Burning the remaining straw on a field is customary after the harvest. Ladybugs realize what is happening and migrate during this time and come back in the next season. This Mother Goose nursery rhyme may be inspired by their migration.
Lyrics for 'Ladybug, Ladybug'
Ladybug, ladybug fly away home,
Your house is on fire and your children are gone,
All except one,
And her name is Ann,
And she hid under the baking pan.