Browsing by Author "Saldarriaga Acosta, Daniela"
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Item Uso de Trichoderma harzianum como agente biocontrolador del hongo Hemileia vastatrix en cultivo de café de la finca Inmaculada, Pichinde, Cali, Colombia(Universidad Santiago de Cali, 2025-12-10) Saldarriaga Acosta, Daniela; Coque Rosero, ValentinaThe study evaluated the use of Trichoderma harzianum as a biocontrol agent against Hemileia vastatrix in Coffea arabica var. Laurina under field conditions at Inmaculada Coffee Farm (Pichindé, Cali). The objective was to determine the effect of different biocontrol concentrations on coffee leaf rust severity. A completely randomized design was used with four treatments (10⁹, 10⁷, 10⁵ CFU/mL and control) and three monitoring periods over three months. Data were analyzed using the Kruskal–Wallis test. Results showed no significant differences between concentrations or monitoring periods, but significant variability among individual trees was observed, likely due to genetic and microenvironmental factors. It was concluded that T. harzianum efficacy was not dose-dependent, confirming its potential as a sustainable alternative for coffee rust management and its relevance within agricultural microbiology.