First Record of \u3ci\u3eAphis Helianthi\u3c/i\u3e (Homoptera: Aphididae) as a Pest of Celery [PDF]
, 2017 In 1989, the aphid Aphis helianthi severely damaged five of 10 scouted celery fields in west central Michigan. In 1990 and in 1991, A. helianthi again was a problem. reaching pestiferous levels in three of 10 and two of 10 scouted fields.
Davis, M. G. Kortier, Grafius, E.
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Plant Protection Science, 2005 In summer and autumn of 2004 the cicadellid leafhopper species Graphocephala fennahi was detected in the Czech Republic for the first time as a new alien insect species feeding on Rhododendron. The species is native to North America and was introduced in
Pavel Špryňar
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Holarctic Insects Adventive in Michigan: New and Additional Records (Homoptera, Heteroptera, Coleoptera, Neuroptera) [PDF]
, 2017 Fourteen European insects in the Homoptera (4 species), Heteroptera (5), Coleoptera (4), and Neuroptera (1) are reported from Michigan. Ten are new state records (one new Ohio record is given).
Wheeler, A. G, Jr.
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Graellsia, 2016 Se describe e ilustra Telmatococcus igniumterrae gen. nov. et sp. nov. basado en el material recolectado en una turbera de esfagno situada en el extremo sur de Sudamérica (Tierra del Fuego).
Ilya A. Gavrilov-Zimin +1 more
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Abundance of Cereal Aphids (Homoptera: Aphididae) and Their Predators in Spring Wheat-Alfalfa Intercrops Under Different Crop Management Intensities [PDF]
, 2018 Natural infestations of cereal aphids and abundance of their predators were compared from 1990 through 1993 among plots of intercropped spring wheat and alfalfa grown under high, intermediate, or low crop management intensity (CMI).
Evenson, Paul D +2 more
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Graellsia, 2001 Los Tiflocíbinos son un grupo de insectos fitófagos poco conocidos en la Península Ibérica. Hasta ahora han sido citadas solamente unas setenta especies de cigarrillas.
D. Aguin Pombo
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The Distribution and Spread of (Homoptera: Aphididae) in the North-Central States with Notes on its Hosts, Biology, and Origin [PDF]
, 2017 (excerpt) Hyadaphis tataricae (Aizenberg). an aphid known from eastern Europe, is rapidly becoming a pest on ornamental honeysuckles (Lonicera spp.) throughout the north-central states.
Voegtlin, David
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Three New Food Plants and First Wisconsin Record of \u3ci\u3ePublilia Reticulata\u3c/i\u3e (Hemiptera: Membracidae) [PDF]
, 2017 Publilia reticulata was found feeding on the composites Silphium perfoliatum, S. integrifolium and Ambrosia trifida at eight sites in five Wisconsin counties in 1993-1995. This is the first report of P. reticulata using these plants and of its occurrence
Williams, Andrew H
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Description of the Fifth Instar of \u3ci\u3eEpiptera Opaca\u3c/i\u3e (Homoptera: Fulgoroidea: Achilidae) [PDF]
, 2017 (excerpt) Epiptera opaca (Say) ranges from Quebec south to Georgia and west to Ontario and Mississippi; it has also been recorded from British Columbia (Beirne 1950, Wilson and McPherson 1980).
Wilson, Stephen W
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Ontogeny of the Tibial Spur in \u3ci\u3eMegamelus Davisi\u3c/i\u3e (Homoptera: Delphacidae) and its Bearing on Delphacid Classification [PDF]
, 2017 The forms of the nymphal tibial spur in Megamelus davisi Van Duzee, and their relation to Muir\u27s classification of delphacid subfamilies and tribes, are ...
McPherson, J. E, Wilson, S. W
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