Modelos Matemáticos e Computacionais no Manejo Integrado de Pragas

• Autor(a) principal: Angelocci, Lucas Verdi [UNESP]
• Data de Publicação: 2013
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/124294; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2015-05-11/000829184.pdf
• topic: Pragas - Controle biologico; Inseto - Controle; Modelos matematicos; insetos; Mathematical models; Insects Identification

This work was done with the motivation to better carry out effective control of the pest Diaphorina citri, through the use of Integrated Pest Management (IPM), method employing various techniques of pest control with the intent to keep the pest population below a level that causes economic injury to the producer. Combining the use of insecticides with the natural predator of the pest, the Tamarixia radiata, were performed simulations that show how populations of the species evolve in time and space. A mathematical modeling of the population dynamics of the species was realized. From this model, we studied the equilibrium points and its stability. Then, the effect of variation of some parameters in populations were analyzed by observation of simulations or analytically. Spatial configuration was added to the problem by using the formalism of coupled map lattice, allowing the involved species to diffuse across the field. Again, a study of sensitivity to some parameters related to the movement of species was performed. At the end of the project, a wide range of parameters was studied, and predictions were made for the effect on populations of changing parameters such as control threshold, natural biological parameters of the pest and predator, initial populations, predator numbers added to the system in the application of IPM, speed of diffusion of species through the field, monitoring interval and insecticide application, among others. It is hoped that with these predictions and other studies, the orange growers may be helped in the best way to combat this pest