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Integrated Management of Xanthomonas arboricola pv jugandis in walnut

Concepció Moragrega Garcia

Institute of Agri-food Technology. University of Girona.

Integrated Management of Xanthomonas arboricola pvjugandis in walnut

Concepció Moragrega GarciaRead more

Integrated Management of Xanthomonas arboricola pvjugandis in walnut

Concepció Moragrega Garcia

Institute of Agri-food Technology. University of Girona.

 

Walnut blight is the main disease affecting this crop and is a factor limiting production. Infections occur from early spring, and are especially severe if the budding and flowering of the trees coincide with rain. Disease control is based on the preventive application of copper compounds to protect tree organs during the period in which they are sensitive to infections. A large number of copper applications does not guarantee proper control of the disease because the bacteria survive inside the buds and rapidly colonise the internal tissues of the tree, apart from their negative effects on the plantation ecosystem and the possible selection of copper-resistant strains of bacteria. Since bacterial infections occur only when environmental conditions are favourable, some of the copper applications may not be necessary. To rationalise and improve the control of walnut blight, a schedule of treatments has been proposed on the basis of host phenology, which significantly reduces the number of copper applications while maintaining an adequate control of the disease. Moreover, the Institute of Food Technology of the University of Girona and IRTA have worked together to develop a model to predict bacteriosis risk. This prediction model was tested over several years in walnut plantations in Tarragona, Girona and France as a decision-making support tool for disease control.

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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.
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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.