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Insecticidal activity of chemical constituents from Aristolochia pubescens against Anticarsia gemmatalis larvae
Author(s) -
Nascimento Isabele R,
Murata Afonso T,
Bortoli Sergio A,
Lopes Lucia MX
Publication year - 2004
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.805
Subject(s) - anticarsia gemmatalis , bioassay , aristolochia , biology , acetone , aristolochic acid , aristolochiaceae , traditional medicine , larva , botany , toxicology , caterpillar , biochemistry , medicine , genetics
Abstract Acetone and ethanol extracts of the tubercula and several compounds isolated from Aristolochia pubescens (Willd) were bioassayed on velvetbean caterpillars, Anticarsia gemmatalis (Hübner), for evaluation of the insecticidal activities. Of the extracts subjected to bioassay, the acetone extract showed the highest activity. (−)‐Cubebin did not show activity against soybean caterpillars, whereas aristolochic acid and ent ‐kaur‐15‐en‐17‐ol increased the larval period. These compounds, and (+)‐eudesmin and (+)‐sesamin, reduced the viability of this period, giving rise to malformed adults. These extracts and compounds are therefore potential botanical insecticide agents for the control of velvetbean caterpillars in soybean crops. Copyright © 2004 Society of Chemical Industry