What is an effective chemical control strategy for Red Fire Ants?

Combining broadcast baits and individual mound treatment represents an effective chemical control strategy for Red Fire Ants because it utilizes the strengths of multiple approaches to target the ants more effectively. Broadcast baits allow for wide-area coverage, effectively drawing in foraging ants that may not be immediately part of a mound. This method ensures that the bait can reach various nests that may not be visible or accessible.

On the other hand, individual mound treatment provides a more direct and immediate impact on visible ant mounds by applying a targeted treatment that can penetrate the colony and eliminate the queen and many worker ants. This combination ensures both immediate control and longer-lasting effects, as broadcast baits can help manage the population over time by addressing foraging ants and new mounds that may establish in treated areas.

The other methods outlined in the options tend to rely on a singular approach, which may not address the complexity of Red Fire Ant populations effectively. By using both baits and mound treatments in conjunction, pest managers can achieve a more comprehensive control strategy that enhances efficacy against this invasive species.