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Control of black leaf streak disease without mancozeb in commercial plantations of Ivory Coast

De Lapeyre de Bellaire L., Wyvekens A., Asara S., Ouattara M., Pugeaux P., Carlier J., Pagès C., Normand A.. 2024. Acorbat Revista de Tecnología y Ciencia, 1 (1) : p. 232-242. Reunión Internacional Acorbat 2024. 24, 2024-04-23/2024-04-25, Mérida (Mexique).

DOI: 10.62498/ARTC.2430

BLSD is the main challenge in the banana industry since the control of this fungal disease is crucial for banana exportation. In most countries, BLSD control relies on weekly applications of contact fungicides as mancozeb. Regulatory limitations of dithiocarbamates in the EU might soon block the use of this fungicide. Here we have evaluated new strategies excluding mancozeb in humid areas of Ivory Coast where fungicide resistance to most systemic fungicides is established. This strategy relies on weekly observations of biological disease parameters to inform decisions and on a wider use of mineral oil and fungicides from the SBI group 2. This strategy is better in terms of environmental performance and as performant for disease control as the conventional strategy based on mancozeb.

Mots-clés : maladie des raies noires; contrôle de maladies; fongicide; maladie des plantes; maladie fongique; musa; mancozèbe; pseudocercospora; résistance aux maladies; mycosphaerella fijiensis; résistance aux fongicides; côte d'ivoire; pseudocercospora fijiensis

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