Effect of Piper hispidum (Piperaceae) on Caterpillars of Spodoptera frugiperda (J.E.SMITH., 1797) (Lep .: Noctuidae) on Artificial Diet

Abstract

The objective of this work was to determine the deleterious effects of extracts of the native plant Piper hispidum on the development and mortality of Spodoptera frugiperda. The newborn caterpillars, 50 per treatment, fed with artificial diet with methanolic extract of P. hispidum added to the diet at 0.001; 0.006; 0.03; 0.2 and 1%, and as a control diet was used without the extract of the plant. The experiments were conducted in the Climatized Chamber - BOD, temperature of 26 ± 2ºC and photophase of 14 hours. The parameters analyzed were larval and pupal duration and mortality, pupal weight, posture per female and egg viability. The addition of the methanolic extract of P. hispidum in the diet causes larval and pupal elongation, reduction of pupal weight, number of eggs per female and reduction of viability of eggs.