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      Atração do predador Doru luteipes (Scudder) (Dermaptera: Forficulidae) por estímulos olfativos de dietas alternativas em laboratório Translated title: Attraction of the predator Doru luteipes (Scudder) (Dermaptera: Forficulidae) by olfactory stimulus of alternative diets in the laboratory

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          Abstract

          Doru luteipes consome lagartas de Spodoptera frugiperda, que é atualmente a principal praga da cultura do milho no Brasil. Normalmente, se 70% das plantas tivessem o predador, a praga seria mantida abaixo do nível de dano econômico. Entretanto, o predador ocorre após a praga danificar as plantas. Assim, a disponibilidade de materiais que atraíssem e antecipassem a presença do predador na lavoura poderia reduzir populações da praga. Desta forma, estudou-se em laboratório a atratividade de dietas artificiais para machos e fêmeas do predador D. luteipes. Os tratamentos foram: pupa desidratada e moída do bicho-da-seda; pólen misto, nas quantidades de 0,05; 0,1; 0,2; 0,5 e 1,0g para ambas as dietas. Em olfatômetro, os estímulos da dieta foram comparados à testemunha. Foram realizadas 30 repetições. Os resultados mostraram que houve atratividade tanto para machos quanto para fêmeas. Em geral, a atração foi aumentada com o aumento da quantidade das dietas. Estudos adicionais foram propostos para testar a viabilidade do uso dos materiais como estratégia de manejo da praga no campo.

          Translated abstract

          Doru luteipes consumes larvae of Spodoptera frugiperda, which is at this moment the main pest of maize crop in Brazil. In general, if 70% of the plants had this predator the pest would be kept under the threshold of economic damage. However, the predator occurs after the pest damages the plants. Thus, the availability of materials that would attract and anticipate the presence of predator in the field,could reduce pest populations. In such a way, it was studied in the laboratory the attractiveness of artificial diets for males and females of the D. luteipes. The treatments were: ground dehydrated pupa of the silk worm and pollen mixture in the amounts of 0.05, 0.1, 0.2, 0.5 e 1.0g, for both the diets The diet stimulus were compared to control using a olfactometer. In general, attraction increased with rising amounts of the diets. Further investigations were proposed to test the viability of the usage of the materials to manage the pest in the field.

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          The influence of glucosinolates and sugars on feeding by the cabbage stem flea beetle, Psylliodes chrysocephala

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            The Response of Corn Earworm Moths to Various Sugar Solutions

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              Efeito do predador Doru luteipes (Scudder) sobre o crescimento populacional de Schizaphis graminum (Rondani) em diferentes genótipos de sorgo

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                Author and article information

                Journal
                cr
                Ciência Rural
                Cienc. Rural
                Universidade Federal de Santa Maria (Santa Maria, RS, Brazil )
                0103-8478
                1678-4596
                June 2007
                : 37
                : 3
                : 623-627
                Affiliations
                [01] Londrina PR orgnameUniversidade Estadual de Londrina orgdiv1Centro de Ciências Agrárias orgdiv2Departamento de Agronomia Brasil
                [02] Londrina PR orgnameUniversidade Estadual de Londrina orgdiv1Centro de Ciências Agrárias orgdiv2Departamento de Agronomia Brasil mventura@ 123456uel.br
                Article
                S0103-84782007000300004 S0103-8478(07)03700304
                10.1590/S0103-84782007000300004
                f073db83-79e1-42a6-9f3f-020d3bf1f441

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 25 October 2006
                : 28 March 2006
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 15, Pages: 5
                Product

                SciELO Brazil

                Categories
                Defesa Fitossanitária

                Spodoptera frugiperda,biological control and dermaptera,Zea Mays,controle biológico e dermaptera

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