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How to Control Asian CockroachesAsian cockroach

Asian cockroaches may have originated in Asia (reportedly Japan), as their name obviously suggests, but these insects are becoming more and more commonly seen in the United States, especially since the 1980’s when they were first discovered in Florida. While performing an inspection in 1986, a pest control operator saw a cockroach which appeared to resemble a German cockroach. When he collected them and observed their behavior, however, he found that they didn’t act quite like German cockroaches, because they flew. The pest control servicemen later learned that they were, in fact, Asian cockroaches.

Asian cockroaches can often be confused with German cockroaches because they look almost identical to one another. However, Asian cockroaches are a slightly lighter brown color than German cockroaches and have slightly longer and narrower wings. Perhaps what most separates the Asian cockroach from the German cockroach is it’s ability to fly whenever they are disturbed which German cockroaches rarely ever do.

Asian cockroaches actually prefer to live outdoors and on human properties, they are reported to be regularly found out on your lawn or garden, especially in in shaded mulched or composted areas. When they come into the house it’s usually via accident because they are attracted to our home lights at night.  Asian cockroaches, like most cockroaches, will eat just about anything but particularly enjoy garden plants like flowers and vegetation, pet food laid outdoors and even organic waste.

Asian cockroaches are notorious for breeding and multiplying at rapid rates and also for spreading germs and carrying disease which can be contracted by humans if they contaminate food. If you have an Asian cockroach problem on your property, you’ve come to the right place because Solutions Pest & Lawn has the products and helpful DIY tips to help you overcome these pesky pests.

 Why Buy These Products


Asian cockroaches are a little trickier to control than indoor cockroaches because they since they are primarily an outdoor pest, many of the indoor pesticides will not be effective in killing them. What works is using a combination of environmental modification methods to make your outdoor area less appealing for Asian cockroaches to hang around as well as pesticides that are better for outdoor use. We have laid out an easy to follow series of steps below which if you carry out accordingly, will eliminate your Asian cockroach problem and keep them from coming back.


Step One: To start, it is important to do a cleanup of your yard and make some modifications to lessen the likelihood of Asian cockroach encounters. Asian cockroaches like shady areas where they have plenty of food options so what you want to do is to cut grass low and do your best to rake up and dispose of all possible leaf litter and cut down on mulch. Since Asian cockroaches are attracted to light, so try your best to limit outdoor lighting at night or change to less attractive light such as Sodium vapor lamps for security lighting and yellow incandescent bulbs for porch lighting are both less attractive to adults. This initial cleanup and modifications can greatly reduce the Asian cockroach population if done right.


Step Two: Once step one’s sanitation and environmental modifcation is complete, you can begin control measures. We suggest starting outdoors using a combination of insecticide concentrates and granules. Use a concentrate such as Demon Max Insecticide or  Spectre 2 SC with either a hose-end sprayer or a handheld sprayer and treat your garden and mulch areas, ground covers, grass and soil around the perimeter of the building. The best time do this is in the late evening because this is when the Asian cockroach population is out and at their most active.  We recommend also using a granular bait such as Niban Granular Bait or Bifen LP Granules. Scatter this granular bait on your lawn.


Step Three: For the cockroaches that made their way indoors you can kill them on contact with Pyrid Aerosol or a concentrate like Reclaim IT which you can also use to create a barrier treatment around your home. Once the cockroaches are dead you can seal up as many points of entry as you can to make it harder for roaches or other bugs to get into your home.


Step Four: Once the Asian roach population has been eliminated, you should work to discourage those flying pests from returning through preventative measures. Regularly inspect your home and yard for roach activity and maintain a regular cleaning routine (daily, weekly and monthly) to make sure the place is properly sanitized and unwelcoming to roaches.  Spray the exterior perimeter of the house with an insecticide like Reclaim IT to create a barrier that keeps roaches out. We also recommend using those granules and spreading them across your yard as these roaches like to hang around outdoors.


Browse our Asian Cockroach control products above and don’t hesitate to email us, call us or chat with us online if you have any questions or concerns.




The Asian Cockroach (Blatella asahinai) they look strikingly similar to German cockroaches with the exception that they have longer and narrower wings, which makes them very capable fliers (being able to fly for over 40 meters), unlike German cockroaches. Most adult Asian cockroaches are about 13 to 16 mm in length and are yellowish and light brown in color with two dark lines across the back of their head. Unlike most cockroaches, they are most active at dusk and have shown a preference to well-lit areas (they aren’t afraid of lights), and bright colored walls and surfaces. They are mainly found outdoors but can also infest homes. Aside from this, Asian cockroaches aren’t afraid of humans, and many times will crawl and fly into the pants of people, unlike other cockroaches which will flee whenever they sense a human is nearby.


Asian cockroaches were first discovered in 1981 on Okinawa Japan, and in the United States in 1986 in areas near Tampa, Florida and Lakeland, Florida.




This type of cockroaches live outdoors near moist landscaping, mulch, gardens, and compost areas and have often been found in large numbers with populations reaching outstanding numbers (25,000 to 30,000) on in some places even bigger to almost 240,000 roaches per acre. In your home you can find them in your yard, calmly foraging in the grass and in leaf litter and landscaping debris.


During the winter they have been observed to burrow into the soil to survive the cold months.




