Silicartha

Silicartha was a special type of silica-based poison developed on the planet Tatooine. Moisture farmers used it to kill small creatures like sand-borers that would burrow into their hydroponics gardens. Luke Skywalker once tricked an Imperial officer into believing that he had taken some in order to blackmail him into accessing the data vault on Krake's Planet.

Text and facts from the “Silicartha” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.