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      DESENVOLVIMENTO E REPRODUÇÃO DE PODISUS NIGRISPINUS (HETEROPTERA: PENTATOMIDAE) ALIMENTADO COM LAGARTAS DE HELIOTHIS VIRESCENS (LEPIDOPTERA: NOCTUIDAE) Translated title: DEVELOPMENT AND REPRODUCTION OF PODISUS NIGRISPINUS (HETEROPTERA: PENTATOMIDAE) FED ON HELIOTHIS VIRESCENS (LEPIDOPTERA: NOCTUIDAE) CATERPILLARS

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          Abstract

          Heliothis virescens (Fabr.) (Lepidoptera: Noctuidae) é um inseto polífago amplamente distribuído no continente americano, onde o controle químico é a tática mais utilizada. Os impactos de seu uso tornam necessária a busca de alternativas de manejo desse inseto-praga. Assim, este trabalho teve por objetivo avaliar o desenvolvimento e a reprodução de Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) com lagartas de H. virescens, comparado à alimentação com pupas de Tenebrio molitor L. (Coleoptera: Tenebrionidae). O experimento foi conduzido em sala climatizada a 25 ± 1 ºC, 70 ± 15% de umidade relativa e 14 horas de fotofase. O delineamento foi o inteiramente casualizado com 50 e 20 repetições nas etapas I e II, respectivamente. O desenvolvimento ninfal desse predador foi semelhante com essas presas, mas o número de posturas, ovos e ninfas por fêmea, além do intervalo entre posturas de P. nigrispinus apresentaram melhores resultados com T. molitor. Assim, P. nigrispinus apresentou desenvolvimento ninfal satisfatório com lagartas de H. virescens, mas o sucesso reprodutivo foi melhor quando recebeu T. molitor como presa.

          Translated abstract

          Heliothis virescens (Fabr.) (Lepidoptera: Noctuidae) is a polyphagous insect widely distributed in the American continent, in which the use of chemical pesticides is the most common control strategy. The impacts caused by such practice make it necessary to seek alternatives for the management of this insect-pest. The objective of this work was to evaluate the development and reproduction of Podisus nigrispinus ( Dallas) (Heteroptera: Pentatomidae) fed on H. virescens caterpillars compared with those fed on Tenebrio molitor L. (Coleoptera: Tenebrionidae) pupae. The experiment was carried out in an acclimatized room 25 ± 1 ºC, 70 ± 15% relative humidity and photophase of 14 hours. The experiment was arranged in a complete randomized design with 50 and 20 repetitions at stages I and II, respectively. The nymphal development of this predator was similar with both prey, but the results for number of egg-layings, eggs and nymphs per female, as well as the interval between egg-layings of P. nigrispinus were better with T. molitor. In conclusion, P. nigrispinus showed satisfactory nymphal development with H. virescens caterpillars, but better reproductive success when it was fed on T. molitor prey.

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          Most cited references11

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          Insect Pest Management

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            Intrinsic competition between larval parasitoids with different degrees of host specificity

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              Desenvolvimento de Podisus nigrispinus (Dallas, 1851) (Hemiptera: Pentatomidae) alimentado com lagartas de Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae)

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                Author and article information

                Journal
                idesia
                Idesia (Arica)
                Idesia
                Universidad de Tarapacá. Facultad de Ciencias Agronómicas (Arica, , Chile )
                0718-3429
                December 2010
                : 28
                : 3
                : 17-24
                Affiliations
                [03] Dourados MS orgnameEmbrapa Agropecuaria Oeste Brasil
                [04] Alegre ES orgnameUFES/CCA orgdiv1Depto. de Produção Brasil
                [02] Viçosa MG orgnameUFV orgdiv1Depto. de Biologia Animal Brasil
                [01] Viçosa MG orgnameUFV orgdiv1Depto. de Fitotecnia Brasil
                Article
                S0718-34292010000300003 S0718-3429(10)02800300003
                10.4067/S0718-34292010000300003
                2f81a88c-bde1-4c09-8ac7-284d7ca42f61

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

                History
                : 10 April 2008
                : 31 January 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 8
                Product

                SciELO Chile


                development rate,Algodoeiro,controle biológico,taxa de desenvolvimento,ganho reprodutivo,reproductive gain,Cotton,biological control

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