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Spinosad is a product formed from a common bacteria found in nature," Engler said. "Once ingested by the fire ant, spinosad attacks the nervous system causing paralysis and death."
Engler warned that to work correctly, baits must be applied at the right time and used with patience. Baits are only effective when the fire ants are searching for food.
"Fire ants will forage when the soil surface temperature is between 70 and 90 degrees, which is usually between May and September," Engler said. "To see if fire ants are actively foraging, place a small amount of bait or food, such as a hot dog or potato chips, by the mound.
Also, only fresh bait products should be used. Fire ants will not pick up the bait if it smells rancid."