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Auteur A. Dixon |
Documents disponibles écrits par cet auteur (60)
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A. Dixon ; R. Chambers ; T. Dharma | 1982article/chapitre/communication
D. Jackson ; A. Dixon | 19961. The green spruce aphid Elatobium abietinum, was less active and more likely to feed when on mature rather than young needles of Sitka spruce. 2. Compared with survival on mature needles, survival of aphids on young needles was significantly r[...]article/chapitre/communication
G. Hopkins ; A. Dixon | 2000To establish the importance of different cues for feeding site location in aphids, two birch-feeding species were given access to leaves that were either orientated normally or inverted. Euceraphis betulae used gravity and/or light as the main c[...]article/chapitre/communication
J. Thacker ; T. Thieme ; A. Dixon | 1997Linear regression models have been constructed to describe variation in abundance of Aphis fabae, Myzus persicae and Acyrthosiphon pisum populations in Restock, Germany. Egg densities, which have been used successfully in the past to predict A. [...]article/chapitre/communication
When reared under constant conditions from egg hatch the proportion of offspring of Sitobion avenae (F.) (Aphididae: Macrosiphini) that developed into winged individuals declined from the second to fourth generation. The winged individuals produ[...]article/chapitre/communication
J. Forrest ; A. Hussain ; A. Dixon | 1973ouvrage
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B. Leszczynski ; T. Bakowski ; B. Rozbicka ; H. Matok ; A. Urbanska ; A. Dixon ; B. Leszczynski, - Editeur scientifique ; T. Bakowski, - Editeur scientifique ; B. Rozbicka, - Editeur scientifique ; H. Matok, - Editeur scientifique ; A. Urbanska, - Editeur scientifique ; A. Dixon, - Editeur scientifique | 1996article/chapitre/communication
A. Dixon ; S. Wratten | 1971article/chapitre/communication
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K. Walters ; A. Dixon ; G. Eagles | 1984article/chapitre/communication
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A. Risebrow ; A. Dixon ; A. Risebrow, - Editeur scientifique ; A. Dixon, - Editeur scientifique | New York [USA] : Wiley & Sons | 1987article/chapitre/communication
The results presented in this paper suggest that sugar beet became less suitable as a host for aphids after late June and early July, when the plants were at the 10-12 leaf stage. This was indicated by a faster rate of aphid mortality and greate[...]