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Insects Feeding
on this Plant
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Carya illinoinensis
(Pecan) [Juglandaceae]
(Observations are from Funkhouser, Wagner, Hottes & Frison, Knight, Rider, Clark et al., Dmitriev & Dietrich, Covell, MacRae, Needham et al., Blackman & Eastop, Wheeler et al., Hamilton, Miller, Cranshaw, ScaleNet)

Coleoptera (Beetles)
Buprestidae: Agrilus otiosus (Hickory Agrilus) [larvae bore through dead branches] Mcr1991, Anthaxia viridifrons Mcr1991, Chrysobothris chlorocephala [larvae bore through dead trees] Mcr1991; Chrysomelidae: Metachroma marginale Clk2004; Curculionidae: Conotrachelus aratus (Hickory Shoot Curculio) [feeds on new shoots] Crw2004, Conotrachelus hicoriae (Hickory Nut Curculio) [feeds on nuts] Crw2004; Scolytidae: Scolytus quadrispinosus (Hickory Bark Beetle) Crw2004

Heteroptera (True Bugs)
Miridae: Lygocoris caryae (Hickory Plant Bug) Kn1941, Orthotylus ramus Kn1941 WHM1983, Plagiognathus albatus Kn1941; Pentatomidae: Euschistus servus [polyphagous] Rid2009

Homoptera (Sucking Insects)
Aphididae: Longistigma caryae (Giant Bark Aphid) [found on bark, polyphagous] HF1931 BE2013, Melanocallis caryaefoliae (Black Pecan Aphid) [found on leaves, Pecan is the preferred host plant; observed in southern Illinois] BE2013 Crw2004, Monellia caryella (Black-margined Pecan Aphid) [found on leaves] HF1931 BE2013, Monelliopsis nigropunctata (Yellow Hickory Aphid) HF1931, Monelliopsis pecanis (Yellow Pecan Aphid) [found on leaves] Crw2004; Cercopidae: 
Clastoptera achatina (Pecan Spittlebug) [causes twig dieback] Hm1982 Crw2004; Cicadellidae: Eratoneura osborni DD2010, Erythridula cauta [preferred host plant] DD2010; Diaspididae: Chionaspis caryae (Hickory Scurfy Scale) [causes deformation of branches & twigs on young trees; this insect is found in NE & north-central USA] SN2014, Diaspidiotus ancylis (Putnam Scale) [found on leaves, sometimes bark, polyphagous; this insect is widely distributed in the USA] SN2014, Diaspidiotus forbesi (Forbe's Scale) [found on bark, polyphagous; this insect occurs in north-central USA & elsewhere] SN2014, Diaspidiotus osborni (Osborn Scale) [found on bark, polyphagous; this insect is found in E USA & Ontario] SN2014, Hemiberlesia neodiffinis (False Diffinis Scale) [polyphagous, this insect occurs in E USA] SN2014, Melanaspis obscura (Obscure Scale) [found on bark; this insect occurs in E USA & California] SN2014, Melanaspis tenebricosa (Gloomy Scale) [found on bark, polyphagous; this insect occurs in E USA & California] SN2014; Membracidae: Carynota mera Fnk1917; Phylloxeridae: Phylloxera notabilis (Pecan Leaf Phylloxera) [forms ovoid to globoid galls on leaflets, distributed in E USA] BE2013; Pseudococcidae: Dysmicoccus morrisoni (Morrison Mealybug) [found in eastern USA] SN2014, Eurycoccus blanchardii (Blanchard Mealybug) [this insect is widely distributed in eastern USA] SN2014


Lepidoptera (Butterflies, Skippers, & Moths)
Arctiidae: Lophocampa caryae (Hickory Tussock Moth) Wg2005; Geometridae: Anacamptodes humaria (Small Purplish Gray) [polyphagous] Cv2005; Gracillariidae: Phyllonorycter olivaeformis [larvae are leaf-miners] Ndm1928; Noctuidae: Catocala agrippina (Agrippina Underwing) [preferred host plant] Cv2005, Catocala angusi (Angus' Underwing) Cv2005, Catocala maestosa (Sad Underwing) Cv2005, Catocala piatrix (The Penitent) Cv2005, Catocala sappho (Sappho Underwing) [preferred host plant] Cv2005, Catocala vidua (Widow Underwing) Cv2005; Notodontidae: Datana integerrima (Walnut Caterpillar) Cv2005 Wg2005
; Saturniidae: Actias luna (Luna Moth) [polyphagous] Cv2005; Sesiidae: Synanthedon scitula (Dogwood Borer Moth) [polyphagous] Cv2005; Tortricidae: Cydia caryana (Hickory Shuckworm) [larvae feed on husks of fruits] Mlr1987, Gretchena bolliana (Pecan Bud Moth) [larvae feed on buds, foliage, & fruits] Mlr1987
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