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Interspecific Variation in Susceptibility to Insecticides by Lepidopteran Pests of Soybean, Cotton, and Maize Crops From Brazil.
Machado, Eduardo P; Garlet, Cínthia G; Weschenfelder, Marlon A G; Führ, Fábio M; Godoy, Daniela N; Pretto, Venicius E; Contini, Rafael E; Franco, Cláudio R; Omoto, Celso; Bernardi, Oderlei.
Afiliación
  • Machado EP; Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
  • Garlet CG; Department of Entomology and Acarology, University of São Paulo (USP), Padua Dias Avenue 11, Piracicaba, São Paulo 13418-900, Brazil.
  • Weschenfelder MAG; Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
  • Führ FM; Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
  • Godoy DN; Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
  • Pretto VE; Department of Entomology and Acarology, University of São Paulo (USP), Padua Dias Avenue 11, Piracicaba, São Paulo 13418-900, Brazil.
  • Contini RE; Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
  • Franco CR; Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
  • Omoto C; Department of Agronomy, Santa Catarina State University, Luiz de Camões Avenue 2090, Lages, Santa Catarina 88520-000, Brazil.
  • Bernardi O; Department of Agronomy, Santa Catarina State University, Luiz de Camões Avenue 2090, Lages, Santa Catarina 88520-000, Brazil.
J Econ Entomol ; 115(1): 305-312, 2022 02 09.
Article en En | MEDLINE | ID: mdl-34993551
The interspecific variation in susceptibility to insecticides by lepidopteran species of soybean [Glycine max L. (Merr.)], cotton (Gossypium hirsutum L.), and maize (Zea mays L.) crops from Brazil were evaluated. Populations of Anticarsia gemmatalis (Hübner) (Lepidoptera: Erebidae), Chrysodeixis includens (Walker), Helicoverpa armigera (Hübner), Spodoptera frugiperda (Smith), Spodoptera eridania (Stoll), Spodoptera cosmioides (Walker), and Spodoptera albula (Walker) (Lepidoptera: Noctuidae) were collected from 2019 to 2021. Early L3 larvae (F2 generation) were exposed to the formulated insecticides methoxyfenozide, indoxacarb, spinetoram, flubendiamide, and chlorfenapyr in diet-overlay bioassays. The median lethal concentrations (LC50) were used to calculate tolerance ratios (TR) of each species in relation to the most susceptible species to each insecticide. The lowest LC50 values were verified for A. gemmatalis to all insecticides tested. Chrysodeixis includens and most of the Spodoptera species were moderately tolerant to methoxyfenozide (TR < 8.0-fold) and indoxacarb (TR < 39.4-fold), whereas H. armigera was the most tolerant species to methoxyfenozide (TR = 21.5-fold), and indoxacarb (TR = 106.4-fold). Spodoptera cosmioides, S. eridania, and S. albula showed highest tolerance to spinetoram (TR > 1270-fold), S. eridania, S. frugiperda, and S. albula to flubendiamide (TR from 38- to 547-fold), and S. albula to indoxacarb (TR = 138.6-fold). A small variation in susceptibility to chlorfenapyr (TR < 4.4-fold) was found among the lepidopteran evaluated. Our findings indicate a large variation in susceptibility to indoxacarb, spinetoram, and flubendiamide and a relatively low variation in susceptibility to methoxyfenozide and chlorfenapyr by lepidopteran species of soybean, cotton, and maize from Brazil.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Insecticidas / Mariposas Nocturnas Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: J Econ Entomol Año: 2022 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Insecticidas / Mariposas Nocturnas Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: J Econ Entomol Año: 2022 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido