A bait and trap method for sampling symphylid populations in pineapple

Marie Alphonsine Paul-Alex, Fournier Patrick, Dole Bernard, Govindin Jean-Claude, Soler Alain. 2010. A bait and trap method for sampling symphylid populations in pineapple. Pineapple News (17) : pp. 18-22. International Pineapple Symposium. 7, Johor Bahru, Malaisie, 13 July 2010/15 July 2010.

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Abstract : Symphylids (Hanseniella sp) are polyphagous soil-borne parasites. On pineapple, they feed on roots tips (meristem tissues) producing either short roots with irregular swelling or roots with multiple branching resulting in the typical " witches brooms ", (Kéhé, 1988; Py et al.1984; Petty et al., 2002). This behavior alters the root efficiency. The reddish plants look wilted with poor anchorage and growth. At field level, the crop appears as an irregular patchwork of diseased and normal plants, similar in appearance to nematode-induced symptoms (Py et al.1984; Kéhé, 1995; Soler, 1998; Perrier et al., 1993). Actually, diagnosing this disease in pineapple fields is rendered difficult due to possible confusion with other problems as water or nutrient deficiencies, nematodes, wilt (Kéhé, 1988; Py et al.1984). As a consequence of the reduction in the use of pesticides due to environmental concerns, the control of symphylid populations in pineapple now requires particular and novel attention by researchers looking for an alternative to the chemical control of symphylid populations. Symphylids can be trapped and counted using appropriate bait or soil samples (Umble and Fischer, 2003a and Umble et al., 2006). We developed a reliable method to monitor symphylids in pineapple that combines bait and soil sample. (Résumé d'auteur)

Mots-clés Agrovoc : Ananas comosus, Mucuna pruriens, Symphyla

Mots-clés géographiques Agrovoc : Réunion

Mots-clés complémentaires : Hanseniella

Classification Agris : H10 - Pests of plants
H20 - Plant diseases

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

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)
  • Soler Alain, CIRAD-PERSYST-UPR Systèmes bananes et ananas (MTQ)

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