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Insects Feeding
on these Plants:

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Prunus domestica
(European Plum) [Rosaceae]
(Observations are from Felt, Blackman & Eastop, Pepper, Spencer & Steyskal, ScaleNet)

Diptera (Flies)
Agromyzidae: Phytobia pruni [larvae bore through stems; found in New York] SS1986

Homoptera (Sucking Insects)
Aphididae: Aphis longicauda [feeds on young shoots & leaves, found in Virginia] BE2013, Aphis spiraecola (Spiraea Aphid) Pp1965, Brachycaudus cardui (Thistle Aphid) Pp1965, Brachycaudus helichrysi (Leafcurl Plum Aphid) [curls leaves of plum leaves, migrating during the summer to the stems & inflorescences of various herbaceous plants] BE2013, Hyalopterus pruni (Mealy Plum Aphid) [found on leaf undersides of Prunus spp., mostly plum trees, migrating during the summer to Phragmites australis &, to a lesser extent, Arundo donax; European Plum is a preferred primary host] BE2013 Pp1965, Hysteroneura setariae (Rusty Plum Aphid) [found on plum & possibly cherry trees as primary hosts, migrating during the summer to the leaves & inflorescences of various grasses; this aphid is native to North America, including Illinois] BE2013, Phorodon humuli (Damson-Hop Aphid) [causes slight leaf curl on plum & cherry trees, migrating to the leaf undersides, flowers, & fruits of hops; this aphid has been found in Quebec, but it occurs mostly in Eurasia & western North America] BE2013 Pp1965, Rhopalosiphum nymphaeae (Waterlily Aphid) [found on young shoots, petioles, & fruit stalks of cherry & plum trees, migrating during the summer to a wide variety of emergent aquatic & floating aquatic plants; widely distributed in North America & Europe] BE2013;
Diaspididae: Chionaspis furfura (Scurfy Bark Scale) [found on branches & trunks, less often on young shoots, fruit, & leaves; plant species in the Rosaceae are preferred hosts; this insect is widely distributed in the USA & S Canada] SN2014, Diaspidiotus forbesi (Forbe's Scale) [found on bark, polyphagous; this insect occurs in north-central USA & elsewhere] SN2014, Diaspidiotus ostreaeformis (False San Jose Scale) [found on bark, polyphagous; this insect is widely distributed in N USA & S Canada, also in Eurasia, where it is native] SN2014, 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, Epidiaspis leperii (Italian Pear Scale) [found on young branches & twigs; this insect occurs in NE USA & Missouri] 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 

Trombidiformes (Mites)

Eriophyidae: Acalitus phloeocoptes (Plum Leaf Mite, Almond Bud Mite) [mites form blister galls on leaves, or bud galls on shoots] Flt1917
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