Marie Alphonsine Paul-Alex, Fournier Patrick, Dole Bernard, Govindin Jean-Claude, Quénéhervé Patrick, Soler Alain.
2011. A bait and trap method for sampling symphylid populations in pineapple.
In : Proceedings of the Seventh international pineapple symposium, Johor Bahru, Johor, Malaysia, July 13-15, 2010. Abdullah Hassan (ed.), Bartholomew Duane P. (ed.), Latifah Mohd Nor (ed.)
Résumé : We developed a standardized method to monitor the symphylids (Hanseniella sp.) populations in pineapple using bait and traps. Two methods for symphylid extraction and enumeration were tested. Two statistical methods, the "variance/mean" ratio and a spatial analysis (Moran and Geary indices) were used to describe the type of spatial distribution of the populations. This bait and trap method allows a good evaluation of the symphylid populations. The ratio between adults and larvae may be used as an indicator of the population growth statute. Data collected on a rotation crop for pineapple, Mucuna pruriens var. utilis, showed that symphylids populations are highly aggregated following a negative binomial distribution. Finally, the method has been validated in plots of 'MD-2' pineapple to monitor the symphylids populations at different stages of development of the crop.
Classification Agris : H10 - Ravageurs des plantes
Auteurs et affiliations
- Marie Alphonsine Paul-Alex, CIRAD-PERSYST-UPR Systèmes bananes et ananas (MTQ)
- Fournier Patrick, CIRAD-PERSYST-UPR Systèmes bananes et ananas (REU)
- Dole Bernard, CIRAD-PERSYST-UPR Systèmes bananes et ananas (GLP)
- Govindin Jean-Claude, CIRAD-PERSYST-UPR Systèmes bananes et ananas (GLP)
- Quénéhervé Patrick, IRD (MTQ)
- Soler Alain, CIRAD-PERSYST-UPR Systèmes bananes et ananas (MTQ)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/561778/)
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