Ladybug Control and Prevention
The first step is to find areas where ladybugs congregate and clean the site with soapy water or bleach to wash away the pheromone scent. Vacuum up swarms of ladybugs to remove them and throw the bag away when you’re finished.
Ladybugs enter buildings through small cracks and crevices. Inspect your building for vulnerabilities around the baseboard, frames, utility lines, foundation, and vents. Seal up any cracks and crevices you find with caulk. Exclusion is a very powerful tool you can use to prevent pest infestations of any kind.
Signs of a Ladybug Infestation
In the winter, ladybugs may enter a building in large numbers to keep warm. Check damp, dark areas of your building. Overwintering ladybugs may be attracted to basements, crawl spaces, attics, or closets.
When ladybugs congregate, they give off pheromones that attract more ladybugs. Ladybugs tend to congregate on light-colored surfaces that reflect sunlight. They’re particularly common in spring and fall.