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      Selección de nematodos entomopatogenicos para el control de Mahanarva fimbriolata (Hemiptera: Cercopidae) Translated title: Screening of entomopathogenic nematodes to control Mahanarva fimbriolata (Hemiptera: Cercopidae)

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          Abstract

          Se seleccionaron aislamientos de nematodos entomopatogénicos (NEPs) contra el salivazo de los pastos, Mahanarva fimbriolata. Se desarrolló un experimento en laboratorio donde ninfas de salivazo se expusieron a siete aislamientos (Steinernema anomali, S. carpocapsae, S. feltiae, S. riobravis, Heterorhabditis amazonensis RSC5, H. bacteriophora HP88 y H. baujardi LPP7) en tres concentraciones (200, 400 y 800 NEP/ninfa). Luego de la selección de los aislamientos más virulentos en laboratorio, se efectuó un experimento en invernadero. El aumento de la concentración no proporcionó incremento en la mortalidad ninfal de M. fimbriolata en laboratorio. Las ninfas de salivazo fueron susceptibles a todos los aislamientos, destacándose S. riobravis con un 90% de mortalidad, y S. feltiae con un 80%. El desempeño en invernadero no fue diferente entre los aislados, alcanzando una mortalidad ninfal de 48% (S. carpocapsae) y 72% (S. feltiae). Hay disminución de la eficiencia de los nematodos en invernadero comparada con la eficiencia en laboratorio.

          Translated abstract

          We aimed to screen entomopathogenic nematodes (EPNs) strains against the root spittlebug, Mahanarva fimbriolata. An assay was performed at laboratory in which nymphs of the insect were exposed to seven EPNs strains (Steinernema anomali, S. carpocapsae, S. feltiae, S. riobravis, Heterorhabditis amazonensis RSC5, H. bacteriophora HP88 and H. baujardi LPP7) under three concentrations (200, 400 and 800 EPNs/nymph). After the laboratory screening a greenhouse assay was carried out using the most pathogenic strains. Increasing concentration didn't increase nymph mortality at laboratory. The root spittlebug nymphs were susceptible to all strains, with 48% (S. carpocapsae) and 72% (S. feltiae) pathogenicity extremes. A decrease in efficiency was observed in greenhouse tests compared with laboratory tests.

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          Entomopathogenic Nematodes

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            Successes and failures in the use of parasitic nematodes for pest control

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              Behavioral ecology of entomopathogenic nematodes

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                Author and article information

                Journal
                rcen
                Revista Colombiana de Entomología
                Rev. Colomb. Entomol.
                Sociedad Colombiana de Entomología (Bogotá, Distrito Capital, Colombia )
                0120-0488
                2665-4385
                December 2011
                : 37
                : 2
                : 198-202
                Affiliations
                [02] Minas Gerais orgnameEmbrapa Dairy Cattle - Eugênio do Nascimento Street orgdiv1Entomology Laboratory Brazil amauad@ 123456cnpgl.embrapa.br
                [03] orgnameEmbrapa Dairy Cattle orgdiv1Entomology Laboratory tiago@ 123456cnpgl.embrapa.br
                [01] Minas Gerais orgnameFederal University of Juiz de Fora orgdiv1Pos-graduation Animal Biology and Behavior Brazil elderspb@ 123456gmail.com
                Article
                S0120-04882011000200005 S0120-0488(11)03700205
                51861b08-23c8-472b-8859-cd218a670ca7

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

                History
                : 12 September 2011
                : 23 December 2010
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 5
                Product

                SciELO Colombia

                Self URI: Texto completo solamente en formato PDF (ES)
                Categories
                Sección agrícola

                Steinernema,Heterorhabditis,Spittlebug,Microbial control,Sugarcane,Salivazo de los pastos,Control microbiano,Caña de azúcar

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