• Publications
  • Influence
The functions of the maxillary palps of acridids have been investigated in experiments with Locusta migratoria migratorioides (R. & F.), Schistocerca gregaria (Forsk.) und Chorthip‐pus purallelusExpand
  • 99
  • 4
A comparison of dietary selection behaviour in larval Locusta migratoria and Spodoptera littoralis
ABSTRACT. . Final instar nymphs of the oligophagous acridid Locusta migratoria (L.) and larvae of the polyphagous noctuid Spodoptera littoralis (Boisduval) were fed for 4, 8 or 12 h, the conditioningExpand
  • 103
  • 3
A behavioural and electrophysiological study of the role of tarsal chemoreceptors in feeding by adults of Spodoptera, Heliothis virescens and Helicoverpa armigera
Abstract Adult females of Spodoptera littoralis, Spodoptera frugiperda, Helicoverpa armigera and Heliothis virescens were tested with a range of sugars, amino acids, allelochemics and plant extracts.Expand
  • 62
  • 3
Effects of selected botanical insecticides on the behaviour and mortality of the glasshouse whitefly Trialeurodes vaporariorum and the parasitoid Encarsia formosa
Toxicity and behavioural bioassays were used to assess the lethal and sub‐lethal effects of two naphthoquinones from the Chilean plant Calceolaria andina L. (Scrophulariaceae), two products derivedExpand
  • 48
  • 3
Influence of species of host plants on the predation of thrips by Neoseiulus cucumeris, Iphiseius degenerans and Orius laevigatus
A leaf‐disc bioassay was used to compare the predation levels of two species of predatory mites (Neoseiulus cucumeris (Oudemans) and Iphiseius degenerans (Berlese)) and a predatory bug (OriusExpand
  • 27
  • 3
Food selection in adults and larvae of three species of Lepidoptera: a behavioural and electro physiological study
Adults and larvae of Spodoptera littoralis, Heliothis virescens and Heliothis armigera were tested with a range of sugars, amino acids, sugar alcohols and allelochemics. Feeding behaviour wasExpand
  • 81
  • 2
The anatomy and histology of the maxillary palp of Schistocerca gregaria (Orthoptera, Acrididae)
The general anatomy and histology of the maxillary palp are described with particular attention to the number, distribution and structure of the various sensilla.
  • 8
  • 2
Relationship Between Nutritional Composition of Plant Species and Infestation Levels of Thrips
Levels of soluble protein and carbohydrate (raffinose, sucrose, glucose, and fructose) in leaves from a selection of plant species were measured to determine if a relationship existed between theseExpand
  • 45
  • 1
Food selection by locusts: The rôle of learning in rejection behaviour
The food selection behaviour of male fifth instar nymphs of Locusta migratoria was monitored on the host plant wheat and on the non‐host plants Senecio vulgaris, S. jacobaea and Brassica oleracea.Expand
  • 43
  • 1
Identification of a component of the female sex pheromone of callosobruchus analis (coleoptera: bruchidae)
Abstract ( Z )-3-methyl-2-heptenoic acid (I) has been identified in volatiles from virgin females of the Bruchid pest Callosobruchus analis (Fabricius) as a component eliciting an EAG response fromExpand
  • 35
  • 1