This blog is about boxelder bugs, but most places that experience high numbers of boxelder bugs also experience many asian beetles. Asian beetles are commonly mistaken for ladybugs because both insects have similar markings. Asian beetles can range in color but the most common type found in the United States is red with 16 black spots or more. These bugs are not native to the U.S. and were imported to help control specific insect pests.
These beetles can be beneficial in that they can get rid of plant pests like scale, aphids and other types of soft-bodied arthropods. Specifically, they are typically used in pecan orchards, where they greatly reduce the amount of pesticides that must be used to control unwanted insect populations. However, they become a pest when they begin to overwinter in people’s homes. In some cases their numbers can reach into the thousands and this can understandably cause homeowners to be concerned.
Asian beetles are certainly a nuisance, but like box elder bugs, they do not damage structures. If you find that your home has become infested with them, there is no reason to worry that they’ll damage your home, carpet, furniture or walls. For the most part, they’ll enter your home through cracks in the exterior walls and will stay within the walls of your home and never be seen.
There are a few things that will make your home more attractive to these bugs. First, they’re attracted to light colors. If your home is white, gray, yellow or another light color, you’ll have a higher chance of becoming infested with these bugs. Second, these bugs like forest areas and hilltops. If your home is infested with these bugs, they are more likely to make the move to your living space if it’s warmer or if you have many bright lights burning.
As with boxelder bugs, the best way to deal with Asian beetles is to avoid an infestation in the first place. Steps should be taken in the summer and fall to prevent them from choosing your home as an overwintering site as the temperatures begin to drop. Seal any cracks in the exterior of your home with caulk. This also helps prevent boxedler bug infestations and can reduce your utility bills as well.
To get rid of Asian beetles that are already in your home, use your vacuum to get rid of the bugs you see. Avoid squishing the bugs, as a yellow fluid will be released. This fluid can stain your floors and walls and it also has an unpleasant smell. The beetles use this as a natural defense against predators, as it makes it unlikely that predators will eat them.