An ant or other insect bait stake, including a stake portion, formed having reinforcement aspects, including integrally formed corrugations, and having molded therewith a reservoir portion within which a liquid or paste like insecticide or bait may be located, such that when the reservoir is opened, and the ants obtain access thereto, the insecticide may be consumed for eradication of such pests. The reservoir may be of stepped configuration, so as to provide landings for locating of the insects, as they climb down to the insecticide, located internally of the reservoir, during usage of the bait stake.