Mealy bugs are tiny white cottony insects that belong to the Pseudococcidae family. They might look like little cotton balls or mildew, but don't be fooled. These tiny pests will suck the juices from your plants, weakening them and exposing them to potential illnesses. Mealy bugs excrete large amounts of honeydew, which in turn attract other pests, such as ants, that feed on the honeydew. If you notice ants or other pests on your plant, take a close look to see if mealy bugs are present.