Behavioural and neurophysiological responses of Spodoptera littoralis to azadirachtin and a range of synthetic analogues

M. S.J. Simmonds, W. M. Blaney, S. V. Ley, J. C. Anderson, R. Banteli, A. A. Denholm, P. C.W. Green, R. B. Grossman, C. Gutteridge, L. Jennens, S. C. Smith, P. L. Toogood, A. Wood

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The antifeedant activity of azadirachtin and 56 azadirachtin analogues, including 22, 23‐dihydroazadirachtin, against larvae of Spodoptera littoralis was investigated using behavioural and electrophysiological bioassays. None of the analogues was as active as azadirachtin, although many showed significant antifeedant activity at high concentrations. The majority of the analogues stimulated a dose‐dependent response from a neurone in the medial styloconic maxillary sensilla which correlated with the behavioural activity. Methylation of the hydroxy substitutions on the azadirachtin molecule usually resulted in a decrease in antifeedant activity, as did the addition of bulky groups to the dihydrofuran ring. 1995 The Netherlands Entomological Society

Original languageEnglish
Pages (from-to)69-80
Number of pages12
JournalEntomologia Experimentalis et Applicata
Volume77
Issue number1
DOIs
StatePublished - Oct 1995

Keywords

  • Spodoptera littoralis
  • antifeedant
  • azadirachtin
  • azadirachtin analogues
  • behaviour
  • electrophysiology

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science

Fingerprint

Dive into the research topics of 'Behavioural and neurophysiological responses of Spodoptera littoralis to azadirachtin and a range of synthetic analogues'. Together they form a unique fingerprint.

Cite this