Eventually, all the ladybugs sleeping in your walls will wake up and crawl out, and your problem will be done for the year. Next year we may not have these high populations because conditions may not be as good. In the meantime, there are a few things you can do to lessen the number of freeloading ladybugs you have next year. Inspect your house, especially on the south and west sides, for places the bugs can enter, and caulk, caulk, caulk. Certainly this is more of a problem with older homes, but even brand new homes can have ladybug problems.
Caulk can start pulling away less than a year after it is applied.
Additionally, the new aluminum siding and soffit systems are not manufactured to fit extremely tight, and it doesn t take much space for a ladybug to crawl through. Don t waste your time and money on insecticides. It is almost impossible to get the insecticide deep in the walls where the ladybugs are, but in the meantime you are exposing yourself and your family to unnecessary chemicals. Again, the ladybugs are harmless, but in the large numbers we have this year, they can be annoying. Just keep vacuuming them up.