound treatments. Extinguish Plus is actually the product of choice in areas where horses may be kept or will be grazing (as long as the horses will not be used for feed or food). Extinguish Plus combines the power of hydramethylnon with an insect growth regulator (IGR) to kill fire ant workers and prevent queens from laying fertile eggs. The result is complete fire ant colony control. Extinguish Plus Fire Ant Bait is best used in the spring or early fall, or whenever fire ants are active. The ants will feed off Extinguish Plus and spread the bait throughout the entire colony, halting the infestation within weeks. Bifen IT will kill fire ants if you drench the mound. Please review our How to treat fire ants article.
Answer last updated on: 09/03/2017
