Specht, Alexandre, et al. “Morphological and Molecular Identification of Helicoverpa Armigera (Lepidoptera: Noctuidae) and Expansion of Its Occurrence Record in Brazil”. Pesquisa Agropecuaria Brasileira, vol. 48, no. 6, Sept. 2013, pp. 689-92, https://doi.org/10.1590/S1678-3921.pab2013.v48.15732.