Ladybugs lay their eggs on aphid infested leaves. They lay clusters of eggs that include extra infertile eggs mixed in with the fertile. Both of these behaviors helps to ensure the ladybug larvae will have enough food to last until it becomes an adult.
Ladybugs have three main defenses against predators. Their brightly colored bodies warn potential predators that it is poisonous, even though these beetles are not. Ladybugs also secrete a bad tasting fluid when attacked which makes them an unwanted prey. Thirdly, these beetles can play dead! When faced with a sticky situation, ladybugs pretend they are dead until the danger passes.
Broccoli, milkweed and other plants that attract aphids are where ladybugs tend to live. These beetles move on once they eat all the aphids on one plant.
Ladybugs hibernate in the winter. The usually come together in large groups and sleep the winter away on mountains and areas of high elevation.