Getting rid of asian ladybugs

Table of Contents

Asian Lady Beetles

Are They Beetles?

Asian lady beetles are true beetles in the beetle family Coccinellidae. While they are commonly called ladybugs or ladybirds, pest management professionals generally prefer to call them ladybug beetles or ladybird beetles.

Life Cycle

There are about 5,000 species of Asian lady beetles worldwide, so depending on the species and habitat, there is a large variation in this insect’s life cycle. For example, some lady beetles are predators, while others are plant feeders. However, all lady beetles undergo complete metamorphosis – four distinct life stages.

  1. Egg Stage

    Females lay eggs in clusters on the underside of a plant leaf or twig. Generally, the female will choose a plant that is infested with their prey – aphids or scales. Eggs are laid during the spring and early summer. One fertile female can produce up to 1,000 eggs, and eggs hatch in about five days.

  2. Larval Stage

    Larvae have been described as looking like very tiny alligators. If predators, the larvae feed upon their prey insects and may often consume some of the un-hatched eggs if prey is scarce. The larvae go through four instars, molting and becoming larger at each instar stage. The larval stage takes about 1-2 weeks to complete.

  3. Pupal Stage

    This is the insect’s resting stage when it goes through the transformation into an adult. Depending on the species and the environmental conditions, the pupal stage lasts about 3-12 days.

  4. Adult Stage

    Newly emerged adults feed on the same prey as the larvae and remain active until the weather turns cold when they seek protected overwintering sites. Depending on the species and location, Asian lady beetles produce from one to several generations per year.


These pests take around one month to grow from egg to adult and can live for as long as about three years.

More Information

Lady Bug Traps Lady Bug Infestations

Sure, finding Asian Lady Beetles in your garden is good luck, but in your house?

Suddenly, lady beetles seem slightly less attractive when they are crawling up your laundry room wall and falling from the ceiling. I’m a fan of nature, but I’m also a fan of clean. Something about sharing space with any kind of beetle — lady or not — seems grubby.

Irrational fear

I don’t know about you, but whenever I encounter a bug — a single bug — in my house, I have this irrational fear that hundreds will start crawling out of the walls. Before I know it, I’ll be overrun.

Fortunately, I missed the perennial stink bug infestation. However, missing out on stink bugs must be an open invitation for Asian Lady Beetles.

Incidentally, it’s not the worst thing that could have happened. During hibernation, lady beetles don’t feed and can’t reproduce. They are not multiplying before my eyes. However, like stink bugs, lady beetles like to rest for the winter in groups.

When it comes to lady beetles, once you’ve seen one there are probably more. On the bright side, they won’t damage your home or get into your food. They are not poisonous or carriers of human disease. They will not reproduce or lay eggs indoors. Hopefully, they will leave you alone after they emerge in the spring.

On the downside, once they are in your house you’ll have to share your space throughout the fall, during winter warm-ups and into the spring before they make their exit.

At risk

Like any other pest, lady beetles have preferences when choosing a place to invade. Here are some factors that may make your home more attractive:

  • Lady beetles are attracted to lighter colors: whites, grey, yellows. Light-colored houses, especially those with longitudinal color contrasts (like dark shutters), are more likely to be sought out.
  • They prefer homes close to trees or woods.
  • Highly illuminated southwest-facing walls are more attractive to lady beetles.
  • A preexisting cluster of lady beetles will usually attract more.

Inside your house

The best way to keep Asian Lady Beetles out of your house is by preventing them from finding a way inside. Once they’ve nestled into a nice cozy hibernation spot, it’s hard to force them out.

Lady beetles will begin seeking shelter when outside temperatures fall in September and October. They will find their way into tight cracks and crevices, such as under siding, in wall voids or clustered tightly in the corners of attics and garages. From there, they’ll try to make their way into your home by squeezing through small cracks in window sills, door jams or foundations. Once they are settled inside, they will hibernate as long as it remains cold outside — and I think that’s key.

When temperatures warm up, like they did last week or on an unusually warm winter day or early in the spring, the beetles will emerge. Then they will become a nuisance. Conveniently, they are attracted to living areas where temperatures are moderate, so you’ll know when they’re awake.

Imagine my surprise when I discovered about 30 lady beetles huddled in the corner of my laundry room last weekend after no signs prior to the sighting. It wasn’t that they weren’t there all the time, they simply found a way indoors and concentrated there.

Too little too late

There’s really only one option once you’re supporting a colony of lady beetles — vacuuming. The best thing you can do is vacuum them up as you see them. Just be sure to get rid of the vacuum bag, or place a rag between the hose and dust collection bag to trap them and release them outside.

You may also try to use traps inside your home to remove lady beetles. One available trap you can try is a cardboard box with a sticky inner lining; however, there is no evidence lady beetles are attracted to it beyond accidentally flying into it and becoming trapped. The second option is a black light trap; however, these are only effective at night when the rest of the room is dark.

Attempting to kill lady beetles isn’t recommended because they benefit agriculture and horticulture by controlling aphid and scale infestations. Plus, when they are bothered, they can secrete an unpleasant odor and a yellowish fluid that can stain curtains and clothing.

Using insecticides inside is also a bad idea for a few reasons. First, it’s relatively ineffective, as any beetles hidden out of the foggers reach will survive. And it’s a bad idea to kill beetles you can’t see to clean up. because it’s possible another pest will begin to feed on the corpses. Lastly, pesticides are poisonous and using them inside for any reason is a risk.


When it comes to Asian Lady Beetles, like so many other things, an ounce of prevention is worth a pound of cure. The best way to prevent beetles from getting indoors is to make sure they can’t get indoors.

Sealing entry points. Sealing cracks and openings is the best way to prevent lady beetles from entering your home. The perfect time to take this preventative measure is in late spring or summer before adults begin searching for overwintering sites. Make sure to seal cracks around windows, doors, soffits, fascia boards, utility pipes and wires. It’s also a good idea to repair any damaged window screens and install screening behind attic vents.

Exterior barrier treatment. If lady beetles are a yearly problem, you may want to consider using pesticides outdoors as a perimeter treatment during late fall. Some examples of effective insecticides you can find at your local hardware store include those containing bifenthrin, cyfluthrin, cypermethrin, deltamethrin and permethrin. Double-check to make sure the product you’ve selected is labeled for exterior use and apply it around doors, windows, rooflines and around your foundation. Pay particular attention to the south and west sides of your house where the insects prefer to congregate.

