Laboratory evaluation of Artemisia annua L. extract and Artemisinin against Epilachna paenulata and Spodoptera eridania.

MAGGI, M. E.; MANGEAUD, A.; CARPINELLA, M. C.; FERRAYOLI, C. G.; VALLADARES, G.; PALACIOS, S. M.

JOURNAL OF CHEMICAL ECOLOGY

Springer Science

Año: 2005 vol. 31 p. 1527 - 1527

0098-0331

p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: justify">Ethanolic extract of aerial parts of Artemisia annua L. and artemisinin were evaluated as anti-insect products. In a feeding deterrence assay on Epilachna paenulata Germ (Coleoptera: Coccinellidae) larvae, complete feeding rejection was observed at an extract concentration of 1.5 mg/cm2 on pumpkin leaf tissue. The same concentration produced a feeding inhibition of 87% in Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae). In a no-choice assay, both species ate less and gained less weight when fed on leaves treated with the extract. Complete mortality in E. paenulata and 50% mortality in S. eridania were observed with extract at 1.5 mg/cm2