Entomofauna diversity associated with rice (Oryza sativa L.) monoculture systems in the Sébaco Valley, Nicaragua

Abstract

Rice (Oryza sativa L.) production is influenced by climatic, social, and biological factors that determine its profitability. The objective of this research was to identify the entomofauna populations associated with rice monocultures during the rainy season in the municipality of Sébaco, Matagalpa, north central region of Nicaragua in 2023. Monitoring was carried out in five production systems, with the same agronomic and phytosanitary management, selecting ten points at random, using 20 double passes of an entomological net, in a zig-zag shape. The captures were identified by order, family, genus, by production system and stage of crop development; descriptive and inferential statistics and diversity indices were used (Shannon Weaver and Simpson) were used. 15 families and 19 genders were highlighted; The most abundant species was Tagosodes orizicolus (n=1,846) in the maturation phase, followed by Hydrellia sp. (n=1,823) in the vegetative growth phase, where the largest populations are recorded. Diversity indices were low at all stages of crop development and production systems.