Fall armyworm; farmer's perception; maize; pest management; pesticide
Résumé :
[en] The fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is currently an important pest of maize crops worldwide not only because of its dispersal ability but also because of its polyphagous feeding behaviour. Lack of sufficient information on the management of the fall armyworm attacks remains a crucial problem for maize smallholder farmers in Africa. In this study, 420 farmers were surveyed in central and west Africa using individual interviews to assess farmers' knowledges and perceptions of the fall armyworm damages and the management practices used. Most farmers (99.4%) were shown to recognize the fall armyworm and 92.5% claimed to already have damages in their fields. The fall armyworm seems not to be a new pest as most farmers identified it in different countries from 2015 to 2019. Apart from maize as the preferred crop of S. frugiperda, several alternative host plants including Napier grass, sorghum, onion, and cabbage were identified by the farmers. Although cultural and mechanical control methods are used by several farmers, the synthetic pesticide market is still preferred by almost half of the farmers (44.28%) who still use them. To control fall armyworm, 96.4% in Burkina Faso, 85.3% in Gabon, 65.2% in Benin and 25% in DR Congo reported using insecticides, against 5.9% in Senegal. Semiochemical‐based method and biological control by promoting natural enemies of the fall armyworm are new concepts for farmers in DR Congo, Gabon and Benin. To avoid additional problems regarding health and resilience of agricultural systems, alternative methods such as push–pull approach, the development of biopesticides and resistant cultivars should form the basis of training given to farmers and should be popularized for sustainable control of the fall armyworm in central and west Africa.
Disciplines :
Entomologie & lutte antiravageur
Auteur, co-auteur :
Cokola Cuma, Marcellin ; Université de Liège - ULiège > TERRA Research Centre ; Department of Crop Sciences, Faculty of Agriculture and Environmental Sciences Université Evangélique en Afrique Bukavu Democratic Republic of the Congo
Van Den Bussche, Raphaël; Functional and Evolutionary Entomology, Gembloux Agro‐Bio Tech Liege University Gembloux Belgium
Noël, Grégoire ; Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Kouanda, Nongamanégré; Functional and Applied Entomology Laboratory, UFR SVT University Joseph Ki‐Zerbo Ouagadougou Burkina Faso
Sèye, Fawrou; Laboratory of Reproductive Biology, UFR2S Gaston Berger University Saint‐Louis Senegal
Yarou, Boni B.; World Vegetable Center – West and Central Africa (WCA) – Coastal & Humid Region IITA‐Benin Campus Cotonou Benin
Caparros Megido, Rudy ; Université de Liège - ULiège > TERRA Research Centre > Gestion durable des bio-agresseurs
Bayendi Loudit, Sandrine M.; Institut de Recherches Agronomiques et Forestières Libreville Gabon
Lonpi Tipi, Ernestine; Ecole Régionale post‐universitaire d'aménagement et de gestion intégrés des Forêts et Territoires tropicaux (ERAIFT) Kinshasa Democratic Republic of the Congo
Michel, Baudouin ; Université de Liège - ULiège > TERRA Research Centre > Modélisation et développement ; Ecole Régionale post‐universitaire d'aménagement et de gestion intégrés des Forêts et Territoires tropicaux (ERAIFT) Kinshasa Democratic Republic of the Congo
Francis, Frédéric ; Université de Liège - ULiège > TERRA Research Centre > Gestion durable des bio-agresseurs
Langue du document :
Anglais
Titre :
Managing fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae): Experience from smallholder farmers in central and western Africa
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