Molecular identification for Helicoverpa spp. in Bt and non-Bt crops in central Argentina

Authors

  • Emilia Inés Balbi Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Marcos Juárez, Ruta 12, Km 3, CP 2580 Marcos Juárez.
  • Fernando Miguel Flores Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Marcos Juárez, Ruta 12, Km 3, CP 2580 Marcos Juárez.
  • Daniela Sandra Tosto Instituto Nacional de Tecnología Agropecuaria, Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Nicolás Repetto y de los Reseros, CP 1686 Hurlingham.
  • Joel Demián Arneodo Instituto Nacional de Tecnología Agropecuaria, Instituto de Microbiología y Zoología Agrícola, Nicolás Repetto y de los Reseros, CP 1686 Hurlingham.

DOI:

https://doi.org/10.1590/S1678-3921.pab2022.v57.27083

Keywords:

Helicoverpa zea, Helicoverpa gelotopoeon, Helicoverpa armigera, PCR-RFLP, Bt crops, Helicoverpa complex

Abstract

The objective of this work was to identify, by molecular analysis, the species of the genus Helicoverpa in corn, soybean, and lucerne Bt and non‑Bt crops, in central Argentina. A total of 1,343 carterpillars were analyzed by PCR-RFLP. Helicoverpa zea was the only species detected on non-Bt and on most Bt corn hybrids. The species H. gelotopoeon predominated on non‑Bt soybean and on lucerne, and H. zea larvae occurred in low proportion. Bt soybean did not show Helicoverpa spp. infestations. The exotic H. armigera was not found, though adult moths of this species were light-trapped in a complementary sampling.

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Published

2022-07-22

How to Cite

Balbi, E. I., Flores, F. M., Tosto, D. S., & Arneodo, J. D. (2022). Molecular identification for <i> Helicoverpa </i> spp. in Bt and non-Bt crops in central Argentina. Pesquisa Agropecuaria Brasileira, 57(Z), e02317. https://doi.org/10.1590/S1678-3921.pab2022.v57.27083

Issue

V.57, Jan./Dec., 2022 :Continuos publication

Section

ENTOMOLOGY