WHAT TO LOOK FOR
Home Range: up to 300 ft diameter
Food: insect honeydew, plant & fruit juice, sweets, meat, eggs, grease.
Nesting: Main colony, with multiple satellite colonies possible;
Nest Size: Up to 15,000 ants
Id: Black to Black/Red Color, trails always clean of debris; Busy Ant
Home Range: Varies upon colony size
Food: sweets, greasy meats, cheese
Nesting: Main colony, with multiple satellite colonies possible
Nest Size: 100,00 ants and up (yes, that is one hundred thousand)
ID: Small Ant: Strong coconut type smell when crushed
Home Range: up to 30 ft diameter from the nest
Food: Opportunistic; pet food
Nesting: Main colony
Nest Size: 3,000 to 4,000
ID: Dirt Craters at nest opening
The simple fact of the matter is that, for the most part, the products you have access to as retail customers are not as effective as the products a professional pest management company. A good portion of the DIY products are repellents. This means that you will kill some ants, but most of them are repelled away from the treated area. As you know, if ants are repelled from one place, they show up somewhere else and continue being a problem.
The most effective ant control method is beginning an Integrated Pest Management Plan by a professional ant exterminator.