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  • How to seal Asian lady beetles, stink bugs out of your house


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  • University of Minnesota Extension
  • United States Department of Agriculture
  • National Park Service
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  • Oklahoma State University


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Asian Lady Beetle Infestation of Structures

ENTFACT-416: Asian Lady Beetle Infestation of Structures | Download PDF

by Michael F. Potter, Ric Bessin, and Lee Townsend, Extension Entomologists
University of Kentucky College of Agriculture

Large numbers of lady beetles (ladybugs) infesting homes and buildings in the United States were first reported in the early 1990s. Ladybugs normally are considered beneficial since they live outdoors and feed on plant pests.

Asian lady beetles vary in color. Note the whitish area with M-shaped marking behind the head.

One species of lady beetle, Harmonia axyridis, can be a nuisance however, when they fly to buildings in search of overwintering sites and end up indoors. Once inside they crawl about on windows, walls, attics, etc., often emitting a noxious odor and yellowish staining fluid before dying.

In many areas of the U.S., these autumn invasions are such a nuisance that they affect quality of life.


The Asian Lady Beetle, Harmonia axyridis (Pallas), is relatively new to this country. The beetle is native to Asia (e.g., China, Russia, Korea, Japan), where it dwells in trees and fields, preying on aphids and scale insects. The first field populations in the United States were found in Louisiana in 1988. Since then the beetle has expanded its range to include much of the U.S. and parts of Canada. Earliest records in Kentucky date back to a few specimens collected in Hickman County in 1992.

During the 1960s to 1990s, the U.S. Department of Agriculture attempted to establish the Asian lady beetle to control agricultural pests, especially of pecans and apples. Large numbers of the beetles were released in several states including Georgia, South Carolina, Louisiana, Mississippi, California, Washington, Pennsylvania, Connecticut and Maryland. No such releases were ever attempted in Kentucky, and their occurrence here is probably due to northward migration from other southern states. Some scientists believe that current infestations in the U.S. originated not from these intentional releases, but from beetles accidentally transported into New Orleans on a freighter from Japan.


Adult Asian lady beetles are oval, convex, and about 1/4-inch long. Their color can vary widely from tan to orange to red. They often have several black spots on the wing covers, although on some beetles the spots may be indistinct or entirely absent. Multi-spotted individuals tend to be females while those with few or no spots tend to be males. Most beetles have a small, dark “M” or “W”-shaped marking on the whitish area behind the head.

Eggs are yellow, oval, and typically are laid in clusters on the undersides of leaves. The immatures (larvae) are often orange and black and shaped somewhat like tiny alligators. Larvae complete their development on plants where their primary food (aphids) is abundant. The non-mobile cocoon (pupal) stage remains attached to vegetation by its molted skin, but occasionally may be found clinging to exterior walls of buildings. The average time from egg to adult is about one month and there are multiple generations per year. Individual beetles can live up to three years.

At present, Asian lady beetles appear to have few natural enemies. A small percentage of beetles are parasitized by tiny wasps and flies, while up to 80% are infected by a fungus in central Kentucky, which is only occasionally lethal. As a defense against predators, the beetles secrete a foul smelling yellowish fluid from their leg joints when disturbed. Some mortality occurs at sub-freezing temperatures, although survival is enhanced within buildings and other protected locations if adequate moisture or humidity is available.

In its native land, the Asian lady beetle is mainly tree-dwelling, living in forests and orchards. In Japan, it is also abundant in soybean fields. In the U.S., the beetles inhabit ornamental and agricultural crops, including roses, corn, soybeans, alfalfa and tobacco. During spring and summer, the larvae and adults feed mainly on aphids, consuming hundreds per day.


As autumn approaches, the adult beetles leave their summer feeding sites in yards, fields and forests for protected places to spend the winter. Unfortunately, homes and buildings are one such location. Swarms of lady beetles typically fly to buildings in September though November depending on locale and weather conditions. In Kentucky, most migration to buildings occurs in October. Beetle flights are heaviest on sunny days following a period of cooler weather, when temperatures return to at least the mid-60s. Consequently, most flight activity occurs in the afternoon and may vary in intensity from one day to the next.

Lady beetles are attracted to sides of buildings receiving afternoon sun.
Contrasting light-dark features are especially attractive.

Studies have shown that Asian lady beetles are attracted to illuminated surfaces. They tend to congregate on the sunnier, southwest sides of buildings illuminated by afternoon sun. Homes or buildings shaded from afternoon sun are less likely to attract beetles. House color or type of construction (concrete, brick, wood/vinyl siding) is less of a factor for attraction than surface contrast.

Contrasting light-dark features tend to attract the beetles — dark shutters on a light background, light shutters on a dark background, windows edged with light-colored trim, gutters and downspouts on contrasting siding, etc. Dwellings near woods or fields are especially prone to infestation, although those in other locations can be infested as well.

Asian Lady Beetle Congregation

Once the beetles alight on buildings, they seek out crevices and protected places to spend the winter. They often congregate in attics, wall cavities, and other protected locations.

Typical locations include cracks around window and doorframes, behind fascia boards and exterior siding, and within soffits, attics, and wall voids. Structures in poor repair with many cracks and openings are most vulnerable to infestation.

As temperatures warm in late winter/early spring, the beetles once again become active. This usually occurs first on the sunnier, southwest side of the building. As awakening beetles attempt to escape to the outdoors, some inadvertently wander inward, emerging from behind baseboards, walls, attics, suspended ceilings, etc. Since lady beetles are attracted to light, they are often seen around windows and light fixtures.


Asian lady beetles generally do not injure humans and are mainly a nuisance. Unlike some household pests (e.g., fleas and cockroaches), they do not reproduce indoors — those appearing in late winter/early spring are the same individuals that entered the previous fall. Lady beetles do not attack wood, food or clothing. Nonetheless, some householders detest finding any insects indoors, and hygienic establishments such as hospitals have zero tolerance for contaminants of any kind.

Asian Lady Beetle Stain

Besides being a nuisance, the beetles emit an acrid odor and can stain surfaces with their yellowish secretions when disturbed (volatile compounds used in defense against bird and other vertebrate predators).

