During the year ladybugs are beneficial in the garden, but in the fall they become pests as they swarm by the millions looking for a place to stay warm and dry for winter.
https://steemit.com/homesteading/@hansjurgen/it-s-an-invasion
All winter long, if you turn over a piece of lumber or move an object, you will find a cluster of ladybugs.
Have a great day and thanks for your up-vote, Tim and Joann