Asian cockroach
Blattella asahinai
Looks like a German roach but flies to lights at dusk from the lawn.

SeasonSpring through fall
WhereLawns and mulch
RiskNuisance indoors
How to tell
- Nearly identical to the German cockroach — same size, same two stripes.
- The behavior is the giveaway: Asian cockroaches fly readily and are drawn to lit windows and TVs at dusk.
- They live outdoors in leaf litter and turf, not in kitchen cabinets.
- You see dozens at once on a screen or wall at sunset, then almost none at midday.
Where you'll find it
- Mulch beds, grass clippings, and shaded ground cover.
- Screens and lit windows on the west side at dusk.
- Around exterior lighting and lanai lamps.
Why it matters
They are an outdoor insect that keeps arriving indoors by air, so cabinet baiting does nothing. Misidentifying them as German cockroaches leads to weeks of the wrong treatment.
How Strike treats it
We confirm the species first, because it changes the whole plan. Treatment targets turf and mulch harborage on the lit sides of the house, plus a perimeter band and treatment of screens and entry surfaces. We recommend warm-toned or shielded exterior lighting, which cuts the number arriving each evening. Service runs monthly or bi-monthly during the active season.
What you can do before we arrive
- Note the time of day you see them — that alone identifies the species.
- Rake grass clippings and leaf litter away from the house.
- Close blinds on the lit side at dusk for a few evenings.
- Tell us which exterior lights stay on overnight.
Related pests
German cockroachBlattella germanica
Small tan roach with two dark stripes. Breeds indoors, fast.American cockroachPeriplaneta americana
The big reddish-brown roach locals call a palmetto bug. Comes in from outside.MosquitoAedes aegypti
Bites at dawn and dusk. Breeds in any standing water on the property.
Small tan roach with two dark stripes. Breeds indoors, fast.SeasonYear-round
WhereKitchens and bathrooms
RiskFood contamination, allergens
The big reddish-brown roach locals call a palmetto bug. Comes in from outside.SeasonYear-round, worst in wet season
WhereDrains, garages, attics
RiskFood contamination
Bites at dawn and dusk. Breeds in any standing water on the property.SeasonHeaviest June through October
WhereYards, lanais, shaded plants
RiskBites, disease vector
Dealing with asian cockroach?
Call or send a request and we'll confirm your window within one business day.
