Análisis y comparación de una nueva formulación de polvo humectable como insecticida contra el gorgojo de arroz, Sitophilus Oryzae (L.) (Coleoptera: Curculionidae) desarrollado en el Molino Diana Corporación S.A.S.

Abstract

There are great differences in the way to combat the development of pests in stored food, the most frequent method is the use of insecticides and pesticides that, in spite of their effectiveness, have great repercussions on the environment and human health. In this degree project entitled "Analysis and comparison of a new formulation of wettable powder as an insecticide against the rice weevil, sitophilus oryzae (l.) (coleoptera: curculionidae) developed in the Diana Mill Corporation S.A.S." consists of determining the toxicity period of new formulations of wettable powder that resembles the efficiency of eco-Eff and that can be applied in the control of dry paddy rice stored in the Diana Mill. The formulations previously selected through a bibliographic review were applied on fresh plastics, which will be the bioassays to be studied, and the mortality of non-sexualized S. Oryzae adults was observed at time intervals of 24, 48, 72, 168 and 360 hours. Five treatments were tested containing F1.0(SiO2-NaHCO₃), F2.0(Al₂O₃-NaHCO3), F3.0(Fe2O3- NaHCO₃), F4.0(Borax-NaHCO3), F5.0(Eco-Eff) and the control formulation F6.0, which does not include any formulation. Each treatment consisted of 10 weevils, 50 g of dry paddy and two replicates for each formulation. the evaluation was completed after 15 days after obtaining significant differences in each treatment due to the toxicity of each formulation.