Harmonia axyridis , most commonly known as the harlequin , multicolored Asian , or simply Asian ladybeetle , is a large coccinellid beetle. This is one of the most variable species in the world, with an exceptionally wide range of color forms. It is now common, well known, and spreading in those regions, and has also established in Africa and widely across South America. This species is conspicuous in North America where it may locally be known as the Halloween ladybeetle. It earns this name as it often invades homes during October, in order to prepare for overwintering.
Ladybug Control and How to Get Rid of Lady Bugs
Asian Beetles - How To Kill and Get Rid Of Asian Beetles Bugs
Outdoors, Asian lady beetles helpfully feed on plant pests like aphids and many others. From September to November, they move indoors to overwinter, crawling along windows and walls. Small cracks around windows and door frames provide entry points. While indoors, the pests search for moisture or humidity and bask in warm portions of the building when possible. Houses near woods or fields are prone to infestation, although any building can attract the pests. Contrasting shades of light and dark, like blacks against a white background also attract Asian lady beetles. These beetles are nuisances simply because of their large numbers.
Asian Lady Beetle Infestation of Structures
Once ladybugs have become established in the home, the treatment options are limited. The easiest way to remove ladybugs, once they are indoors, is with a vacuum cleaner. D-fense SC with deltamethrin is a long residual insecticide and does not break down easily outside on wall surfaces. It is odorless and does not leave a stain.
Commonly mistaken for the ladybug, the Asian lady beetle is a native of eastern Asia that first began sightings during the s. They can be quite aggressive. They feed on aphids found in trees, crops and gardens, and therefore are considered a beneficial predator in the garden and agricultural settings.