German vs Oriental Cockroaches

German cockroaches are pale brown with two dark parallel stripes on their pronotum. They gravitate towards hot electronics, microwaves, fridge condensers, and sink units. Oriental cockroaches are larger, dark brown-black, and prefer cooler, damper environments such as basements, drains, sub-floor crawl spaces, and rubbish chutes.

The Danger of Egg Cases (Oothecae)

A single female German cockroach produces egg capsules containing up to 40 nymphs. These capsules are highly resistant to chemical sprays. Without professional insect growth regulators and properly timed follow-up treatments, newly emerged nymphs will repopulate the property within a fortnight.

Sanitation as a Synergy

Chemical baits require food competition to work quickly. When grease deposits, breadcrumbs, and leaking pipes are removed, cockroaches are forced to feed rapidly on the newly laid insecticidal gel droplets, driving maximum mortality within 48 hours.

Shared Ducts in Multi-Unit Flats

In apartment complexes across London, roaches readily migrate along heating pipe risers and electrical conduits between adjoining homes. Our technicians map communal entry gaps and install physical mesh or silicone barriers to keep neighbouring colonies out.