Ladybug Control
Once ladybugs have become established in the home, there aren't a lot of treatment options. There are not a lot of recommended chemical measures at this point. The easiest way to remove ladybugs, once they are indoors, is with a vacuum cleaner.
However, prevention, is the best of all choices . This is done during the Fall time. To help prevent asian lady beetles, cluster flies, box elder bugs and similar pests from entering in the fall, outdoor, fast-acting synthetic pyrethroids :
Recommended Residual Insecticides:

Bifen IT
* Bifen IT does not break down easily with rain once it bonds to the surface.
Spray Bifen IT around eaves, attic vents, windows, doors, under-fascia lips, soffits, siding(including under lips) and any other possible points of entry, concentrating on the south and the southwest sides .
Spray with fan pattern from a garden pump sprayer such as B&G Dura Sprayer
Spray the southern and western walls is helpful when lady bug populations are high. Remember that heavy duty infestations require heavy duty treatments.
In addition to the residual insecticide Bifen IT , you may want to use dusts and aerosols, if they have invaded the home.
Recommended dusts:
Delta Dust (Weather resistant)
Dust can be used to treat wall voids if there is no insulation to impede the spreading of the dust.
It can also be placed around switch plate covers and electrical outlets as well as plumbing openings.
Recommended Aerosol:

V One Aerosol
The dust and aerosols should be applied to indoor cracks, crevices, wall voids, hiding places and entry points.
V One aerosol contains pyrethrums, which is a contact killer.
It would be useful to spray the ladybugs directly on contact to get a quick knockdown.
V One Aerosol has a crack and crevice applicator which allows you to treat around windows, molding and light fixtures.
Shady areas are less likely to attract lady bugs.
Mechanical means of exclusion:
- Sealing ladybugs out by caulking cracks and around utility service openings, fixing broken window screens and door jams, plugging cracks in the foundation or roof as well as similar exclusion-type activities will help prevent the asian beetles from entering in the first place.
Cannot be shipped to CT or NY