Articles
A BAIT AND TRAP METHOD FOR SAMPLING SYMPHYLID POPULATIONS IN PINEAPPLE
Article number
902_40
Pages
357 – 362
Language
English
Abstract
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.
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.
Publication
Authors
P.A. Marie-Alphonsine, P. Fournier, B. Dole, J.C. Govindin, P. Quénéhervé, A. Soler
Keywords
symphylids, spatial distribution, trap, pineapple
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