Industrial-grade pesticide is toxic gas used by the Galactic Federation to rid areas of unwanted creatures. Seen only in Metroid Prime 2: Echoes, it suffocated a group of Splinters in Hive Chamber A. Three Federation Marines were also killed when they could not escape due to a malfunction with Gate A1's locks. When Samus Aran enters Hive Chamber A, the pesticide is still being dispensed. However, it cannot harm her. The pesticide is composed of a green gas.