A GROVE CITY AGWAY employee favorite -- The best new product out there for mosquito control! Two Pack. Works for up to 90 days! The Spartan Mosquito Eradicator is the most effective, longest lasting, continuous mosquito control system. Spartan doesn’t use sprays, fogs, coils, mosquito nets, citronella, electronic equipment, or zappers. The Spartan Mosquito Eradicator also doesn’t require batteries or electricity, just water!