disinfestation cockroaches in the sewer system with spraying of pyrethroid insecticides

abdomen animal background bacteria big brown bug cheap city closeup cockroach cockroaches creeping creepy dead death die dirt dirty disease disgusting disinfestation drain dying environment face fly hairy head hygiene infestation insect insecticide insecticides leg nasty nature pest pyrethroid roach sewer spraying system unhealthy urban water wildlife