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Oviposition behavior in lepidoptera
TLDR
The oviposition step is particularly crucial in the Lepidoptera, because the hatching larvae are often relatively immobile and thus depend on the judicious choice of food plant by the adult female.
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The chemical world of crucivores: lures, treats and traps
  • J. Renwick
  • Biology, Environmental Science
  • 1 July 2002
TLDR
Comparative studies indicate that common resistance mechanisms are involved and bioassays have been developed to elucidate the chemical nature of this resistance.
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Dual Chemical Barriers Protect a Plant Against Different Larval Stages of an Insect
TLDR
Feeding bioassays with different larval stages of the insect were used to monitor the isolation and identification of two bioactive constituents that could explain the natural resistance of this plant.
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Isothiocyanates Stimulating Oviposition by the Diamondback Moth, Plutella xylostella
Recognition of cabbage as a host plant for the diamondback moth (DBM) has previously been shown to depend on compounds that are extracted by soaking intact foliage in chloroform. Analysis of such…
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Seasonal and Population Variation in Flavonoid and Alliarinoside Content of Alliaria petiolata
TLDR
Variation in the chemistry of the plant may account for observed variation in development rates and survival of the larvae and several apigenin compounds were isolated and identified by spectral studies.
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PHEROMONES IN IPS (COLEOPTERA: SCOLYTIDAE): OCCURRENCE AND PRODUCTION
Abstract Comparative gas chromatographic analyses of volatiles generated by Ips indicate the presence of cis- and trans-verbenol in hindguts of the 12 species investigated. The biosynthesis of…
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Sequestration of Glucosinolates by Harlequin Bug Murgantia histrionica
TLDR
The study shows that M. histrionica can sequester glucos inolates from its host plants for use in defense against predation and that the bugs can retain the glucosinolates for an extended period of time.
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Cross habituation to feeding deterrents and acceptance of a marginal host plant by Pieris rapae larvae
TLDR
Dietary exposure to unrelated plant chemicals can profoundly affect insect acceptance of a plant that contains feeding deterrents and that cross habituation of larvae to deterrents occurs in response to certain chemical constituents of nasturtium and wheat germ diet.
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Isolation of beauvericin as an insect toxin from Fusarium semitectum and Fusarium moniliforme var. subglutinans
TLDR
The major toxic metabolite was isolated and found to be the cyclodepsipeptide, beauvericin, this is the first report of the isolation of beauversicin from the genus Fusarium.
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Experience‐based food consumption by larvae of Pieris rapae: addiction to glucosinolates?
TLDR
Bioassays of cowpea extracts failed to show any deterrent activity and supported the conclusion that addiction to glucosinolates is responsible for the fixation of P. rapae larvae on their host plants.
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