What is the effective method for controlling Odorous House Ants chemically?

Utilizing baiting and perimeter treatments is the effective method for controlling Odorous House Ants chemically because it targets their foraging behavior and the structure of their colonies. Baiting involves using a slow-acting insecticide that the ants will carry back to their nests, allowing it to be shared with the colony members, including the queen. This method is particularly efficient because it eliminates not just the visible ants but also those that are hidden within the nest, leading to a more comprehensive control strategy.

Perimeter treatments enhance this approach by creating a protective barrier around the structure, preventing ants from entering and establishing new nests inside the home. This dual strategy addresses both current infestations and potential re-infestations, which is critical for an effective long-term control.

In contrast, other methods like spraying a residual insecticide without locating nests may not effectively target the source of the problem, and relying solely on fogging treatments or direct applications to visible ants might only provide temporary relief without addressing the underlying infestation. Therefore, baiting combined with perimeter treatments offers a holistic approach to effectively manage and control Odorous House Ants.