Blattella asahinai Mizukubo
The Asian Cockroach is well established in Central Florida; it has been reported in Pensacola and other areas of the Florida Panhandle as well as in East Central Georgia. This roach is easily confused with the German Cockroach; most professionals cannot distinguish one from the other unless found alive, while observing the roach behavior and habitat. The Asian roach is a good flyer and is attracted to homes at night, flying towards light. This pest is commonly found in turf grass and is often seen flying indoors and crawling across computer and television monitors. The German Cockroach is not capable of sustained flight and prefers to live indoors. The Asian roach is an accomplished flyer and lives outdoors, wandering into homes by accident where they become a pest.
Asian Roach Behavior
At dusk, the Asian roach becomes very active and adults are attracted to light
reflected off light-colored walls, doorways and windows. This roach is capable of
sustained fly for a distance of 150 feet. They then actively try to enter the home
where they rest on lighted walls. When light are turned off (as residents of the
home leave a room,) the cockroaches will follow to the next lighted room. Thus, many
residents believe that these roaches are attacking them -- but they are not.
The life cycle of the Asian roach is very similar to that of the German cockroach. Female Asian cockroaches have a lifetime reproductive potential for producing approximately four egg capsules, each containing 35 to 44 nymphs. Immatures take approximately 67 days to reach adulthood. Females can then live for 104 days and males can live for 49 days. Females can produce their first egg capsule 13 days after reaching adulthood, and can drop another 20 days later. Adults are abundant February through May and again August through September. Nymphs predominate May through August.
Asian cockroaches are almost identical to German cockroaches in appearance. Chemical analysis by gas chromatography will confirm the species. However, there are also slight morphological differences between B. asahinai and B. germanica. Asian cockroach adults have longer and narrower wings than those of German cockroaches. In most cases, identification is established by the behavior and location of the roaches. Specifically, Asian roaches are capable of sustained flight and normally live in grass and/or leaves; German roaches are not capable of sustained flight and are found residing in our homes, kitchens.
Indoors: Residual sprays such as Suspend SC,
IT will kill roaches that crawl on treated surfaces. However, most
of your elimination methods should be focused on the exterior of the structure. Your
exterior treatment should be applied in late afternoon/ early evening. This is the
time period when Asian flying roaches are most active. Spray the exterior of the
structure, paying close attention to areas around or close to lights (where these flying
roaches are most likely to land) and around windows, doors or other entry points where the
invading bugs enter the building.
If roach baits
are used indoors, do not
spray any rooms where bait is to be applied. Insecticide bug sprays will repel
roaches from your bait, contaminate baits (making them unattractive to pests) and will
also kill the roaches before they can begin the domino effect of the bait.
In summary, you should attack an Asian cockroach infestation with non-chemical and chemical pest control methods:
If you encounter an Asian Cockroach (flying cockroach) problem, do not delay putting a roach elimination program into effect.