Although Asian lady beetles do not transmit diseases per se, recent studies suggest that infestations can cause allergies in some individuals, ranging from eye irritation to asthma.

People should avoid touching their eyes after handling the beetles, and should consult a physician if they suspect they are having an allergic reaction. When large numbers of beetles are flying in the fall, they often land on clothing and occasionally will bite or ‘pinch’ if in contact with skin. In nature, lady beetles eat other insects and have chewing mouthparts. The bite feels like a pinprick and is seldom serious.

Asian lady beetles are also becoming a concern of the wine industry. Due to their noxious odor, even small numbers of beetles inadvertently processed along with grapes can taint the flavor of wine.


People’s reaction to lady beetles varies widely from tolerance to revulsion. The following management tips are provided when the beetles become a serious nuisance within a dwelling.


Once the beetles are indoors, the easiest way to remove them is with a vacuum cleaner. If you later wish to release the beetles outdoors, place a handkerchief between the vacuum hose and the dust collection bag to act as a trap. A broom can also be used, but is more likely to result in staining when beetles emit their yellowish defensive secretion.

Sealing Entry Points

Sealing Entry Points

Sealing cracks and openings is the most permanent way of preventing lady beetles from entering buildings. The time to do this is in late spring or summer, before the adults begin flying to buildings in search of overwintering sites. Cracks should be sealed around windows, doors, soffits, fascia boards, utility pipes and wires, etc. with caulk or other suitable sealant.

Larger holes can be plugged with cement, urethane foam or copper mesh. Repair damaged window screens and install screening behind attic vents, which are common entry points for the beetles. Install tight-fitting door sweeps or thresholds at the base of all exterior entry doors. Gaps of 1/8″ or less will permit entry of lady beetles and other insects. Gaps under sliding glass doors can be sealed with foam weather stripping. These practices will also help prevent entry of flies, wasps, crickets, spiders and other pests. Some householders may find it more practical to hire a pest control firm, building contractor or painter to perform these services (For more on this topic see University of Kentucky entomology fact sheet, How to Pest-Proof Your Home).


Indoor Treatment – Insecticide foggers, “bug bombs” or sprays are generally not recommended for eliminating beetles indoors. Insecticides applied indoors for lady beetles tend to be ineffective and may stain or leave unwanted residues on walls, countertops and other surfaces. A vacuum is more sanitary and effective. Attempting to kill beetles hibernating in wall cavities and other protected locations is seldom effective. A better approach is to take preventive measures to reduce beetle entry in subsequent years.

Exterior Barrier Treatment – While sealing cracks and openings is a more permanent way to limit beetle entry, the approach is time-consuming and sometimes impractical. There can be countless cracks associated with eaves, siding, vents, etc. where insects can enter. On multi-story buildings, sealing becomes even more difficult.

Exterior Barrier Treatment

If lady beetles are a perennial problem, owners may want to hire a professional pest control firm. Many companies apply insecticides to building exteriors in the fall, which helps prevent pest entry. Fast-acting residual insecticides can be sprayed in a targeted band around windows, doors, eaves, soffits, attic vents, and other likely points of entry.

Some of the more effective insecticides used by professionals include Demand (lambda cyhalothrin), Suspend (deltamethrin), Talstar (bifenthrin) and Tempo (cyfluthrin). Effective over-the-counter versions of these products include Spectracide Triazicide, Bayer Advanced Powerforce Multi-Insect Killer, and Ortho Home Defense Max. Purchasing these products in concentrated (dilutable) form will allow larger volumes of material to be applied with a pump-up or hose-end sprayer.

To be effective, barrier treatments should be applied before the beetles enter buildings to overwinter. In Kentucky, the proper timing for such treatments is typically late-September to early October although this will vary with seasonal conditions. During late winter or early spring, barrier treatments are ineffective since the beetles gained entry the previous autumn.

Other Approaches

Other approaches have been suggested to alleviate problems with Asian lady beetles. Ladybug “houses” sold in garden supply catalogs will have no effect in keeping the beetles out of your home. Light traps can be useful for capturing flies and lady beetles in dark confined spaces such as attics, but will capture relatively few beetles entering living spaces in the fall or emerging from hidden locations the following spring.

Unfortunately, there is no “quick fix” or easy answer to annual lady beetle invasions. Vacuuming, pest proofing and properly timed exterior insecticide treatments can provide relief but will not prevent entry of every single beetle.

Issued: 10/93
Revised: 6/05

CAUTION! Pesticide recommendations in this publication are registered for use in Kentucky, USA ONLY! The use of some products may not be legal in your state or country. Please check with your local county agent or regulatory official before using any pesticide mentioned in this publication.


Images: M. Potter, University of Kentucky Entomology.

15 Home Remedies To Get Rid Of Ladybugs (Asian Lady Beetles)

If you own a garden, ladybugs could actually be beneficial to you considering that they are predators to some garden pests such a aphids and spider mites.

However, they often leave a yellow stain and a nasty stink when they sense danger. They also could leave this stinking yellow stain on our clothes, walls, and floor boards.

Here are some good practices, to consider, when dealing with ladybugs;

  • Avoid picking up ladybugs with your hand as they may stain you. Instead, sweep them away.
  • Seal off cracks and crevices these bugs can use to access your home.

Below are 15 home remedies, ladybug repellents and ladybug traps to get rid of ladybugs;

1. Camphor And Menthol

Ladybugs are sensitive to the strong odor of camphor and menthol (mint leaves). Hence, these ingredients can be used to repel them in a natural way.

Take equal amounts of camphor and menthol and mix them with water to form a solution. Fill a spray bottle with this solution. Shake well and spray around the home in areas where you find ladybugs. Don’t forget to spray near their hiding places. The strong pungent smell will make them leave your home in no time.

2. Get Rid Of Ladybugs With A Vacuum Cleaner

If you find a lot of ladybugs inside your home, you may get rid of them with a vacuum cleaner. Just put the device to work and collect all the ladybugs in the dust bag.

Most of these bugs will not die inside the vacuum. As you collect all of them, you may empty the dust bag, filled with ladybugs, in your garden. Ladybugs feed on aphids and protect your garden from probable damage.

