Omaha Asian beetles, also known as lady beetles, or “ladybugs”, are a common pest found in most areas of America and in some regions of Canada. They don’t carry disease or breed indoors, but they can be problematic when you see swarms of them crawling over windows, walls and light fixtures.

Although they don’t sting, they can bite and emit an odorous smell that comes from a yellowish, defensive body chemical that can cause spotting on floors and walls. Some people are even allergic to this chemical and develop skin and sinus irritations. If you think you may have an infestation of Asian beetles, here are some guidelines for recognizing them, along with a few control options. 

Physical Features 

It’s important to know their physical features so that you can identify these pests as Asian beetles.

  • The most distinguishable feature is their wide range of colors. In fact, their colors range from red and orange to yellow, including several black spots. The varied look of different Asian beetles can be misleading, which makes people think that there are several species, but this is not true.
  • Ladybugs are identified by their distinctive black “M” or “W” mark found on their head.
  • Adult ladybugs have a convex or oval shape and measure about 1/4″ (7 mm) long.

Control Methods 

The trick for controlling ladybugs indoors is to keep them out of the house during the time when they want to set up housekeeping in homes. This is usually when they’re looking to escape inclement weather.

  • To prevent them from invading your home, seal all cracks, gaps and other possible entryways. For example, check windows, siding, doors, gable vents, ridges and other areas for openings, making needed repairs.
  • For small cracks, use a silicone-latex caulk or a quality silicone.
  • If you do find these pests on your floors, sweep them off the surfaces, using a broom and dustpan. Then, get rid of them outside.
  • Another method is to place glue traps, such as those used for catching mice, in places, such as windowsills and other areas where you’ve seen ladybugs. Once a sheet has filled up with dead bugs, discard it.
  • You could vacuum the pests out by using a special vacuum that’s made for capturing insects. On the other hand, this isn’t the best method because it can agitate the ladybugs and result in the pests expelling their offensive chemical odor.
  • If you use a vacuum, be sure to empty the bag so that the bugs don’t get back into your house.
  • To kill beetles in a vacuum bag, freeze the bag for three hours or longer. You could also dunk the bag into an insecticidal solution or soapy water.

Considerations and Warnings 

  • Ladybugs commonly appear in masses, near or on buildings, particularly in autumn. They also show up on mild winter days and in early spring.
  • It’s a good idea to have any gaps sealed in your home by the end of September to prevent ladybugs from hibernating in October.
  • Rather than gravitating to darker buildings, they tend to descend on light-colored structures and on the southern or southwestern walls of buildings that receive much sun illumination.
  • If you spray indoors without spraying outdoors, it’s useless. Using a mister or backpack sprayer can result in broader and quicker applications.

Often, getting rid of these pests can be overwhelming, especially when homeowners have to deal with masses of them. If your pest control methods have been ineffective, don’t hesitate to call the pest control specialists at Miller Pest and Termite. After properly identifying the insect, an exterminator can determine the best method for solving the issue. Please contact us and learn more about our wide range of pest control services.