RT Journal Article T1 Environmentally friendly treatment alternatives to Bordeaux mixture for controlling bacterial apical necrosis (BAN) of mango. A1 Gutiérrez Barranquero, José Antonio A1 Arrebola-Díez, Eva María A1 Bonilla, Nuria A1 Sarmiento, David A1 Cazorla-López, Francisco Manuel A1 De-Vicente-Moreno, Antonio K1 Bacterias fitopatógenas K1 Mangos - Enfermedades y plagas K1 Agentes de control biológico de plagas AB Bacterial apical necrosis (BAN), caused by the bacterium Pseudomonas syringae pv. syringae (Pss), is currently the mostlimiting disease affecting the mango crop in the Mediterranean area. The copper-based compound Bordeaux mixture (BM)is considered to be the conventional treatment against BAN, but it does not act as a bactericide. Alternative experimentaltreatments to BM that are compatible with organic farming were tested for their ability to control BAN disease. Field trialswere conducted over six seasons in different mango orchards with natural infestation of Pss. The experimental treatmentsincluded applications of Silicon gel (a commercial formulation of aqueous potassium silicate), dicalcium phosphate,Kaolinite, and Ulmasud B (bentonite, powder); BMwas applied as the conventional treatment. During the first two seasons(small-scale trial, 2002–2004), all these experimental compounds were applied in order to select those treatments providingthe greatest reduction of BAN symptoms. In the next three seasons (2005–2008), a semi-commercial scale trial was carriedout with the best-performing treatments, resulting in the selection of Silicon gel. Finally, Silicon gel was tested in a commercialscale trial during the last season (2008–2009). Trees treated with Silicon gel showed significantly fewer necrotic budsand leaves, reaching disease levels very similar to those using the conventional treatment with BM. However, minordifferences in P. syringae-like population levels were observed, as has been described in previous studies. The possible modeof action of the Silicon gel is discussed. Currently, the Silicon gel compound is undergoing the registration process for itscommercial use in mango management in Spain. PB British Society for Plant Pathology YR 2011 FD 2011-11-22 LK https://hdl.handle.net/10630/31182 UL https://hdl.handle.net/10630/31182 LA eng NO Gutierrez-Barranquero JA, Arrebola E, Bonilla N, Sarmieto D, Cazorla FM, de Vicente A. 2012. Environmentally friendly treatment alternatives to Bordeaux mixture for controlling bacterial apical necrosis (BAN) of mango. Plant Pathology 61:665-676 NO Política de acceso abierto tomada de: https://v2.sherpa.ac.uk/id/publication/6941 NO This work has been supported by grants fromCICE-Junta de Andalucía, Ayudas Grupo PAIDI AGR-169, and Proyecto de Excelencia (P07-AGR-02471), co-financed by FEDER (EU). DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026