Effect of environment and fallow period on Cosmopolites sordidus population dynamics at the landscape scale

Duyck Pierre François, Dortel Emmanuelle, Vinatier Fabrice, Gaujoux E., Carval Dominique, Tixier Philippe. 2012. Effect of environment and fallow period on Cosmopolites sordidus population dynamics at the landscape scale. Bulletin of Entomological Research, 102 (5) : 583-588.

Quartile : Q1, Sujet : ENTOMOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Understanding how the population dynamics of insect pests are affected by environmental factors and agricultural practices is important for pest management. To investigate how the abundance of the banana weevil, Cosmopolites sordidus (Coleoptera: Curculionidae), is related to environmental factors and the length of the fallow period in Martinique, we developed an extensive data set (18,130 observations of weevil abundance obtained with pheromone traps plus associated environmental data) and analysed it with generalized mixed-effects models. At the island scale, C. sordidus abundance was positively related to mean temperature and negatively related to mean rainfall but was not related to soil type. The number of insects trapped was highest during the driest months of the year. Abundance of C. sordidus decreased as the duration of the preceding fallow period increased. The latter finding is inconsistent with the view that fallow-generated decomposing banana tissue is an important resource for larvae that leads to an increase in the pest population. The results are consistent with the view that fallows, in association with pheromone traps, are effective for the control of the banana weevil.

Mots-clés Agrovoc : Cosmopolites sordidus, dynamique des populations, Musa, facteur du milieu, facteur climatique, sécheresse, précipitation, température, jachère, pratique culturale, paysage, gestion intégrée des ravageurs, lutte intégrée, piégeage des animaux, phéromone sexuelle

Mots-clés géographiques Agrovoc : Martinique, France

Classification Agris : H10 - Ravageurs des plantes
P40 - Météorologie et climatologie
F08 - Systèmes et modes de culture

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Duyck Pierre François, CIRAD-PERSYST-UPR Systèmes de culture bananes et ananas (MTQ) ORCID: 0000-0001-5484-1970
• Dortel Emmanuelle
• Vinatier Fabrice
• Gaujoux E., APEX (FRA)
• Carval Dominique, CIRAD-PERSYST-UPR Systèmes de culture bananes et ananas (MTQ)
• Tixier Philippe, CIRAD-PERSYST-UPR Systèmes de culture bananes et ananas (MTQ) ORCID: 0000-0001-5147-9777

Source : Cirad - Agritrop (https://agritrop.cirad.fr/570538/)

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