The Synthetic pheromone dispersal unit was a technology developed by Doctor Brad Champlain in his research of feral mutalisks. It operated on the basis that when outside of psychic control, mutalisks operated on different musks. The SPDU mimicked the scent of spawning effluent of a hatchery. If attacked, the device could be deployed to ward away mutalisks.

The device initially worked to ward away mutalisks, but the creatures eventually turned back to engage the goliath of Breg Shaw.


Bogdanove, Kal-El. "Frenzy." (Feb. 28, 2013). Blizzard Entertainment. StarCraft Lore: Frenzy Accessed 2013-02-28.