3. Paint Your Walls With Dark Colors

Ladybugs get attracted towards light and light-colored objects. If you live in an area which has lots of ladybugs, you may want to get your walls colored in a dark shade. This will keep them away from your house in a natural way.

4. Use Bay Leaves

Bay leaves are a great repellent and can repel a large variety of insects as well as rodents. Spreading bay leaves around the house will work well in keeping ladybugs away.

These tiny insects cannot stand the distinct odor of the bay leaves and will soon move away from your home. You may tie some bay leaves in a small bag to hang around the affected area to get rid of the ladybugs.

5. Sprinkle Diatomaceous Earth

Diatomaceous earth is an excellent remedy for insects and pests. It kills them in an effective way without causing any harm to humans. This non-toxic powder is obtained from fossilized diatoms and is used extensively in agriculture as an anticaking agent.

Sprinkle diatomite (diatomaceous earth) on the affected areas and around the house. It has a dehydrating effect on the ladybugs which eventually causes the death of these organisms.

6. Ward Them Off With Cloves

The distinct smell of cloves is irritating to the ladybugs. When cloves are placed in the affected areas where there is severe ladybug infestation, the insect is found to get repelled and leave that area.

Make small bags containing cloves and place it in the heavily infested areas. A few drops of clove oil mixed with water can also be sprayed in the problem area to repel the bugs effectively.

7. Plant Mums (Chrysanthemum)

Ladybugs hate mums and you can easily repel them by planting mums near your house’s entrance and around the windows. It also keeps other insects and flies away from your home. Due to this reason, mums constitute the main ingredient in flea powder.

8. Try Boric Acid / Borax

Sprinkling boric acid is highly beneficial in repelling ladybugs without causing any harm. Make sure you do not sprinkle directly on their body. Just put a little amount of boric acid near the places where your spot them most.

Some species of the ladybug would sense the danger and will release a foul-smelling substance from their body. Other ladybug species would sense the signal of danger and will naturally be repelled from your home.

9. Citrus Scent

Any citrus smell will repel a ladybug, and we can use it to get rid of them. Mix some wild orange essential oil or lemon essential oil with water and spray it near their entryways and the areas infested with them. They will soon be leaving your home and search for a new place to thrive.

10. Use A Light Trap

Since ladybugs get attracted toward bright light, you can create homemade light traps to catch these insects. Using black (Ultraviolet) light bulb is more effective in luring these spotted insects.

11. Use Dishwashing Soap

A solution made with dishwashing soap and water would help in killing the ladybugs and eradicating them from your house. Spray the solution over the infested surface to kill the ladybugs and clean away any odor left by them.

You may also make a trap by adding some juice and sugar in the solution and placing it in a dish. The ladybugs will be lured by the scent of it and will try to sit on it. As a result, they will get drowned.

12. Use Ammonia

If you want to get rid of ladybugs instantly, use ammonia to deter them. The strong smell of ammonia is irritating to most insects including ladybugs. Take some ammonia solution and soak up a rag in it. Use it to wipe the doors and windows where they tend to gather.

Also, wipe other surfaces prone to ladybug infestation. An ammonia-based cleaner also acts as an effective ladybug repellent.

13. Seal Their Entryways

As winter approaches, ladybugs may find their way in your home to find a place for hibernation. Once they are out of hibernation, in the spring, there would be an increase in ladybug infestation severity.

The best way to get rid of them is to prevent them from entering your home. Seal all the gaps in doors and windows, no matter how small it is. Use caulk to eliminate gaps and cracks from where these insects may enter.

14. Hang Flypapers

Flypapers are effective in trapping flies in your home, but did you know it can trap ladybugs too? Well, it may save your home from an infestation when used the right way. Hang flypapers near the doors to trap them effectively.

You may make your own sticky trap by coating the sides of a stiff paper strip with fruit smelling sugary syrup. Once you catch a lot of ladybugs, put them in a plastic bag and seal it before discarding in the trash.

15. Freeze Them

Ladybugs help in reducing aphids from plants and can be highly beneficial for farmers. If you do not want to kill them, you may help them find a new place to survive.

Just collect all of the ladybugs in a vacuum cleaner. Make sure the dust bag is clean before you start collecting them with the device. Once you are done vacuuming, freeze the ladybugs in ice cubes. This will not kill them but reestablish them, when they are released at a warmer temperature, to their natural vegetation.

As the spring approaches, you may allow the ice cubes to melt in your garden and release the ladybugs.

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Smelly stink bugs aren’t the only critters trying to crawl into your home this fall. Asian lady beetles are also looking for warm shelter right now— and infesting houses across the country as a result.

Places in the South and Midwest are currently experiencing large swarms as the pests invade buildings looking for spots to overwinter. Even worse, if you crush the little intruders they can emit a yucky odor and even stain surfaces with a yellow fluid that acts as a defense mechanism.

While they’re commonly called ladybugs, Harmonia axyridis is actually a specific species within the lady beetle family native to Asia. The U.S. Department of Agriculture attempted to establish the aphid-eaters here from the ’60s to ’90s to protect crops, and they’re pretty helpful in that regard. But their annoying wintertime habits continue to plague homeowners now more than ever.

You’ll find the tiny bugs mostly on sunny, light-colored homes and structures as they look for cracks and crevices as potential entry points. Ranging in color from yellow to red, Asian lady beetles have a trademark M- or W-shaped marking behind the head, but can have many or no spots.

To stop their encroachment, Orkin recommends sealing up gaps and torn screens around your exterior. The good news is that shoring up the outside of your home will also deter many other pests, including roaches and ants. Pesticide applied as a barrier before bugs arrive may help next year, whether you hire a professional or carefully apply it yourself.

Then deal with the pesky beetles that made their way inside by pulling out the vacuum. Sucking up the bugs avoids potential stains (and smells). Dr. John Hopkins, an extension entomologist for University of Arkansas, also told KARK you can use blacklight traps. Experts do not advise using indoor pesticides, bug bombs or sprays since they don’t prevent more bugs from coming in.

Even if you can’t nab all of beetles, rest easy knowing they’re not much more than a nuisance. While the bugs will occasionally bite, the pinprick-like pinch is seldom serious, according to University of Kentucky Entomology Department. Just be aware that some studies suggest that the beetle infestations may cause allergies in some people, and they should consult a physician if they suspect that’s the case.

