Asian Lady Beetles: Facts And Information On Ladybugs

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Lady beetles are a beneficial type of insect that can be found all over the world. This article will guide you through the Asian Lady Beetles: Facts and Information.

They play an important role in controlling pests and can be helpful in most cases. However, there are one species of ladybug, known as the Asian Lady Beetle, which can sometimes become a nuisance.

Asian lady beetles are often found near homes and buildings as they search for a place to overwinter. One species of ladybug, in particular, can be a nuisance when they fly into buildings and find overwintering sites indoors.

While their presence may not always be harmful, it is important to be aware of them and take steps to prevent Asian lady beetles from invading your home or property.

How to identify Asian lady beetles?

The multicolored Asian lady beetle is the most common type of Asian lady beetle. It is larger than other lady beetles and has black spots that vary in appearance. Some may have no spots, while others may have more than 20.

Asian Lady Beetles

Asian lady beetles are one of the most common ladybugs in North America. They are easily identifiable by the clear black ‘M’-shaped marking behind their head. Additionally, they are typically multicolored with orange, yellow, and red markings on their wings.

Is the Asian lady beetle a garden pest?

The Asian lady beetle is a common garden pest in North America. They are often found feeding on fruit that has already been damaged, such as holes made by other insects or birds. They can also infest flowers and leaves.

The Asian lady beetle is a garden pest found on apple trees. The best way to reduce the number of beetles on apple trees is by picking up fallen apples and removing damaged apples.

Asian Lady Beetle Life Cycle

The life cycle of the Asian lady beetle is about 3-4 weeks. After mating, the female will lay eggs in small clusters of about 20 eggs. The eggs are small, yellowish, and oval in appearance.

Life cycle of lady beetle

Once hatched, the larvae will feed on aphids and other insects until they reach maturity, where they will pupate and eventually become adults.

The Asian lady beetle life cycle comprises four stages: egg, larva, pupa, and adult. Eggs are present on the underside of leaves in late summer and fall. The larvae are approximately 4mm long and 2mm wide and are dark charcoal to black. 

The larvae stage usually lasts up to 2 weeks, during which they feed primarily on aphids and scale insects. They are orange to yellowish with lines of dark spots that originate from the head area and end in tufts of hair called tubercles or spines on the rear end.

After completing the larval stage, the pupa forms and remains inactive until the metamorphosis into an adult beetle is completed. The entire stage from egg to adult can take up to six weeks.

When are lady beetles seen indoors?

Adult beetles, also known as ladybugs, are seen indoors in the fall when they migrate from outdoors. Attracted to light, they will often enter homes through open windows or doors.

Indoors, people often see lady beetles congregating on walls and ceilings in the fall. While it is possible to kill them by vacuuming, this is not always effective. The beetles can also be removed by hand and disposed of outside.

Asian lady beetles are usually seen indoors during the winter season. They will try to find a warm place to hibernate and will often invade homes. If you see lady beetles in your home, try to capture them using a stocking and minimize their smell by placing them in a sealed container.

Where did they come from?

The Asian Lady Beetle is a beetle that is native to Asia. You can find it in a variety of habitats, including trees and fields. The beetle preys on aphids and scale insects, which makes it beneficial to the environment.

Asian lady beetles were accidentally introduced to the United States and first appeared in Kentucky. The earliest records date back to 1992, when a few specimens were collected from Hickman County.

Do ladybugs infest buildings?

Ladybugs, or lady beetles, are a common sight in the fall as they migrate to buildings and other artificial structures to spend the winter. While they may seem like a nuisance, they do not infest buildings and are not harmful.

Ladybugs are most active during the day, specifically in the afternoon. They tend to rest at night, so you’re less likely to see them then.

Swarms of ladybugs are more common following a period of cooler weather. They tend to be most prevalent on sunny days and can be a nuisance for people when they infest buildings.

Asian Lady Beetles

Asian lady beetles are a species of beetle that is found in North America and Asia. They are commonly known as “overwintering” insects because they hibernate as adults and spend the winter in protected places such as under tree bark or beneath the siding of buildings.

The Asian lady beetle is a recent invader to the United States and is similar in appearance to the native ladybug. You can distinguish it by its black head and thorax and white markings on the wing covers.

This beetle feeds on aphids and other pests in gardens but can become a nuisance when large numbers congregate inside buildings in the fall.

Asian lady beetles are not harmful to humans, pets, or the structure of your home. They do not breed or lay eggs inside buildings. They typically live outdoors and feed on aphids and other pests.

Asian lady Beetle benefits

The Asian lady beetle is a beneficial insect that preys on aphids and scale. Aphids are pests that can cause damage to crops, while scale can cover the leaves of plants and inhibit photosynthesis.

Predatory beetle in family Coccinellidae feeding on blackfly

Adults of the Asian lady beetle can consume up to 270 aphids per day, while larvae can consume up to 1,200 aphids during its life stage. 

The natural predator of aphids is the beetle. Both adults and larvae have been observed feeding on the newly introduced soybean aphid in soybean fields. This can help to control the population of soybean aphids and ultimately improve the health of the soybean plants.

Asian lady beetle Damage

Asian lady beetles can cause a lot of damage to property, houses, and crops. They are known to bite people and pets and release foul-smelling odors when they are disturbed or feel threatened.

Asian lady beetles are becoming a more common sight in the United States as they migrate from their natural habitat. While they are beneficial to have around because they eat pests, they can also cause some damage. They can bite and draw blood, which can cause inhalant allergies in some people.

The Asian lady beetle can cause some allergies for people, but they will clear up as soon as the beetles are removed. In the meantime, people can take certain precautions like keeping their windows closed and using a vacuum cleaner to remove them.

How Do I Get Rid of Asian Lady Beetles?

Asian lady beetles are beneficial insects that eat aphids, mites, and other garden pests.

They are often mistaken for pests themselves because of their habit of gathering in large numbers around homes and buildings in the fall. While they can be a nuisance, they are not harmful, and there is no need to get rid of them.

First and foremost, it is important to be aware that lady beetles can hitch a ride into your home on your clothing or furniture if you happen to bring them in from the outside. So, always be mindful when you’re working outdoors and check your clothing and belongings before entering your home.

These include vacuuming them up, sweeping them up in a dustpan and putting them back outside, or using a registered pesticide product.

Asian Lady beetle with its distinct marks on the body

Final Thoughts

Asian lady beetles are common insects that You can find in many parts of the world. They are known for their characteristic red shell and black spots.

While they generally do not cause any harm, they can become a nuisance when they enter into homes in large numbers. There are various methods that You can use to get rid of them, but the most effective is usually to use a light trap.

In conclusion, there is no one “quick fix” to the annual lady beetle invasion. While vacuuming, pest-proofing your home, and properly timed exterior insecticide treatments can help, it’s important to remember that not This will keep out every beetle.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.