Tesis Agronomía

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    Evaluación de fungicidas para el control de oidio (Oidium sp.) en mora (Rubus glaucus Benth) utilizando el método de termonebulización en Pelileo
    (2022-09) Ati Tamayo, Juan David; Zurita Vásquez, José Hernán
    The blackberry (Rubus glaucus Benth) are currently being affected by a very harmful fungus, known as cenicille, oidio, or powdery mildew (Oidium sp). This fungus, has caused great losses to farmers, especially in the flower production, and therefor in the number of fruits, and the reduction in the photosinthetic area. Whose symptoms are reflected in growth retardation, yellowing plants with coiled shoots, especially in young leaves, in addition to dammage its quality due to a deficiency in fruit setting and filling. This research is based on the control of this pathogen with two fungicides el Topas (Penconazole 25%EC) and Novak (Metil tiofanato 50%SC) with doses of 0,5 y 1 cc/ l, using the thermo-fogging method on the control of Oidium sp. in blackberry (R. glaucus Benth) crops. Operates on a randomized complete block split plot design with a 22 + 1 factorial arrangement with three replications, adding a total of 15 experimental units. The variables evaluated are: incidence and severity of oidium sp on the leaves of production branches. Statistically, it is determined that the product with the best control is Topas (Penconazole 25% EC) at dose of 1cc/l, in this research they present lower values in incidence and severity. The thermal fogging application method is highly effective for the control of Oidium sp, it increase considerably the effectiveness and efficiency the active ingredient of the fungicide, by evenly spreading the product in micro drops that achieve greater coverage