To provide an insect pest control method in which an agent can be installed at any household without resistance to protect infestation of infection mediated by insects, and is hardly peeled off after the installation.

An insect pest control method includes: making a carrier 1 or the like consisting of a vertical side ribbon 2 and a lateral side ribbon 3 support an insecticide (a) that is one selected from imidacloprid and bendiocarb and at least one bioactive substance (b) of an insect growth control agent or the like that shows a different action property from the insecticide (a) to pest insects and that substantially has not an evasion activity to pest insects; and installing the carrier in a region excluding a lower side of a wall of a house.