Use of a decision support system for the management of late blight Phythopthora infestans (Mont.) de Bary, in potato (Solanum tuberosum L.) crop

• Autores: Wilches-Ortiz, Wilmar, Vargas-Díaz, Ruy, Espitia-Malagón, Eduardo, Franco-Florez, Clara
• Formato: artículo
• Fecha de Publicación: 2023
• Institución: Universidad Nacional Intercultural Fabiola Salazar Leguía de Bagua
• Repositorio: Revistas - Universidad Nacional Intercultural Fabiola Salazar Leguía de Bagua
• Lenguaje: español
• OAI Identifier: oai:revista.unibagua.edu.pe:article/201
• Enlace del recurso: https://revista.unibagua.edu.pe/index.php/dekamuagropec/article/view/201
• Nivel de acceso: acceso abierto
• Materia: Diacol Capiro, Ica Única, Manejo integrado de cultivo, Suprema.; Diacol Capiro, Ica Única, Integrated Crop Management, Suprema

The management of late blight (Phytophthora infestans) in the potato crop is a constraint for growers in Colombia, and it is important to seek alternatives for its control. Therefore, the objective of this study was to evaluate a decision support system (DSS) for the management of the disease in three potato varieties. For this purpose, an experiment was established in the municipality of Mosquera, Cundinamarca (Colombia), with three treatments (DSS management [T1], positive control [T2] and negative control [T3]) in a crop cycle with three cultivars (cv Diacol Capiro, cv Ica Única and cv Suprema). Yield variables, late blight severity, area under the disease progress curve (AUDPC) and its relative area (rAUDPC) were measured. The use of DSS (T1) resulted in yields comparable to those obtained with strictly chemical management (T2). There were statistically significant differences (p < 0.05) in the reduction of disease development with the use of the support tool (T1) in the varieties evaluated with respect to the controls. The implementation of the DSS is a useful tool for the integrated management of potato late blight and has potential for transfer to other staple crops.