Chemical stimulants and deterrents regulating acceptance or rejection of crucifers by cabbage butterflies

GravidPieris rapae butterflies oviposit on many, but not all, crucifers. Rejection ofErysimum cheiranthoides andCapsella bursa-pastoris was initially explained by the presence of chemical deterrents in the plants. Analyses and bioassays of plant extracts indicated the absence of oviposition stimulan...

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Veröffentlicht in:Journal of chemical ecology 1987-07, Vol.13 (7), p.1771-1776
Hauptverfasser: Renwick, J.A.A, Radke, C.D
Format: Artikel
Sprache:eng
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Zusammenfassung:GravidPieris rapae butterflies oviposit on many, but not all, crucifers. Rejection ofErysimum cheiranthoides andCapsella bursa-pastoris was initially explained by the presence of chemical deterrents in the plants. Analyses and bioassays of plant extracts indicated the absence of oviposition stimulants inC. bursa-pastoris, but similar chemical separation ofE. cheiranthoides extracts revealed the presence of stimulants as well as deterrents. Choice tests illustrate how acceptance or rejection of a plant by an insect may depend on the balance of positive and negative chemical stimuli within the plant.
ISSN:0098-0331
1573-1561
DOI:10.1007/BF00980217