Luckily, as the temperature continues to drop the number of annoying Asian lady beetles will too — until they wake up again in the spring, that is.

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How can I get rid of Asian ladybugs in my house?

As the days get shorter and nighttime temperatures drop, many people are starting to notice Asian ladybugs aggregating in or on their homes. While ladybugs are usually considered beneficial in the garden because they eat insect pests like aphids, they can be a nuisance in the fall when they invade buildings. Asian ladybugs are “overwintering” insects that hibernate as adults and spend the winter in protected places such as under tree bark or beneath the siding of buildings. Some insects accidentally make their way indoors and can be found crawling around windows, walls and ceilings. Fortunately, they are not dangerous to people, pets or the structure of the home and do not breed or lay eggs inside of buildings.

Habits and Description

Asian ladybugs were introduced to the United States from Asia. Some were purposefully released as a biological control for agricultural pests. Others may have traveled on freight coming from Asia. Since the 1990s they have become established throughout much of the United States. Unlike other introduced insects, Asian ladybugs do provide some benefits. Asian ladybugs prey on aphids, mealybugs, scales and other soft-bodied pest insects in fields, forests and gardens, similar to their native counterparts in North America. In general, they are considered valuable predators in the landscape.

Asian ladybugs are quite variable in appearance. Their coloration can range from tan to orange to red. Their wing covers are either unmarked or covered with as many as 22 black spots. Most individuals have a black M-shaped marking in the white area behind their heads, a feature that most easily distinguishes Asian ladybugs from other species.

Getting Rid of Asian Ladybugs

The best way to manage Asian ladybugs is to prevent them from getting inside the home in the first place. Remove air conditioners when they are no longer needed and take care to seal up cracks around windows and doors, particularly on the sunny southern and western sides of the house. Insects that get inside can be swept into a jar and released outdoors or sucked up with a vacuum cleaner (empty the vacuum bag promptly to prevent ladybugs from escaping). When ladybugs are disturbed, they often release an unpleasant odor and produce a yellowish staining fluid which can damage light colored rugs and upholstery. Staining is less likely to occur when vacuuming as opposed to sweeping them up. On rare occasions, Asian ladybugs may bite if picked up with bare hands. When threatened, they might use their chewing mouthparts to pinch the skin. These bites are not serious—the equivalent to the feeling of a pinprick—and can be avoided by wearing gloves.

Insecticides are not recommended for managing these pests as they work too slowly to control the problem and are toxic to people. Since lady bugs are beneficial predators, focus your energy on sealing up cracks where they might be getting into your home.

Some garden supply companies sell ladybug houses that are designed to provide hibernating habitat for ladybugs in the garden. While these houses might provide shelter for some ladybugs, they will not prevent ladybugs from coming into the home.

Several other insect species can invade homes in the fall but, similarly, they do not attack people or threaten homes. If you have Asian ladybugs or any other type of seasonal home-invading insect, do not panic. Once the temperatures go down, so will their activity.

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The Asian beetle is just another term used for ladybugs, those tiny red insects with black spots on their backs. Found all over the world, these bugs are typically a welcomed sight in gardens and farms. But not all species of this beetle are beneficial – some are destructive. And even the harmless kind can gather in hundreds near your home when temperatures cool off, waiting to hibernate in your home.

There are few reasons to want to get rid of ladybugs, but if you’re dealing with the destructive kind or just don’t want a swarm of these bugs in your home for the winter, we’re going to show you the best ways to get rid of them.

First, let’s take a look at the destructive species of Asian beetles, so you know whether you’re dealing with the harmless or damaging type.

【Read more about Ladybugs】

What Types of Asian Beetles Are Destructive?

Most ladybugs eat aphids and other scales, which is extremely beneficial in the garden. Aphids suck the sap out of plants, causing serious damage over time. Lady beetles will devour these destructive pests, and some species are particularly aggressive feeders.

But there are some species of the Asian beetle that aren’t so friendly. These guys eat plants and destroy crops, making them more of a nuisance.

Plant-eating Asian beetles include:

Bryony Ladybird

This species of the Asian beetle feeds on the leaves of white bryony as well as other cucurbits (or gourds). They’re between 5mm and 7mm in length on average, and most are orange in color with 11 black spots.

Squash Beetle

The squash beetle is commonly found in the eastern United States and feeds on cucurbitaceous plants (or gourds). These beetles are yellow in color with seven large spots on each wing covering and black spots on their heads.

Mexican Bean Beetle

The Mexican bean beetle is the most famous of destructive ladybirds, and is commonly found in both Mexico and the eastern United States. As their name suggests, these beetles feed on beans and legumes, including: soybean, azuki, mung, cowpea, lima, clover and alfalfa.

These Asian beetles look very similar to their harmless counterparts. They are oval in shape, orange in color and have eight spots on each wing covering. On average, these pests are between 6mm and 7mm in length.

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28-Spotted Potato Ladybird

The potato ladybug is larger than most other ladybird species, and they’re orange in color with 13 spots on each wing cover and two spots on the thorax (28 total).

And while these bugs love potato leaves, they love other crops as well, including: chilies, eggplants, tomatoes, cucumbers, melons, zucchini, pumpkins and more.

The potato ladybird appears to be a bigger problem in Australia than many other parts of the world, but they can do some serious damage to your garden in a short amount of time.

How to Get Rid of Asian Beetles

You know which types of Asian beetles are destructive and you want to get rid of them. Or maybe you have an infestation of ladybugs in your home that you’d rather not shelter for the winter.

Getting rid of these beetles isn’t as easy as you might think. They won’t nest in your home, but their pheromones will attract other ladybirds, making it appear that the population is swelling.

Asian beetles release a type of pheromone that attracts other ladybirds and lets them know that they’ve found a great place to hibernate for the winter. These signals can be detected from up to 1/4 of a mile away, and the chemical scent isn’t easy to get rid of.

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In fact, this scent can remain on the interior and exterior walls of your home for years.

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1. Vacuum – and Vacuum Some More

If you’re infested with ladybirds, one of the simplest and most effective ways to get rid of them is to vacuum them up. Be sure to dispose of the contents of the bag (or container), or release them outside of your home.

