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.
Multicolored Asian Lady Beetle (Ladybug)
Asian Lady Beetles: How to Get Rid of Ladybugs, Diet, etc.
Asian Lady Beetles
Large numbers of lady beetles ladybugs infesting homes and buildings in the United States were first reported in the early s. Ladybugs normally are considered beneficial since they live outdoors and feed on plant pests. Once inside they crawl about on windows, walls, attics, etc. In many areas of the U. The beetle is native to Asia e.
Multicolored Asian lady beetle, Harmonia axyridis Pallas is also known as Asian lady beetle, Halloween lady beetle, and Japanese lady beetle. Larvae are blue to black with two orange stripes, and rows of small, spines on their bodies. Multicolored Asian lady beetles can be a nuisance when they occur in large numbers inside homes. Asian lady beetles are common in wooded areas, agriculture fields and home gardens. When they run out of their preferred food source aphids , these lady beetles fly to another food source, often fall-ripening fruit such as grapes, apples and fall raspberries.