Quadraspidiotus perniciosus

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Quadraspidiotus perniciosus

San Jose Scale
Binomial:Quadraspidiotus perniciosus
Order: Hemiptera
Damaging stages:Nymphs
Vulnerable stages:Crawler

San Jose scale is a pest of both orchards and ornamental plants. The insect is originally from China, but introduced in North America in the late 1900s as an invasive species.

Description[edit | edit source]

Circular hard scales, generally in great numbers. Adult males are winged, females remain under the scale.

Symptoms and Signs[edit | edit source]

Severe infestations can kill the host plant if not treated.

Host plants[edit | edit source]

Control[edit | edit source]

References[edit | edit source]