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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Efecto de aceite mineral y vegetal en control del pulgón del nogal (Chromaphis juglandicola Kaltenbach) en el nogal / Effect of mineral and vegetable oil in control of walnut aphid (Chromaphis juglandicola Kaltenbach) in walnut

Caroca Saavedra, Romina Paz January 2015 (has links)
Memoria para optar al Título Profesional de Ingeniera Agrónoma / En la temporada 2015 se estudió el efecto del aceite mineral (ELF PURESPRAY 15E) y extracto de linaza (BIOIL SPRAY) a concentraciones de 0,5; 1,0 y 1,5% sobre la sobrevivencia del pulgón del nogal (Chromaphis juglandicola) en nogales (Juglans regia) ubicados en la zona central de Chile. El ensayo consistió en la inmersión de hojas con un número mayor o igual a 200 individuos en el envés, durante 5 segundos en cada una de las concentraciones. El estudio se realizó en un huerto comercial de nogales cv. Chandler, ubicado en Requinoa, Región del Libertador General Bernardo O´Higgins, Chile. Las evaluaciones se efectuaron midiendo el porcentaje de sobrevivencia de los individuos a los 4 y 7 días después de la inmersión (DDI). Se concluyó que las aplicaciones de aceite mineral y extracto de linaza a concentraciones ≥0,5; ≤1,5% controlan efectivamente al áfido en hojas de nogal. / During the 2015 growing season, was studied the effect of mineral oil (ELF PURESPRAY 15E) and flaxseed extract (BIOIL SPRAY) at concentrations of 0.5, 1.0 and 1.5% on the control of walnut aphid (Chromaphis juglandicola) on walnut (Juglans regia) located in the central zone of Chile. The test consisted in dipping leaves with 200 or more individuals in the underside, into each concentration for 5 seconds. The study was conducted at a commercial orchard of "Chandler" walnut, located in Requinoa, Libertador General Bernardo O´Higgins Region, Chile. The evaluations were made by measuring the percentage of survival of individuals at 4 and 7 days after dipping (DAD). Conclusion was that mineral oil (ELF PURESPRAY 15E) and vegetable oil (BIOIL SPRAY) at concentrations of ≥0.5, ≤1.5% effectively control to the aphid in walnut leaves.

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