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How to Manage Pests

Pests in Gardens and Landscapes

Seasonal development and life cycle—Mealybugs

Most female mealybugs lay tiny yellow eggs intermixed with white wax in a mass called an ovisac. Mealybug nymphs are oblong, whitish, yellowish, or reddish and may or may not be covered with waxy filaments. Most species feed on branches, twigs, or leaves. Depending on the species, host, and climate, they may overwinter only as eggs or as females, or as all stages. Most mealybugs have several generations a year.

Mealybug nymphs
Mealybug nymphs
Cottony mass of eggs
Cottony mass of eggs
Mealybug adult
Mealybug adult

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2009 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/GARDEN/PLANTS/INVERT/LIFECYCLES/lcmealybugs.html revised: March 5, 2009. Contact webmaster.