Asian cockroaches have been observed to be omnivorous, eating everything they can put their mouths on, including seeds, flowers, pet food, and sadly even animal feces. They’ve also been observed to provide beneficial control of crops, with their habit of eating and feeding on the eggs of lepidopteran (moths and butterflies) pests.


Health Hazards


Because this species of roaches have been discovered recently there is little research on their capability to transmit diseases, but if their close relation to German cockroaches can prove anything is that roaches are the culprits behind spreading many diseases, viruses and harmful pathogens. Because these species of roaches spend most of their time outside, they have various opportunities to come in contact with animal feces, soil-borne fungi, and other potentially damaging bacteria. Their preference for light is usually the reason they are found indoors, and from here the bacteria that they have come in contact with outside can be easily transferred to food serving surfaces. So there is a great potential for this species, like all roaches, to transmit disease and bacteria throughout the home.


The Life Cycle of Asian Cockroaches


The life cycle of the Asian Cockroach is no different than that of other cockroaches, and it has three different stages: The Egg Stage, The Nymph Stage, and The Adult Stage.


• The Egg Stage: Life for the Asian cockroach begins when the female Asian cockroach lays her egg capsule or ootheca. Each female will be able to create approximately 4 egg capsules in her life, each comprised of 37 eggs.


• Nymph Stage: When the eggs hatch the Nymph stage begins. They will take approximately 67 days to mature into adults. During their instars, they will develop white marking along their midsection. They are mainly seen during May and August.


• Adult Stage: After 67 days have passed and the Nymphs become Adult Asian Cockroaches. The adults are most abundant in February through May and again in August and September. Adults can be light brown in color and have long narrow wings and two parallel black lines on the back of their heads.


Most female Adult Asian cockroaches live about 104 days while adult males only live about 49 days.





What Attracts Asian Cockroaches To Your Home?

Light, readily available food supplies, and a yard with lots of compost material.


Although these Asian cockroaches are mostly found outside, they can make their way indoors when attracted to light. Light is the most common reason why Asian cockroaches enter a home. If you keep your porch lights on throughout the night, this might attract them to your property as once there they might enter through cracks and crevices that lead to light. Once inside your home, you can find them glued to the TV or to your lampshades.


Availability of food supplies is another reason why Asian cockroaches are attracted to your home. Food that might prove enticing to Asian cockroaches includes pet food, crumbs and spills, and dirty dishes.


Although what they are more attracted to in your home is probably your yard. In your yard, these pests can live under your mulch, leaf litters, in natural debris, and hollowed out trees. Being omnivorous they have been known to eat seeds, flowers, and decomposing material, such as animal feces.


Where Do Asian Cockroaches Live?

They mostly live outdoors in tall grassy areas or yards with mulch and compost material.


They are mainly found outside in landscaping with lots of leaf litter and compost material, although they can also live in yards that are well-maintained.


Generally, these cockroaches live outside in your yard, which is where most infestations begin. They are most often found in areas that have mulch or compost. Areas that have large quantities of leaf litter, and tall grassy areas, are areas where these types of cockroaches can be most frequently found.


In fact, in some instances, these cockroaches can infest fields and pastures in large quantities with the largest populations observed ranging from 30,000 to 240,000 per acre.


Can Asian Cockroaches Fly?

Yes, they can fly up to 40 meters.


Yes, Asian cockroaches can fly. They can fly up to 40 meters in a single flight, which is about 120 feet. They can be seen flying at dusk and usually fly toward well-lit areas and light colored surfaces. In homes, they might be attracted to bright screens, such as TV and Computers.


Are Asian Cockroaches Attracted to Light?

These roaches love light, and light is usually the reason why they enter homes.


Yes, Asian cockroaches are extremely attracted to light. Unlike German cockroaches which forage at night, usually in the dark, these roaches have been known to appear most active at dusk, and have no problem flying toward lamps and well-lit areas of your home.


Can Asian Cockroaches Bite You?

There are no known cases of Asian Roaches biting humans.


Roach bites are a rare occurrence, for all species of roaches. In fact, there are only two species that are recorded to have bitten humans, the American cockroach, and Australian Cockroach. Asian cockroaches being categorized as a smaller cockroach, like the German cockroach, which probably makes them less likely to bite.


Still, the Asian cockroach seems to be less afraid of humans than most species of cockroaches, with reports that they will sometimes stick to pants and legs when walking through a yard facing an Asian cockroach infestation, which could probably lead to other types of behaviors toward humans.


But to answer the question, there are no reports of Asian cockroaches biting humans, although one should keep in mind they have no problem approaching humans.



Now that you have learned all the most commonly asked questions about Asian Cockroaches all you have to do now is invest in professional-grade products that will get rid of your Asian cockroach infestation. Solutions Pest and Lawn has over 60+ years experience in the pest control market and delivered solutions to homeowners, DIY enthusiasts, and professional pesticide applicators. When you buy a product from Solutions Pest and Lawn you get:


• Unparalleled Customer Service (phone, email, live chat)

• Same Day Shipping (1 - 4 days standard)

• Easy Return policy

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• And 60+ Years of Experience


If you’re ready to take pest control in your hands, don’t hesitate to give us a call, and we’ll help you in every step of the way with whatever pest you might be facing. Give us a call and find out why over 500,000 customers have trusted us for over 60 years.


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