scurfy scale

scurfy scale

insect
      a species of insect in the armoured scale family, Diaspididae (order Homoptera), that is found on shaded trees, giving the bark a scurfy appearance. This insect has gray, pear-shaped females (about 3 mm [0.1 inch] long) and smaller, white males with three longitudinal ridges. An important insect pest of fruit and ornamental trees in the United States, the scurfy scale causes spotting of foliage and fruit. In warm climates, there are two generations a year, whereas in cooler regions there is only one. Control is usually through use of an oil spray.

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Universalium. 2010.

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  • scurfy scale — noun : a scale (Chionaspis furfura) injurious to trees (as apple or pear) …   Useful english dictionary

  • elm scurfy scale — noun see elm scale …   Useful english dictionary

  • scale insect — any of numerous small, plant sucking homopterous insects of the superfamily Coccoidea, the males of which are winged and the females wingless, often covered by a waxy secretion resembling scales. [1830 40] * * * Any member of several families of… …   Universalium

  • scurfy bark louse — noun : scurfy scale …   Useful english dictionary

  • scurfy — adjective 1. having or producing or covered with scurf • Pertains to noun: ↑scurf • Derivationally related forms: ↑scurf 2. rough to the touch; covered with scales or scurf • Syn: ↑lepidote, ↑leprose, ↑ …   Useful english dictionary

  • elm scale — noun or elm scurfy scale : any of several scales that feed on elm trees; especially : a widely distributed scale (Chionaspis americana) of eastern No. America that feeds on elm and hackberry and has the female covered by a dull white scale often… …   Useful english dictionary

  • bract-scale — ˈ ̷ ̷ˌ ̷ ̷ noun : an annual erect succulent herb (Atriplex serenana) of saline soils in the southeastern United States with numerous grayish green sparsely scurfy leaves …   Useful english dictionary

  • shad scale — noun : a scurfy grayish shrub (Atriplex canescens) of the western United States having a dense cluster of minute greenish flowers …   Useful english dictionary

  • chionaspis — ˈnaspə̇s noun Usage: capitalized Etymology: New Latin, from chion + aspis : a genus of scales with elongate often white scales see scurfy scale …   Useful english dictionary

  • Leaf — For other uses, see Leaf (disambiguation). The leaves of a Beech tree …   Wikipedia

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