"Anti cafard barrage" typically refers to a comprehensive strategy or method to combat cockroach infestations. It involves a multi-faceted approach that may include using insecticides, traps, sealing entry points, and maintaining cleanliness to effectively eliminate and prevent the presence of cockroaches in a specific area or environment. The term "barrage" suggests a concerted effort or onslaught against these pests to ensure they are thoroughly eradicated and do not return.