"Anyone remember pheromone sprays?"
The pheromone sticky traps for clothes-eating moths work. I hung one up - and couldn't believe the almost instant presence of (presumably) male moths fluttering towards it.
How researchers identified what chemicals are pheromones is interesting - as by definition they are odourless to the normal sense of smell. "Jacobson's Organ and the remarkable nature of smell" by Lyall Watson is an interesting read.