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Synth?se r?gionale des probl?mes phytosanitaires de la culture de la tomate ? la Martinique (Antilles fran?aises)
- Source :
- Agronomy for Sustainable Development; 1991, Vol. 11 Issue: 3 p175-184, 10p
- Publication Year :
- 1991
-
Abstract
- Une enqu?te pluridisciplinaire (mycologie, bact?riologie, n?matologie, virologie et entomologie) sur les contraintes parasitaires de la culture de la tomate a ?t? r?alis?e ? la Martinique. Les r?sultats ont ?t? ?tudi?s par rapport ? la situation g?ographique de la parcelle sur l'?le, au moyen d'une analyse factorielle discriminante apr?s transformation des effectifs en classes d'abondance. Les facteurs 1 et 2 permettent de r?partir les champs en 3 sous-ensembles : Nord Cara?be, Nord Atlantique et un regroupant Centre et Sud. Ce sont les variables ?Mines?, ?Septoria?, ?Erwinia?, ?Criconemella? (facteur 1 ) et ?Acariens? ou ?Xiphinema? (facteur 2) qui expliquent la position de ces nuages. Le facteur 3 permet de diff?rencier les zones Centre et Sud, notamment ? partir de la variable ?Phoma?. Le profil parasitaire de chaque r?gion a ?t? ?tabli. Les liaisons significatives entre les variables se r?partissent autour d'un trin?me constitu? par le n?matode Xiphinema, la bact?rie Xanthomonas et le sympt?me ?tache?. Des m?thodes de lutte phytosanitaire raisonn?es au moyen d'itin?raires techniques adapt?s, pourraient ?tre d?velopp?es pour chacune de ces zones, en s'appuyant sur les relations particuli?res qui apparaissent entre les diff?rents agents pathog?nes. Regional synthesis of tomato diseases in Martinique (French West Indies). A pluridisciplinary survey (mycology, bacteriology, nematology, virology and entomology) of tomato diseases was conducted in Martinique. Results were described in respect to the geographical localization of the field on the island (table I) with a factorial discriminant analysis after data transformation in abundance classes (table II). Factors 1 and 2 permitted classification of the fields into 3 areas: North Carribean, North Atlantic and one for the Center and the South (fig 1). The variables "Mines", "Septoria", "Erwinia", "Criconemella" (Factor 1 and "Acarians" or "Xiphinema" (Factor 2) explain the position of the areas (table III). Factor 3 allows separation of the Center from the South area, mainly according to the "Phoma" variable (table III, fig 2). Pest and parasite complexes in each area have been described (fig 3). The relationships among variables are distributed around a triangular pattern consisting of the nematode Xiphinema, the bacteria Xanthomonas and the "spot" symptom (fig 4). Technical advice for integrated control methods should be developed for each area, using the particular relationships that exist among the different pathogens.
Details
- Language :
- English
- ISSN :
- 17740746 and 17730155
- Volume :
- 11
- Issue :
- 3
- Database :
- Supplemental Index
- Journal :
- Agronomy for Sustainable Development
- Publication Type :
- Periodical
- Accession number :
- ejs25081104
- Full Text :
- https://doi.org/10.1051/agro:19910304