Cyanides are used as insecticides for fumigating ships. Uses included delousing clothing and fumigating ships, warehouses, and trains. The quarantine was lifted but the burning and fumigating continued. A tactic that may be effective, dependent on spores, would be fumigating before planting. They use "Symphyotrichum novae-angliae" as a fumigating reviver. Some chemical means of control include&colon; fumigating and certain phosphonate fungistats. The trolley cars in Bahia included a fumigating compartment and a two-bed nurses work area.