... are frequently observed or tend to hide, such as in dark places, around inlets of sewer, by cupboard or ... refrigerator, under sink, near kitchen range, in drawer, wardrobe or hallway.·Each bag is better used ... for 3 to 5 spots. In order to ensure the effectiveness, once opened, it ... using the powder for two to four times in succession.·The more the Powder Cockroach Killing Bait ...