Borax is highly toxic to red ants, which helps get rid of them easily. Ants are attracted to borax, and when they ingest it, they die of the toxicity.
Tip: Borax is toxic to pets and small kids, so keep it away from them.
2. Cayenne pepper
Cayenne pepper is another ingredient which is effective in getting rid of red ants. Cayenne pepper’s strong nature helps destroy the chemical signals that ants rely on while navigating towards food, their colony, or other places. Without this signal, they get lost, which makes it hard for them to survive.
Cinnamon is an amazingly effective remedy to get rid of red ants, since its pungent smell is a deterrent to these pesky insects from entering your house or your garden. Cinnamon essential oil is very effective in repelling insects like red ants.