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• W2943092016 abstract "The leafminer Eteoryctis gemoniella is a pest that causes damage to the cashew tree. This study accessed the damage of Eteoryctis gemoniella in the propitious areas for cashew tree in Benin. Data were collected between December and April during the agricultural campaign 2015-2016 and 2016- 2017 within 21 cashew plantations. Three age classes were considered to select the plantations sampled. The percent of cashew’s leave infested by E. gemoniella was counted in each 1 m² plots. The results showed that in 2017 the average number of plants infested was significant (6.73, p<0.05) in contrary to 2016 year (4.73). The number of leaves infested by E. gemoniella varies significantly (P <0.001) from an agro-ecological zone to another and from an age class to another. The cashew trees in agro-ecological zone 5 were most infested by E. gemoniella. 20% of plants were infested in this agroecological zone in contrary to the agro-ecological zone 3 with 16% plants infested. The majority of farmers surveyed (92.67%) perceived that the damage from E. gemoniella is low. Despite that the damage caused by E. gemoniella is low, it is important to warn the actors of the sector so that preventive measures are taken to avoid, in the future, thresholds of nuisance economically disastrous. La mineuse de feuille Eteoryctis gemoniella est l’un des ravageurs qui cree des dommages a l’anacardier. L’objectif de la presente etude est d’evaluer les degâts de Eteoryctis gemoniella dans les zones favorables de l’anacardier au Benin. Les donnees ont ete collectees de Decembre a Avril au cours des campagnes 2015-2016 et 2016-2017 dans 21 plantations d’anacardier. Trois classes d’âge ont ete prises en compte dans le choix des plantations. Dans les quadrants de 1 m², le pourcentage de feuilles infestees par E. gemoniella a ete determine par comptage et rapporte au nombre total de feuilles dans les quadrants. Les resultats ont montre que l’annee 2017 a significativement (P < 0,05) connu un nombre plus important de plants attaques (6,73 en moyenne) par E. gemoniella comparativement a l’annee 2016 (4,73 en moyenne). Le nombre de feuilles attaquees par E. gemoniella varie tressignificativement (P<0,001) d’une zone agro-ecologique a une autre et d’une classe d’âge a une autre. La zone agro-ecologique 5 a ete la plus attaquee par E. gemoniella. soit 20% d’attaque comparativement a la zone agro-ecologique 3 qui a ete la moins attaquee (16%). La majorite des producteurs enquetes (92,67%) a percu que les degâts de l’insecte sont tres faibles. Malgre que les degâts soient faibles, il faut attirer l’attention des acteurs de la filiere afin que des mesures preventives soient prises pour eviter a l’avenir, des seuils de nuisance economiquement desastreux." @default.
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• W2943092016 date "2019-04-30" @default.
• W2943092016 modified "2023-09-26" @default.
• W2943092016 title "Evaluation des Dégâts de Eteoryctis gemoniella (Lepidoptera: Gracillariidae) dans les Plantations d’anacardier au Bénin" @default.
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• W2943092016 doi "https://doi.org/10.19044/esj.2019.v15n12p286" @default.
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