Effect of fallows on population dynamics of Cosmopolites sordidus: Toward integrated management of banana fields with pheromone mass trapping

Rhino Béatrice, Dorel Marc, Tixier Philippe, Risède Jean-Michel. 2010. Effect of fallows on population dynamics of Cosmopolites sordidus: Toward integrated management of banana fields with pheromone mass trapping. Agricultural and Forest Entomology, 12 (2) : 195-202.

Quartile : Q2, Sujet : ENTOMOLOGY

Résumé : 1 The banana weevil Cosmopolites sordidus Germar (Coleoptera: Curculionidae) is the most serious pest of banana and plantain in most production areas, including the West Indies. 2 During a period of 2 years, we assessed the efficacy of a pheromone masstrapping control strategy of C. sordidus in field conditions in Guadeloupe at different cropping stages, both in sanitation fallows and in different ratoon banana crops. 3 In the fallows, catches peaked 3 months after beginning trapping and then decreased to zero after 9 months. By contrast, for the new plantations, the catches of C. sordidus increased after the 11th month and, in the older banana fields, there was no decrease in C. sordidus catches. The C. sordidus catches increased in the neighbouring banana plots, whereas they decreased in the fallows, and these catches decreased with the distance from fallow. 4 In conclusion, mass trapping with synergized pheromone traps within fallows should allow better sanitation of banana plantations. Yet, within the farms, fallows must not be located next to new plantations to avoid massive damage to the young plants. More generally, the present study emphasizes that the control of this insect should be managed at the farm scale and not at the field scale, with special attention being paid to the location of fallows.

Mots-clés Agrovoc : Musa, Cosmopolites sordidus, piégeage des animaux, phéromone, gestion intégrée des ravageurs, lutte intégrée, jachère, dynamique des populations

Mots-clés géographiques Agrovoc : Guadeloupe, France

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

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

Auteurs et affiliations

• Rhino Béatrice, CIRAD-PERSYST-UPR HortSys (MTQ) ORCID: 0000-0002-6119-430X
• Dorel Marc, CIRAD-PERSYST-UPR Systèmes bananes et ananas (GLP)
• Tixier Philippe, CIRAD-PERSYST-UPR Systèmes bananes et ananas (MTQ) ORCID: 0000-0001-5147-9777
• Risède Jean-Michel, CIRAD-PERSYST-UPR Systèmes bananes et ananas (ZAF)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/554473/)

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