Screening for extracts with insect antifeedant properties in native plants from Central Argentina

DEL CORRAL, S.; DIAZ NAPAL, GEORGINA N.; ZARAGOZA MARIANO; CARPINELLA MARÍA C.; RUIZ, GUSTAVO M.; PALACIOS SARA M.

Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas

Universidad de Santiago de Chile

Año: 2014 vol. 13 p. 498 - 505

0717 7917

Ethanol extracts obtained from aerial parts of 64 native plants from Central Argentina were tested for their insect antifeedant activity against Epilachna paenulata (Coleoptera: Coccinellidae) by choice test. Extracts derived from Achyrocline satureioides (Asteraceae), Baccharis coridifolia (Asteraceae), Baccharis flabellata (Asteraceae), Ruprechtia apetala (Polygonaceae) and Vernonanthura nudiflora (Asteraceae), showed more than 97% inhibition of the feeding of E. paenulata at 100 g/cm2. These active extracts were further evaluated for their effectiveness against Spodoptera frugiperda (Lepidoptera: Noctuidae). All these extracts except for that derived from A. satureioides, negatively influenced the feeding behavior of S. frugiperda at 100 microg/cm2.