FEATURED INFORMATION

Challenges for IPM Methodology in Hazel

Anna Aymamí Besora

Plant Health Service. Generalitat de Catalunya

Challenges for IPM Methodology in Hazel 

Anna Aymamí Besora
Plant Health Service. Generalitat de Catalunya. Av. Catalunya 50, 3a pl | 43002 Tarragona 

The hazel is a wild shrub species characterised by its rich insect fauna in which many species of arthropods live together.

Challenges for IPM Methodology in Hazel 

Anna Aymamí Besora
Plant Health Service. Generalitat de Catalunya. Av. Catalunya 50, 3a pl | 43002 Tarragona 

The hazel is a wild shrub species characterised by its rich insect fauna in which many species of arthropods live together.

The nut weevil (Curculio nucum) is the principal pest affecting this crop and attacks the hazelnuts themselves. The development of plant health management for this particular crop reflects successive efforts made to combat this pest. Over the years, indiscriminate use of new, mostly nonselective active substances has led to the emergence of pests such as the acarine gall-mite (Phytoptus avellanae) in the 1960s; spider mites (Eotetranychus carpini, Tetranychus urticae, Tetranycopsis horridus) in the 1970s; and the wood leopard moth (Zeuzera pyrina), rose tortrix (Archips rosana, A. xylosteana) and lecanium scale (Eulecanium coryli) in the 1980s. History shows how important it is to respect and maintain balance in the system.

Technical approaches to managing the various plant health issues that have emerged were based on applying integrated pest management (IPM) principles, by fine-tuning sampling techniques, tolerance thresholds, intervention periods and various control methods for the key pests and diseases, with priority allocated to alternative techniques. All of this knowledge has helped in developing a management strategy to reduce inputs and prevent new imbalances in the system.

Today, although this crop suffers from a limited number of plant health problems, it is nonetheless important to consider the factors that can influence the present and future of IPM. Firstly, hazelnuts are considered to be a minor crop, therefore it is harder to keep an up-to-date basic list of registered active substances and alternative techniques. Secondly, the sector suffers from cyclical weaknesses and is affected by continual economic crises.

The main IPM challenges posed in this crop today are:

-Promoting correct fertilization practices;
-Improving sampling methods and treatment thresholds;
-Continuing to develop alternatives to control, with priority given to the nut weevil;
-Keeping an eye out for the appearance of new pests with a significant economic effect, such as bacterial blight (Xanthomonas arboricola pv.corylina) or Anoplophora chinensis
-Promoting the Agricultural Alert Stations set up by the Plant Health Service and plant defence groups so that they can reach all producers and fostering efforts to work together to combat pest

Featured highlights

Legal notice

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 to promote the activities conducted by PRODECA – SmartFruit IPM International Congress via its website.

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 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.

Data protection policy

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.