Mealybugs are pesky insects that feed on the sap of plants and cause damage to the leaves, flowers, and fruit. There are various synonyms for the word "mealybug" that include cottony cushion scale, citrus mealybug, vine mealybug, and long-tailed mealybug. These insects can be identified by their white, powdery appearance and the sticky residue they leave on plants. Mealybug infestations can be controlled with insecticidal sprays or by releasing natural predators such as ladybugs or lacewings. It is important to keep a watchful eye on plants and take prompt action against mealybugs to prevent the spread of these damaging pests.