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Calico Scale

Raymond Gill, California Department of Food and Agriculture, Bugwood.org
Eulecanium cerasorum (Cockerell) is a pest of a variety of woody landscape plants. It does not usually kill its host plant, however, it can severely weaken the plant, making it more susceptible to woodborers, drought and other stresses. Calico scale’s host range includes dogwood (Cornus), honeylocust (Gleditsia), magnolia (Magnolia), maple (Acer), sweetgum (Liquidambar styraciflua), tuliptree (Liriodendron tulipifera) and ornamental fruit trees.
This colorful white and dark brown calico scale is about 1/4 inch in diameter. It is brightest at maturity and darkens with age. The first-instar nymphs are pinkish in color becoming yellowish as they enlarge. Throughout the winter the immature females are oval, flattened, and light to dark brown with a hard waxy coating.
 
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