A chemical basis for differential acceptance ofErysimum cheiranthoides by twoPieris species

Abstract

Wormseed mustard,Erysimum cheiranthoides, is unacceptable as a host for the cabbage butterfly,Pieris rapae. However, it is preferred for oviposition byPieris napi oleracea in the greenhouse. Isolation and identification of the oviposition stimulants toP. napi oleracea were accomplished by C18 open-column chromatography, TLC, ion-exchange chromatography… (More)
DOI: 10.1007/BF00993689

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