Horticulture/Icerya purchasi

Icerya purchasi, the cottony cushion scale) is a scale insect that feeds on several ornamental species, but is most notoriously known as a pest of Citrus crops.

Description
White scales, found on woody growth.

Symptoms and Signs
The presence of large numbers can weaken and even kill the host plant.

Ecology
Originally from Australia, now present in many other regions.

Host plants

 * ../Acer/
 * ../Buxus/
 * ../Cedrus/ (Cedar)
 * ../Citrus/
 * ../Hedera/
 * ../Helianthus/
 * ../Fagus/
 * ../Juglans/
 * ../Liquidumbar/
 * ../Magnolia/
 * ../Morus/ (Mulberry)
 * ../Pinus/
 * ../Pittosporum/
 * ../Prunus/
 * ../Pseudosasa/
 * ../Robinia/
 * ../Salix/
 * ../Verbena/
 * ../Viburnum/
 * ../Weigela/