Ladybugs are only in your home because they want to hibernate for the winter. They’re not interested in breeding and taking over your home. If you’re taking the humane route, just vacuum them up and let them loose outside.

To make sure you’re releasing just the ladybugs – not dust and dirt – try placing a knee-high stocking on the end of your vacuum wand and securing it with a rubber band. The ladybirds will get stuck in the stocking, and the rest of the debris you pick up will go right through to the canister or bag. This makes it easier to release these critters when you’re done.

Just don’t let them sit in your vacuum bag – they’ll crawl right out.

2. Seal Potential Entryways

To keep ladybirds from coming into your home, seal up any openings near your windows, doors, eaves, pipes, outlets and any other places they might get in. If you have larger crevices, you may need to use a foam sealant. Otherwise, caulk will work just fine for sealing up cracks and smaller openings.

Check all of the screens in your home as well. Large gaps or holes in screens are one of the most common ways ladybugs get into homes.

While this method won’t push Asian beetles out of your home, it will keep them from coming back in.

3. The Ladybug Light Trap

Light traps are also an effective way to trap ladybugs, but this method will kill them. These traps, which can be found in home improvement stores, use light and pheromones to lure in Asian beetles, and a water solution drowns them.

The trap includes a funnel top, which is designed to channel the bugs into a plastic jar base below. The light and the pheromones attract the ladybirds to the funnel, where they’ll slide down into the jar and drown.

4. Diatomaceous Earth

Landscapers recommend placing food-grade diatomaceous earth (DE) around the perimeter of your home to keep ladybugs out and get rid of any that might be trying to get inside – or outside.

DE is a natural insect deterrent, so they’ll stay away from this powdery substance if they can. If they do happen to walk through it, the substance will pierce through their exoskeleton, causing them to dehydrate and die.

Lining the perimeter of your home with DE will also keep out and kill other insects, which is always a bonus.

5. Insecticide

One effective way to prevent ladybug migration is to spray a pesticide on the exterior walls and siding of your home. The most common pesticides used for this purpose are pyrethroids and pyrethrins.

Pesticides should be applied with care, as they are toxic to certain animals, including your pets, and can be dangerous to spray near kids.

Any ladybirds that come in contact with the spray will die shortly afterward.

If you have an infestation of Mexican bean beetles, potato beetles or squash beetles, you can also use pesticides to prevent them from destroying your crops. But you must consult with local authorities to find out which pesticides are safe and approved for use in your area.

6. Ladybug Houses

Maybe you want to keep Asian beetles out of your home, but you don’t want to kill them. You might even want them around to keep pests out of the garden. Placing a ladybug house in your yard will give these insects a place to hibernate for the winter, so they stay out of your home.

Even when ladybugs are active, these houses provide shelter from predators and poor weather, like wind and rain.

There are many varieties of ladybug houses, and the vast majority are constructed with wood. You’ll find variations that are pole-mounted, and others that sit on the ground.

If you have a garden, it’s worth the cost to place one of these houses in your yard.

7. Plant Mums

Another great way to naturally keep ladybirds out of your home is to plant mums around the perimeter of your house. Ladybugs do not like mums, so they’ll stay away. Planting them near windows and along the foundation will help keep them from getting inside.

Mums deter other insects, too. In fact, mums are a key ingredient in many flea powders.

Alternative Way to Deal with Ladybugs: Wait It Out

If you’re not too keen on the idea of killing ladybugs and the other methods above are not working, you have one alternative: wait it out. Ladybugs are only looking for a place to hibernate for the winter. They won’t damage your home or reproduce. They just want shelter. And when the weather gets warmer, they’ll head right back to the great outdoors – where they belong.

After these bugs do leave your home, make sure that you take preventive measures to keep them from coming back next year. Seal entryways, lay down diatomaceous earth and maybe even go as far as placing a ladybug house in your yard.

Prevention is the key with ladybugs because once they’re in your home, it’s difficult to get rid of them.

How to Keep Ladybugs Out of the House: 9 Tips That Work

How Do You Stop a Ladybug Infestation?

Summer is just around the corner, and that means the return of many animals and insects from the long winter slumber. Of course, this also means that any “overwinter” pests that found their way inside your home at the start of last winter will be ready to emerge.

One of these unwanted tenants is the cute little spotted beetle known as the ladybug. Or, at least you might think your home is being overrun by ladybugs. With over 5,000 species of ladybug over the world, it can be easy to mistake this docile garden resident with another species that can be much more troublesome. If you are having a problem with ladybugs in your home, here are a few things you should know.

The Trouble with Ladybugs

The ladybug, also known as the lady beetle or ladybird beetle, is often confused with an invasive species called the Asian lady beetle. While ladybugs are helpful garden pest exterminators, they tend to be more docile insects. They tend to stay outside when the temperatures drop.

Asian lady beetles, on the other hand, overwinter bugs. While they perform the same function as a typical ladybug, these insects tend to be a bit more aggressive. They can even bite. As overwinter pests, the Asian lady beetle will hide out when temperatures drop and reemerge in the Spring. They tend to amass on windows, lights, and other areas with warmth and light.

Identifying the Culprit

Ladybugs are harmless and helpful. Asian lady beetles are not so beneficial. They both consume garden pests like aphids and don’t congregate in large numbers, but the Asian lady beetles seek shelter outdoors.

The Asian lady beetle came over in the 1970s. They are brownish-orange in color, not the vivid red like ladybugs. They are bigger and can be identified by the white M on their heads. Lady beetles also let off a strong scent to alert other beetles of danger. This pest multiplies quickly and often leaves behind yellow stains. Where normal ladybugs die off in the fall, the Asian lady beetles hibernate.

They enter buildings in the spring or as winter approaches. These pests amass in dark, warm, secluded places and they are more aggressive than normal ladybugs. They can attack non-pest insects and be dangerous to pets, especially if you have a curious cat or dog that intends to taste test them.

The sheer quantity can get stuck in their mouths, but aside from that, they aren’t typically dangerous. Still, having a stinky mass of beetles swarming around your windows isn’t pleasant. If you find yourself with an Asian lady beetle infestation, here are nine tips to help you put a stop to them.

