Browsing by Author "Tapia Tarco, Aracelly Fernanda"

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    “Evaluación de tres concentraciones de extracto de Phytolacca bogotensis como controlador de Drosophila Immigrans en el laboratorio de la Universidad Técnica de Cotopaxi, Latacunga 2024”
    (Ecuador : Latacunga : Universidad Técnica de Cotopaxi (UTC), 2024-08) Tapia Tarco, Aracelly Fernanda; Cuadrado Barreto, Geraldo Ariolfo
    The project entitled 'Evaluation of three concentrations of Phytolacca bogotensis extract as a controller of Drosophila immigrans in the laboratory of the Technical University of Cotopaxi, Latacunga 2024' aims to evaluate the efficacy of Phytolacca bogotensis extract as a natural insecticide, in response to the growing problem of the excessive use of chemical pesticides in agriculture. This intensive use generates negative impacts on human health and the environment, which is especially critical in Latin America. The study began with obtaining permission from the Ministry of Environment to collect samples of Phytolacca bogotensis, which were identified and cataloged in the herbarium of the Technical University of Cotopaxi. Detailed botanical identification revealed the distinctive characteristics of the plant, including differences in leaves, flowers, stems, and fruits compared to other species of the genus Phytolacca. Qualitative phytochemical analysis of the extract showed the presence of active compounds such as saponins, terpenes, phenols, and flavonoids and the absence of alkaloids, charcons, quinones, fats, and oils. In the experimental phase, different concentrations of the extract were applied to Drosophila immigrans under controlled laboratory conditions. Tukey's 5% test showed that the T3 treatment (6cc) was the most effective, achieving 45% mortality at 24 hours and 55% at 48 hours. However, the efficacy of the treatment decreased at 72 hours, possibly due to biological or environmental factors affecting the activity of the extract. The results obtained not only validate the potential of Phytolacca bogotensis as an effective natural insecticide but also provide a viable and sustainable alternative to chemical pesticides, thus promoting more environmentally friendly agricultural practices and contributing to the development of safer and environmentally friendly pest control methods.