I think it's BS. Logic would say it's BS because of evolutionary purposes of pheromones, which would made in glands, and in almost any other case used for attracting LIVE mates. If you suddenly smashed one, then the worry is you're busting their pheromone sac or whatever and attracting more? Specious.
I'm suspicious haha. I looked it up anyway and can't find any proof of that, only the negative.