Contribution à la Gestion des Cercosporioses du bananier dues à &lt;i&gt;Mycosphaerella&lt;/i&gt; spp. par l’utilisation du Fluopyram associé à l’huile minérale en Côte d’Ivoire

Black leaf streak disease (BLSD) is the major constraint on banana production around the world. In Côte d'Ivoire, this disease is found in all banana-growing areas and its management involves the use of large volumes of agrochemicals. This mode of production is increasingly denounced by consumers from regarding fruit contamination by phytopharmaceuticals. The objective of this study is to promote the use of NECO 50 EC, a plant extract-based biofungicide in an integrated black Sigatoka management system. The fungitoxic effect of NECO 50 EC was assessed in vitro on Mycosphaerella fijiensis conidia germination and the evolution of black leaf streak disease symptoms under natural infestation. NECO 50 EC was applied over a surface area of 25 ha at a rate of 0.3 l/ha. Its weekly effect on the evolution of the rank of the youngest leaf affected (YLA), the rank of the youngest necrotic leaf (YLN), the number of functional leaves at flowering (NFLF) and the number of functional leaves at harvest (NFLH) was determined and then compared to those of a morpholine (Volley 88 OL) applied over a surface area of 25 ha at a dose of 0.5 l/ha. NECO 50 EC showed an anti-germinating effect on Mycosphaerella fijiensis conidia at low doses, useful in reducing disease spreading. Its application in banana tree plantations reduced disease pressure on the plots. It ensured the protection of new leaves generated (YLA > 4), favored ranks of YLN greater than 9. More than 14 leaves were counted at flowering and more than 7 leaves at harvest were observed. NECO 50 EC, a plant extract-based biological fungicide, may be an effective alternative for black leaf streak disease control in industrial banana tree plantations.

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Fungitoxic Potentialities of NECO 50 EC in an Integrated Black Sigatoka Management Strategy in Industrial Dessert Banana Plantation

Kassi

N’Guessan

Seydou

et al. 2021

EJBIO

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Contribution à la Gestion des Cercosporioses du bananier dues à <i>Mycosphaerella</i> spp. par l’utilisation du Fluopyram associé à l’huile minérale en Côte d’Ivoire

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Fungitoxic Potentialities of NECO 50 EC in an Integrated Black Sigatoka Management Strategy in Industrial Dessert Banana Plantation

Fungitoxic Potentialities of NECO 50 EC in an Integrated Black Sigatoka Management Strategy in Industrial Dessert Banana Plantation

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