They also send off a foul odor from their legs. Ladybugs also have a tendency to play dead. Most predators refuse to eat an insect if it doesn't move. No matter if the ladybug is a larvae or an adult it mostly consumes aphids. They also eat small insects, mealybugs, spider mites, and eggs.
Some ladybugs also feed on plants.
A larvae can eat up to 400 aphids over this entire stage. An adult can eat up to 300 aphids. Ladybugs have very large appetites. Most ladybugs are helpful to gardeners. The ladybugs eat insects that are harmful to crops.