1. Winterize your home

The best way to stop an Asian beetle infestation, as well as many other pest issues, is to winterize your home. Don’t give them a way in. Plug up holes, seal doors, and caulk your windows. Inspect your home’s exterior and interior to make sure there is no way for them to get in. If they can’t find a way inside, there’s no need to worry about an infestation.

2. Keep A Garden

A simple way to keep them outside is to provide ladybugs with a place to feast. Give them an alternative to your home by planting a garden. Ladybugs and Asian beetles both love feeding on garden pests, like aphids. It doesn’t matter if you are planting edible treats for your family or lovely flowers, having flora around your home can be enticing enough to keep these insects out.

3. Plant Mums

If you don’t want lady beetles anywhere near your home or garden, or you don’t want to go through the effort of planting an entire garden, try planting or potting some mums. Lady beetles do not like mums and will avoid them. If you want to ward these pests away, keep plants just outside the house at entry points: the doors, the windowsills, or even make a window box. Mums are a simple, inexpensive way to keep the lady beetles away.

4. Act Immediately

Sometimes, even with all the prep, you can find yourself face to face with a lady beetle infestation. The best course of action is to act quickly once you notice them. Asian beetles multiply quickly. Your infestation can easily go from manageable to overwhelming. Don’t wait for it.

5. Vacuum Them Up!

A quick and easy way to dispose of Asian beetles is to vacuum them up. This method will not kill the pests, but it will make it easier to transfer them out of your home. Before sucking them up, be sure they are going into a sealed container whether it’s a vacuum bag or a closed container. After you have sucked them all up, you can seal the bag, take them outside, or dispose of them.

6. Diatomaceous Earth

If you want to kill the Asian beetles, and a few other pests like stink bugs, you can use diatomaceous earth. Diatomaceous earth is a powdery substance that is made of fossilized remains of algae and abrasive properties. Basically, this substance dehydrates insects to death. This substance is non-toxic to human and pets, but it is very effective at killing many different pests.

7. Remove The Scent

If you don’t want to kill your little invaders, you can try to ward them away by removing their scent from your home. Asian lady beetles have a distinct odor. Try to hide it with citronella or citrus oil. These scents act as a repellent for lady beetles, and if they can’t smell their home, they will look elsewhere.

8. Try Cloves Or Bay Leaves

If you want to get to work at repelling these annoying little pests but don’t have any of the items listed above, look no further than your spice cabinet. Cloves or bay leaves are two spices that Asian beetles can’t stand. Place these spices near windows and other infested areas to shoo away your ladybug infestation.

9. Spray Them

Asian lady beetles are found in large numbers. A good way to get a bunch of them all at once is to spray them with a spray bottle. Fill your bottle with citronella or soapy water. This will not only deter, and possible kill quite a few of these insects, but the scent will keep them from coming back. It’s a simple and quick way to get rid of these unwanted pests.

Keeping Pests Out

In the long run, Asian lady beetles are more annoying than harmful. That doesn’t mean they belong in your home. They stink, they can bite, and they multiply like crazy. If you want to get rid of your infestation, and you’ve exhausted all these methods, consider reaching out to a pest control expert. Enjoy your bug-free summer and stop lady beetles from encroaching on your property today.

Widely known as the “ladybug,” Asian lady beetles look similar to other ladybird beetles that occur on backyard flowers and shrubs, coming in a variety of colors. This species of Asian Beetles has the habit of gathering around houses in large numbers in fall. They form in large aggregations on the sunny side of the house in late afternoon.

During summer, Asian lady beetles live on plants and feed on aphids and other garden pests, mostly affecting flowers and shrubs. In fall, the individuals from the plants around the house and from nearby areas come together to spend the winter in a protected location. The result of this behavior can be small or large gatherings of these beetles in one place, often inside houses and other covered areas.

The first signs of a potential problem are Asian lady beetles resting on the south and west facing side of the house in fall. These few individuals may be just the start and have the potential to be joined by many others in the following days or weeks. Fortunately, you don’t have to worry about these beetles causing damage or laying eggs in your home.

How to Eliminate Asian Lady Beetles

Eliminating the beetles once they are indoors can be done with a combination of aerosol sprays and sticky traps. Our Harris Lady Beetle Killer is the perfect solution. The Asian lady beetle will often come to windows during the day, and can be treated with an aerosol and captured in traps at this location. It is just that easy to get rid of Asian Lady Beetles

How to Prevent Asian Lady Beetles

Preventing large aggregations begins with spraying insecticides, such as Harris Lady Beetle Killer, on the house siding where the beetles start to gather. This may encourage them to leave. Re-application of the liquid insecticide may be necessary because the residual activity will be reduced with exposure to the sun. Treating around the doors and windows may help to keep them from coming indoors along these routes. Applying insecticide directly to the beetles will be the most effective method of control. 4.3/5 (7 Reviews)

BlogWhat’s the Difference Between Ladybugs and Asian Lady Beetles?

You know what ladybugs look like, and you’re probably already somewhat familiar with the infamous Asian lady beetle. The pest seems to disguise itself as a harmless ladybug in order to infiltrate our gardens and homes. Asian lady beetles are like the dastardly spies of the insect world, especially in fall and spring. What you may not know, however, is that the disguise isn’t perfect. It’s not always easy, but distinguishing between Asian lady beetles and ladybugs is always possible. By figuring out which bug is which, you’ll be able to drive out the bad and leave the good be. Here’s how to tell if the bug you’re looking at is an imposter, and what to do about it. ‌

Why the difference matters

Although Ladybugs and Asian lady beetles look similar and belong to the same insect family, they don’t behave similarly. Ladybugs are considered highly beneficial, harmless insects. They don’t bite, they consume several harmful garden pests such as aphids, and they never congregate in large numbers. Most importantly, when it gets cold out they seek shelter outdoors. Asian lady beetles hunt garden pests, too, but that’s where the similarities end. Asian lady beetles are considered a true pest. Unlike ladybugs, Asian lady beetles will gather in large groups, especially around warm, reflective surfaces like windows. Asian lady beetles “bite” by scraping the skin they land on, and leave a yellow, foul-smelling liquid on surfaces where they gather. Worst of all, Asian lady beetles will attempt to enter your home when they look for overwintering shelters. Basically, think of Asian lady beetles as ladybugs’ evil twins. Telling them apart is important because even if you’re cool with ladybugs, you don’t want Asian lady beetles hanging around. ‌

