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Integrated Mite Management in Spanish citrus orchards

Josep A. Jaques Miret

Department of Agricultural and Environmental Sciences. Universitat Jaume I

Several phytophagous mite species occur in Spanish citrus orchards. The most important family is the Tetranychidae, with the two spotted spider mite Tetranychus urticae (Koch), the citrus red mite Panonychus citri (Mc Gregor), the Texas citrus mite Eutetranychus banksi (McGregor), and the oriental mite E. orientalis (Klein). Tenuipalpidae are represented by the flat mites Brevipalpus californicus (Banks) and B.

Several phytophagous mite species occur in Spanish citrus orchards. The most important family is the Tetranychidae, with the two spotted spider mite Tetranychus urticae (Koch), the citrus red mite Panonychus citri (Mc Gregor), the Texas citrus mite Eutetranychus banksi (McGregor), and the oriental mite E. orientalis (Klein). Tenuipalpidae are represented by the flat mites Brevipalpus californicus (Banks) and B. phoenicis (Geijskes), Tarsonemidae, by the broad mite Polyphagotarsonemus latus (Banks), and Eriophyidae, by Eriophyes (=Aceria) sheldoni (Ewing).

From this list, only T. urticae and E. sheldoni are considered key pests (pest density always above economic injury level, EIL) of clementine mandarins and lemons, respectively. The remaining Tetranychidae species can be considered as secondary citrus pests (pest density sometimes above EIL) and the other mites just as occasional pests (pest density usually below EIL).

The Pest Reduction Strategy, using either preventive (cover crop management, pruning) or curative (acaricides) control methods, can be used against both key and secondary pest species to reduce their densities below EIL. The Crop Susceptibility Reduction Strategy by use of tolerant rootstocks may prove useful in the future. Importantly, the Conservation Strategy by use of conservation biological control should be always implemented to prevent occasional pests from increasing their densities and changing their pest status. 

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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.