Resumen

URIBE-RIVERA, Saúl Enrique et al. Extracts with nano and microparticles on Sitophilus zeamais (Coleoptera: Curculionidae). Rev. Mex. Cienc. Agríc [online]. 2025, vol.16, n.3, e3633.  Epub 12-Ago-2025. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v16i3.3633.

Sitophilus zeamais is an insect considered a primary pest of stored corn grains whose damage compromises corn production. In the search for options for its control, nanotechnology combined with plant extracts could be a viable option. The research was conducted in 2023 at the Department of Agricultural Parasitology with the aim of evaluating the insecticidal effect of two commercial extracts: Higuer® and Etos®, alone and in combination with nano- and microparticles of silicon, copper, zinc and graphite. The residual film bioassay technique was used for the evaluation; the nanoformulations were prepared at the concentration of 3% of each of the nano- and micromaterials. LC50 of two commercial extracts alone and in combinations with nano- and microparticles was determined. It was observed that extracts combined with silicon nanoparticles have the lowest values of LC50, followed by a copper, graphite, and zinc nanoparticles. In the values of the combinations with microparticles, they were equal to or higher than those found with the extract alone. It was concluded that the combination of the two extracts with the silicon nanoparticles stands out from the rest of the materials as they have lower LC50 values.

Palabras llave : corn weevil; nanotechnology; stored grains.

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