How you can tell them apart


Ladybugs and Asian lady beetles definitely look similar. If you look closely, however, you’ll be able to spot a few key differences. First of all, Asian lady beetles are slightly larger than Ladybugs. While all ladybugs are bright red with black spots, Asian lady beetles’ coloration can vary from red to orange. Lady beetles may or may not have black spots on their cerci (wing covers). Lady bugs have a round, oval shape, while Asian lady beetles tend to be a little longer. The easiest way to tell Asian lady beetles apart from ladybugs at a glance is to look for the white “M” (see above). Asian lady beetles have a distinctive, highly-visible “M-shaped” black marking on their otherwise-white heads. This marking varies in size, thickness, and overall shape, but it’s always there. Ladybugs’ heads are mostly black with small white markings. Ladybug’s white markings are confined to the sides of the head and may resemble “cheeks.” In general, ladybugs’ heads or “snouts” also appear shorter and less pointed than Asian lady beetles’. ‌


First and foremost, ladybugs don’t sneak into your home the way Asian lady beetles do. While ladybugs overwinter in sheltered sites outdoors, Asian lady beetles often wind up entering homes. If you notice the bugs congregating in or around your home in fall or winter, they’re probably Asian lady beetles. Look for them around siding, roof shingles, attics, door and window frames, and other dark, undisturbed areas. Asian lady beetles may also enter homes and buildings in spring. The other obvious way to identify an Asian lady beetle is to look for their “reflex bleeding.” When Asian lady beetles feel threatened, they may excrete a foul-smelling, yellow liquid from their leg joints. This excretion is called “reflex bleeding,” and it can also happen when the beetles are crushed. The yellow excretion isn’t dangerous, but it can stain walls and fabrics or trigger minor allergic reactions. These excretions are particularly noticeable when Asian lady beetles congregate around warm surfaces or access points. ‌

What You Can Do About Asian Lady Beetles

Asian lady beetles are naturally attracted to bright colors like whites, greys, and yellows. They also tend to congregate in places that get lots of sun exposure. Therefore, you should look for your Asian lady beetles on sun-exposed, brightly-colored surfaces. When Asian lady beetles enter homes, it’s usually by accident. They congregate on window frames or wall spaces and end up wandering in through cracks. If you can find and seal these cracks, you can keep the beetles out. Once inside, Asian lady beetles tend to congregate in dark, secluded places to keep warm. You might find them in attics, closets, crawl spaces, or storage areas. They’re particularly prone to hiding behind frames and siding. Don’t crush any beetles you find. Instead, vacuum them up and dispose of the bag when you’re finished. You should also scrub down the surfaces Asian lady beetles congregate on with soapy water. ‌ Asian lady beetles aren’t a dangerous pest, but they are a nuisance. You shouldn’t have to put up with these opportunistic stinkers just because you’re afraid to bother ladybugs. By learning how to tell Asian lady beetles and ladybugs apart, you won’t have to. Need some help clearing out an Asian lady beetle infestation? Want to make sure you don’t get one in the first place? Just give Plunkett’s Pest Control a call right away. We’ll send those imposters packing, every time.

Home Invasion

(They’re not so cute when there are hundreds in your window!)

It’s a cool but sunny September afternoon. You are sitting by the sunny window, enjoying a cup of pumpkin spice coffee. As you glance out the window to admire the foliage, you notice reddish orange movement at the window. Whoa, wait… There is a lot more orange around that window casing then there should be! Lady Beetles… also known as Ladybugs and swarms are invading your home.

Asian Lady Beetles were introduced into the U.S. starting in the 1960’s to control agricultural pests because they are a natural predator of aphids and many other agricultural pests. So truthfully, they really are a good bug to have around. However, when Ladybugs decide to invade your home by the hundreds to ride out the cold winter, they can become a huge nuisance. Not to mention the stink! Lady Beetles can secrete a foul-smelling yellowish fluid from their leg joints when disturbed – ick!

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As you might have guessed or even experienced, Asian Lady Beetles seek protected places to spend the winter, as autumn approaches. In nature, this would be inside trees and under rocks. However, they also tend to congregate on the sunny, southwest facing sides of buildings, moving into crevices and protected places. As a result, they can sneak in through tiny gaps in windows, door frames, siding, and soffits. Once inside, they may get into wall voids, light fixtures, attics, suspended ceilings and more.

The good news is Ladybugs do not pose a serious threat to your health or home. Aside from the aforementioned stink, it is suggested that infestations may cause allergies in some, such as asthma or eye irritation. The real issue for many becomes the sheer numbers of ladybugs entering your home. For most, it is beyond just a nuisance. It’s simply overwhelming and… erm, disgusting.

What to do?

Prevention – If you are already in the midst of an infestation the best course of action is to reach for the vacuum to tackle the swarms already inside. But preventing them from entering in the first place, is always the best course of action. Sealing cracks and crevices, repairing damaged screens, installing screens behind vents and the like will go a long way in keeping ladybugs out.

Treatment – Because it may be difficult to find and gain access to every tiny crack there is around your home, following up with an exterior treatment from a licensed pest control company, is a great way to create a protective barrier around your home. The treatments are targeted to prevent entry around common access points, such as the eaves, windows, soffits, attic vents, etc. However, the timing of this treatment is also critical. Too soon and the material will break down before it can stop ladybugs from entering. Too late and they will have already snuck in. Late summer to early fall, depending on seasonal conditions will often be the best time to treat.

RELATED: What Does A Pest Professional Do In My Home When I’m Gone?

The Modern Difference

It’s easy to overlook the little things, so tackling an insect invasion, like the Asian Lady Beetle, on your own is not always possible or realistic. That’s just one of the reasons why partnering with a pest control company like Modern Pest Services could prove beneficial. Our trained Service Professionals have the knowledge required to zero in on anything that could attract unwanted critters and they understand the preventative measures necessary in order to help keep your home pest-free.

Pest concerns change with the seasons, which is why our HomeCare Green program has been designed to target specific pests based on the time of year. HomeCare Green offers year-round protection against 60 different household pests – guaranteed!

So if you’re ready to bring in the trusted expert’s at Modern Pest, request a FREE quote or give us a call today! 1-800-323-PEST.