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    Important pest species of the Spodoptera complex: Biology, thermal requirements and ecological zoning

    Parra, José Roberto Postali and Coelho, Aloisio and Cuervo-Rugno, Johanna Bajonero and Garcia, Adriano Gomes and de Andrade Moral, Rafael and Specht, Alexandre and Neto, Durval Dourado (2022) Important pest species of the Spodoptera complex: Biology, thermal requirements and ecological zoning. Journal of Pest Science, 95 (1). pp. 169-186. ISSN 1612-4758

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    In South America, especially in Brazil, four members of the Spodoptera complex, Spodoptera albula (Walker, 1857), S. cosmioides (Walker, 1858), S. eridania (Stoll, 1782), and S. frugiperda (J.E. Smith, 1797) are important pests of many crops, in particular corn, soybean and cotton crops. Spodoptera eridania and S. frugiperda have recently invaded Africa and caused serious crop damage, and S. frugiperda has invaded Asia and Oceania. The present study tested the effect of a range of seven temperatures (18–34 °C) on these four Spodoptera species simultaneously, assessing several biological variables. Based on the thermal tolerances obtained experimentally, the ecological zoning of each species in Brazil was mapped and compared spatially, according to the crop calendar of three important crops in different regions (first and second corn harvest, soybean and cotton). Our results showed that S. eridania had the lowest temperature threshold (Tt), i.e., it is favored in regions with more moderate temperatures; and did not tolerate the warmest temperature, failing to complete its development at 34 °C. In contrast, S. albula did not complete its development at 18 °C and may be more successful in warmer regions. In general, S. frugiperda and S. cosmioides were able to develop over a wide range of temperatures, and S. frugiperda showed a higher biological potential at all temperatures evaluated. Our biological data and the computational code are available online. The extensive data produced here can help other entomologists to delimit the spatial distribution of the Spodoptera complex and forecast outbreaks of these pests.

    Item Type: Article
    Additional Information: Cite as: Parra, J.R.P., Coelho, A., Cuervo-Rugno, J.B. et al. Important pest species of the Spodoptera complex: Biology, thermal requirements and ecological zoning. J Pest Sci 95, 169–186 (2022).
    Keywords: Invasive pest; Spatial modeling; Fall armyworm;Integrated pest management;
    Academic Unit: Faculty of Science and Engineering > Mathematics and Statistics
    Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 17903
    Identification Number:
    Depositing User: Rafael de Andrade Moral
    Date Deposited: 30 Nov 2023 11:32
    Journal or Publication Title: Journal of Pest Science
    Publisher: Springer Link
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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