The answer to 'ant trails' is that ant trails are a common sign of an ant infestation in the home. Ants leave a scent trail that helps guide other ants to food sources, which can lead them into your home. Common causes include crumbs, spills, or other food sources that attract ants, as well as cracks or entry points that allow them to get inside.
Symptoms of ant trails include seeing a line of ants moving in a consistent path, often leading to a food source. The solution is to eliminate the food source and seal any cracks or entry points where the ants are getting in. This can often be done through DIY methods like cleaning, caulking, and using ant baits or sprays. However, for severe infestations or hard-to-reach areas, it's best to call a professional pest control technician who can properly identify the ant species and use more advanced treatments to eliminate the entire colony.