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Plant-parasitic nematodes: problems and decision-making tools



Plant-parasitic nematodes are obligatory parasites that can attack all plant parts, both aerial and underground. Of the more than 15 genera that can affect horticultural crops, the species of the genus Meloidogyne cause the greatest crop losses worldwide, in particular M. incognita, M. javanica and M. arenaria due to their wide distribution, the large number of plants they can feed on, and their parthenogenetic reproduction. The problem has been compounded by the intensification of crops grown under cover with few plant species that are susceptible to the nematode, and by environmental conditions that favour its development. The maximum crop losses attributed to this genus are 65% in tomato and lettuce, 88% in cucumber, 39% in courgette, and 37% in watermelon. The damage caused depends on nematode density immediately prior to transplanting, the status of the plant, and the number of generations completed during cultivation. As plant-parasitic nematodes are poikilotherms, their generation time depends on the accumulated soil temperature during cultivation, as well as on survival in the absence of a host plant. Models of nematode population dynamics and their effect on production provide tools to guide decision-making and to design management strategies. The presentation will describe such models and their use. 

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In accordance with the Organic Law on the Protection of Personal Data 15/1999, of 13 December, Promotora de Exportaciones Catalanas SA (hereinafter PRODECA), whose address is Gran Via de les Corts Catalanes, 620, principal, 08007 Barcelona, with tax reg. no. NIF A58241316, declares that the images contained on the website www.smartfruitcongress.cat are included in a file belonging to PRODECA. The purpose of this file is the promotion, via its website, of the activities conducted by PRODECA – SmartfFruit IPM International Congress.

PRODECA guarantees that you may, at any time, exercise your right to access, rectify, cancel or oppose by writing to the aforesaid postal address, using the reference "PROTECCIÓN DE DATOS - SMARTFRUIT", or to the email address smartfruitcongress@smartfruitcongress.cat.

Specifically, to correctly exercise these rights you must clearly provide the following items in that communication:
- Name, surname(s) and photocopy of National Identity Document or Passport.
- Statement of the purpose of the request.
- Address for notification purposes.
PRODECA also declares that it reserves the right to delete from its website any content that it considers violates current and applicable legislation.

D’acord amb l’article 17.1 de la Llei 19/2014, la ©Generalitat de Catalunya permet la reutilització dels continguts i de les dades sempre que se'n citi la font i la data d'actualització i que no es desnaturalitzi la informació (article 8 de la Llei 37/2007) i també que no es contradigui amb una llicència específica.