Insecticidal activity of Solanum sodomaeum (Solanaceae) extracts on Schistocerca gregaria (Forskål) larvae

Abstract The effects of four extracts of Solanum sodomaeum fruit peel (Solanaceae) were observed in the laboratory on Schistocera gregaria fifth instar larvae. Larvae fed with lettuce soaked in various extracts showed a decrease in their food consumption, due probably to a repulsive and antifeedant effect of this plant. Both survival and development were affected: prolongation of the fifth instar and the appearance of malformations at the imaginal molt.