The answer to 'when to treat for ant' is that the best time to treat for ants is when you first notice them in your home. Ants are most active in the spring and summer months, so it's important to be proactive and treat for them before they become a major problem. The key is to identify and eliminate the ant colony as early as possible.
Treating for ants involves using a combination of baits, sprays, and other control methods to target the entire ant colony, not just the ants you see on the surface. This is best done by a professional pest control technician who can properly identify the ant species and develop an effective treatment plan for your home.