As far as we know flying aphids show only a very limited amount of selective orientation toward plants, and what they do show is visual rather than olfactory (Kennedy and Stroyan, 1959). That is to say selection of the appropriate host plant depends primarily on arrestant stimuli received after landing. This gives rise to some real problems which have seldom been considered. If selection does indeed depend on random landings most of which, therefore, occur on non-host plants, then it seems the aphids must make repeated landings and take-offs if they are to carry out enough “scanning” (sampling) of the flora. In fact, Moericke (1955) described just such a behaviour pattern long ago under the name Befallsflug [translated into English as “attacking flight” (Johnson, 1958) or “alighting flight” (Kennedy et al., 1961)]. This characterizes the behavioural phase which follows the phase of Distanzflug.


Selective Orientation Wind Drift Alate Aphid Behavioural Phase Flight Chamber 
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Copyright information

© Akadémiai Kiadó, Budapest 1976

Authors and Affiliations

  • J. S. Kennedy
    • 1
  1. 1.Imperial College Field StationAscot, BerksUK

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