Pheromone lures contain highly concentrated, natural identical insect sex pheromone, attracting male target pests by emitting pheromone into the air. You can:
A) use the pheromone traps and lures as monitoring tools to plan your application of chemicals; or
B) use them as mass trapping tools to just simply reduce the pests and their later generations.
Such method is clean and safe to control the pests, most of the time more economical.