Seal entry points around doors, windows, vents, and siding with caulk and weatherstripping
Repair screens and replace damaged window/door screens
Use door sweeps and tighten loose-fitting exterior trim
Install or maintain window screens and consider adding storm windows
Remove outdoor attractants: reduce outdoor lighting at night or use yellow “bug” bulbs
Keep landscaping trimmed: remove dense groundcover and weeds near the house
Reduce moisture and food sources: keep trash covered, fix leaks, and clean up fallen fruit
Vacuum ladybugs indoors regularly, then empty the vacuum outside
Sweep or use a handheld vacuum to collect indoor ladybugs and discard outdoors
Use a damp cloth or paper towels to pick up individual ladybugs indoors, then discard outdoors
Apply insecticide labeled for ladybugs/cluster insects only as directed, focusing on exterior entry areas and cracks
Use perimeter treatments around doors, windows, and siding where labeled for outdoor use
Consider a residual spray only if it’s labeled for the specific area and species, and follow label safety requirements
Set up sticky traps near entry points to reduce numbers inside
Use physical barriers: install fine mesh screens over vents and install door sweeps
Remove overwintering aggregation sites by cleaning and vacuuming them promptly
Remove ladybugs from exterior surfaces with a gentle hose spray when safe for plants and surfaces
If infestations persist, contact a licensed pest control professional