Ants are social insects that live in colonies. Treatment plans should include killing the entire colony. Just spraying an ant with a typical ant spray, particularly a repellent spray will only kill a few at best.
Ants may enter your house foraging for food or seek shelter. Understanding thebehavior of ants will help you with the recommended pest control procedures outlined here. They enter through the smallest openings, foraging for water or food. They are in search of either sugar based food or protein/grease based foods. Once they find a food source, ants will leave a pheromone trail for other ants to follow.
The most common ants in California areArgentine, Carpenter, and Pharaoh. Understanding their behavior patterns is the only way you achieve the best ant control. Source Pest Control knows their behavior and how to best control your ant problem!