1. Insect
  2. Horticultural, Landscape, and Ornamental Crops
  3. Nursery Pests
  4. Hosts and Pests of Nursery Crops

Crabapple (Malus)-San Jose scale

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Image related to Crabapple (Malus)-San Jose scale
San Jose scale
Quadraspidiotus perniciousus Comstock
Adult immature
© Ken Gray Insect Image Collection
Image related to Crabapple (Malus)-San Jose scale
San Jose scale
Quadraspidiotus perniciousus Comstock
Showing damage
© Ken Gray Insect Image Collection

A "crust" of San Jose scales from apple fruit

M. R. Bush, WA State University

Quadraspidiotus perniciosus

See:

Common Pests of Nursery Crops