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87 recherche sur le mot-clé
'aphid' 
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R. Hufbauer | 2002
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P. Christiansen-Weniger ; J. Hardie | 2000Wing formation in presumptive alate morphs (virginoparae and males) was observed for the pea aphid, Acyrthosiphon pisum, exposed to attack by the parasitoid, Aphidius ervi, at different stages of host development. Morphological abnormalities in [...]
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P. Miles | 1999Within the Aphidoidea, most species of Aphididae, as long as they are in small numbers and not carrying plant viruses, do little perceptible damage to their food plants. In species that cause toxicoses, it is usually assumed that some component [...]
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G. Dawson ; D. Griffiths ; L. Merritt ; A. Mudd ; J. Pickett ; L. Wadhams ; C. Woodcock | 1990
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J. Pritchard | 1996The aim of the present study was to quantify osmotic pressures directly in the translocation pathway, from leaf to growing root tip, in order to understand the forces driving solutes from a source to a sink. Solutes move through the translocatio[...]
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H. Van Emden, Editeur scientifique ; R. Harrington, Editeur scientifique | Wallingford [GBR] : CAB International | 2007
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The probing and feeding behaviour of the cabbage aphid, Brevicoryne brassicae (L.), (Homoptera, Aphididae) was studied on several plant species that represented various levels of acceptability: Sinapis alba L. (a permanent host plant), Capsella [...]
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F. Berlandier | 1996Two viviparous parthenogenetic clones of the green peach aphid, Myzus persicae (Sulzer), one collected from Rydalmere, New South Wales (NSW), and the other from South Perth (SP), Western Australia, were reared on radish, Raphanus sativus L. cv. [...]
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R. Chapman ; E. Bernays ; S. Simpson | 1981
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M. Caillaud | 1999Host specialization plays a central role in the diversification of herbivorous insects and yet we know very little about the evolution of this trait. Populations of the pea aphid, Acyrthosiphon pisum (Harris), are specialized and locally adapted[...]
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H. Van Roermond ; J. Groot ; W. Rossing ; R. Rabbinge | 1986
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J. Guldemond | 1990
