Tradescantia pallida (Commelinaceae) Promotes Reductions in Plutella xylostella (Lepidoptera: Plutellidae) Populations

The feeding activity of Plutella xylostella in brassica crops can lead to large losses; thus, pesticides that prevent during the larval stage or metamorphosis this insect be used for its control. In study, effects two types aqueous extracts Tradescantia pallida on different life P. cycle were tested; neither extracts, which obtained by infusion and maceration, had been tested against xylostella. biological variables evaluated pupal duration viability, weight, sex ratio, longevity females, fecundity, fertility oviposition period. There was no significant difference phase between bioassay treatments; however, viability lower when individuals exposed both T. extracts. Reduced observed among treated with application Treatment extract caused lowest females. results study allow us propose bioextract as an alternative pest management, emphasizing technique small producers and/or organic.