Manejo integrado de Sigatoka na Martinica e em Guadalupe

De Lapeyre de Bellaire Luc. 2023. Manejo integrado de Sigatoka na Martinica e em Guadalupe. . Associação Central dos Fruticultores do Norte de Minas. s.l. : s.n., Résumé, 1 p. Workshop sobre Fitossanidade na Cultura da bananeira BananaFIT. 4, Janaúba, Brésil, 27 Mars 2023/30 Mars 2023.

Matériel d'accompagnement : 1 diaporama (39 vues)

Note générale : A l'occasion de ce congrès, s'est également déroulé le IV Abanorte Fruit Connections, du 27 au 30 mars 2023, Janaúba, Brésil

Résumé : BLSD (due to Pseudocercospora fijiensis) is the main challenge in the banana industry since the control of this fungal disease is crucial for banana exportation. In Guadeloupe and Martinique, a forecasting strategy has been implemented since the beginning of the 70's in order to control Sigatoka Disease (due to Pseudocercospora musicola) with a limited number of treatments. Sigatoka control was operated by a small technical team from decision to execution of aerial applications. This strategy performed very well for more than 40 years (5-7/years in the period without fungicide resistance) even if fungicide resistance and regulatory limitations altered its performance. In 2010-2012 Pseudocercospora fijiensis arrived respectively in Martinique and Guadeloupe and totally replaced P. musicola, making Sigatoka control more difficult. At the same time, aerial fumigation was totally prohibited in 2013 and terrestrial alternatives (supra or sub foliar) were implemented. However, terrestrial fumigation is slower, less efficient and rather difficult to implement in small farms. Recent research conducted in Dominican Republic and Martinique has shown that control strategies without any chemical control based on good agronomic practices and weekly elimination of necrotic parts on banana plants (even after flowering), resulted in poor yield and greenlife reduction. Furthermore, the low reduction of greenlife was compatible with fruit exportation. Those results highlight that, under continuous deleafing of necrotic stages and proper harvest stage practices, it is possible to export fruits even if the number of leaves at harvest is below 5, which is the general requirement of many exporters. Indeed, in Guadeloupe and Martinique, in the past decade, chemical control has decreased, growers have implemented deleafing practices and in many cases bunches are harvested on banana trees having less than 5 leaves. Such results might potentially benefit to Brazilian farmers.

Auteurs et affiliations

• De Lapeyre de Bellaire Luc, CIRAD-PERSYST-UPR GECO (FRA) ORCID: 0000-0003-1243-0887

Source : Cirad-Agritrop (https://agritrop.cirad.fr/611798/)

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