Insects Feeding
on these Plants:
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Ulmus glabra (Scots Elm) [Ulmaceae]
(Observations are from Blackman & Eastop, ScaleNet)
Homoptera (Sucking Insects)
Aphididae: Tetraneura ulmi (Elm & Grass Root Aphid) [forms stalked sack-shaped galls on the upper surfaces of elm leaves, migrating during the summer to the roots of various grasses; this Eurasian aphid has been found in NE USA, north-central USA, & Canada] BE2013; Diaspididae: Diaspidiotus perniciosus (San Jose Scale) [usually found on bark, polyphagous, although preferring woody species in the Rosaceae; this insect is widely distributed; syn. Comstockaspis perniciosa, syn. Quadraspidiotus perniciosus] SN2014, Lepidosaphes conchiformis (Fig Scale) [found on bark & leaves, also fig fruits in California; this insect occurs in some areas of both E USA & W USA, including Missouri & California; it was introduced from Eurasia] SN2014, Lepidosaphes ulmi (Oystershell Scale) [found on bark, polyphagous; this insect is widely distributed in the USA, S Canada, & Eurasia] SN2014, Pseudaulacaspis pentagona (White Peach Scale) [polyphagous; this insect is found mostly in E USA, it was introduced from Eurasia] SN2014