For fire ant control, what characteristic must a bait have?

• A. Fast acting
• B. Immediate effect
• C. Long lasting
• D. Slow acting

Answer: (D)

Fire ant bait works by being attractive to foraging workers and carried back to the colony, where the toxin spreads through the nest. If the bait acts quickly, workers that have ingested it may die before they can share it with nest mates, so the colony isn’t exposed as a whole. A slow-acting bait lets workers continue feeding and returning to the mound, distributing the toxin to the queen and other workers, which leads to colony decline. A long-lasting formulation helps keep bait available over time, but the crucial feature is slow action to ensure effective distribution within the colony. Fast-acting or immediate effects would disrupt this social feeding process and reduce control.