Monitoreo de insectos plaga mediante SIG aplicados al cultivo de Oryza sativa L. en Naranjal, Ecuador

Abstract

In Ecuador, the cultivation of rice (Oryza sativa L) is affected by various insect pests that cause the deterioration of the vegetation. Therefore, this problem was investigated in the Canton Naranjal in four rice farms covering a total area of 213.8 ha, carrying out "X" sampling with 20 double passes with the entomological net. Geographic Information Systems (GIS) tools were used to geo-reference the insects that prevail in the crop and at the same time observe the locations and know in which phenological stage they are present with the assistance of the BBCH Codification. Thematic maps of pest and beneficial insects were made with Density Kernel allowing the population of insects per m² found in the three samplings to be estimated. The percentages vary by phenological stage, but five pest insects predominate: Hydrellia sp, Tagosodes oryzicolus Müir, Rupella albinella, Oebalus ornatus (Adult), Tibraca limbativentris (Adult - Nymph), the GIS allow a spatial distribution of the pest insects.

Diversidad de artrópodos asociados al cultivo de arroz (Oryza sativa L.), Sébaco, Nicaragua

“…Los artrópodos colectados fueron conservados en alcohol al 70 %, para su posterior identificación en laboratorio, se empleó un estereoscopio (Carl Zeiss, modelo 475002), claves taxonómicas dicotómicas (Rodríguez Flores y Jiménez Martínez, 2019), se consultó literatura especializada de insectos de interés agrícola en Nicaragua (Jiménez-Martínez, 2020). Las labores de monitoreo se realizaron a partir de los ocho días después de la germinación del cultivo de arroz (Obregón-Corredor et al, 2021;Sánchez-Alvarado et al, 2023). Las capturas se relacionaron con las etapas fenológicas del cultivo.…”