What do ladybugs eat? Ladybugs like to feast on teeny sap-sucking insects known as aphids. “Over its lifetime, a ladybug may consume as many as 5,000 aphids,” Troyano says.

What do ladybugs eat? Ladybugs eat aphids and other small insects. In fact, a ladybug can eat up to 5,000 insects during its lifetime, according to National Geographic.