Obscure
mealybug
Pseudococcus affinis
Identification tip: Obscure
mealybug adults are light gray to white, covered with
a powdery wax, and have distinct filaments around the
body. They occur on many hosts.
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Longtailed mealybug
Pseudococcus longispinus
Identification tip: The longtailed mealybug is
commonly a pest only on nursery stock and indoor ornamentals.
It is distinguished by its two tail filaments, which
are longer than its body.
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Citrus mealybug
Planococcus citri
Identification tip: Citrus mealybug is a pest
of citrus and some indoor ornamentals. It has short,
waxy filaments of equal length all around its margin;
a dark stripe may be visible down its back.
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Cypress
bark mealybug
Ehrhornia cupressi
Identification tip: The cypress bark mealybug
occurs beneath bark plates on cedar, cypress, and juniper
in Pacific Coast states. Nymphs and adults are round,
bright red or orangish, and are surrounded by a ring
of white wax.
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Ground
mealybugs
Rhizoecus spp.
Identification tip:Ground mealybugs commonly
live in the soil and feed on the roots of many different
plants. They may be covered with white wax and their
short antennae and legs may be visible, but they do
not have obvious filaments along their sides and tail.
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Gill mealybugs
Ferrisia gilli
Identification tip:Gill's mealybug causes problems on pistachios, almonds, grapes, stone fruits, and many deciduous ornamentals. They have pink bodies and are covered in white wax. They are also sometimes covered in crystalline filaments, giving the appearance of having long glassy rods.
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