What is the best pesticide application method for controlling a colony of carpenter ants invading wooden structures?

The most effective method for controlling a colony of carpenter ants is to locate and treat the ants' nest directly. This approach is critical because simply spraying areas where ants are observed or using bait stations in nearby locations may not effectively eliminate the entire colony. Carpenter ants are known for their nesting habits within wood structures; therefore, targeting the nest ensures that the source of the infestation is addressed.

When the nest is treated, it can significantly reduce the population and help prevent further damage to the wooden structure. Options like spray treatments or bait stations might kill individual ants but are unlikely to eradicate the entire colony if the nest remains intact. Dust formulations, while useful in certain scenarios, may not penetrate the nest where the larger population resides. Thus, finding and treating the nest directly is key to achieving long-term control of carpenter ants.