Oviposition behavior of sitophilus zeamais Motschulsky 1855 (coleoptera: curculionidae) in postharvest grains of corn, wheat, barley and rice, Barranca 2022
DOI:
https://doi.org/10.52807/qunab.v1i2.18Keywords:
stereoscope, fuchsin, incubator, not sexed, oviposition sitesAbstract
The objective of the research was to determine the oviposition preference of the corn weevil (Sitophilus zeamais) in grains. To do this, we carried out an experiment with four treatments consisting of different types of cereals: corn, wheat, barley and rice. In each treatment, we infested 50 grams of grain with 50 adult insects, which we removed after two weeks. Then, we applied the fuchsine staining method and observed 50 random grains of each replicate and each cereal under a stereoscopic microscope to quantify egg laying and determine oviposition sites. The results indicated that the highest average number of eggs was observed in corn grains, followed by wheat, barley and rice grains respectively. Regarding the place of preference for egg laying, we observed that, in corn and barley grains, it was the flank or lateral part of the grain, while in wheat grains it was the front of the grain. On the other hand, in rice grains there was no oviposition site preference, due to the use of piled grain in the trial.
References
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Castro Ortega, L. A. (1996). Estudios de resistencia de maíz a Sitophilus zeamais Mutsch (Coleoptera: curculionidae). Corporación Colombiana de Investigación Agropecuaria.
Cortese, D., Mareco Da Silva, M. M., de Oliveira, G. S., Mussury, R. M., & Fernandes, M. G. (2022). Repellency and Reduction of Offspring Emergence Potential of Some Botanical Extracts against Sitophilus zeamais (Coleoptera: Curculionidae) in Stored Maize. Insects , 13(9), 842. https://doi.org/10.3390/INSECTS13090842
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Copyright (c) 2023 Alfredo Carlos Rodríguez-Cobos, Ligia Isaida Gutiérrez-Deza
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© Los autores. Este artículo es publicado por la QuantUNAB de la Universidad Nacional de Barranca. Este es un artículo de acceso abierto, distribuido bajo los términos de la Licencia Creative Commons Atribución 4.0 Internacional (https://creativecommons.org/licenses/by/4.0/deed.es) que permite Compartir (copiar y redistribuir el material en cualquier medio o formato), Adaptar (remezclar, transformar y construir a partir del material) para cualquier propósito, incluso comercialmente.
