The large reddish-brown cockroach seen in bathrooms, drains, and storage areas across Karachi. American cockroaches enter properties through the sewer system via drain lines, floor traps, and wall gaps near plumbing. They are primarily drawn to moisture and decaying organic matter rather than food preparation areas.
Treating the kitchen alone does not address this species. The sewer entry routes — drain lines, floor traps, and toilet connections — must be part of the treatment. An electric fogger combined with drain-line chemical application targets the routes of entry directly.
Size:
35–50 mm, reddish-brown with yellow band behind the head
Location:
Bathrooms, drains, basement areas, and wall cavities near pipes
Primary treatment:
Drain-line chemical treatment + electric fogger in living areas
Entry route:
Sewer system, damaged drain seals, and floor trap gaps