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The leopard moth Zeuzera pyrina (Lepidoptera Cossidae)

Victor Sarto Monteys

Plant Health Service. Generalitat of Catalonia./ Institute of Environmental Science and Technology (ICTA) at the Autonomous University of Barcelona

The leopard moth, Zeuzera pyrina, (Lepidoptera Cossidae), a former Palaearctic species but long ago introduced in North America, is one of the most important pests of apple and pear orchards in the Mediterranean. However, depending on the areas, it can also be a key pest of other tree plantations like hazelnut, olive or walnut. Not to mention it attacks a huge variety of other shrubs and trees. Damage to trees and its seriousness will vary according to the age of the plantations, younger the trees the worse.

In Catalonia, the leopard moth is a key pest, together with the codling moth, Cydia pomonella, of apple and pear plantations in the regions of Lleida and Girona whereas in Tarragona it is the key pest of hazelnut. At present Catalonia holds 32.85% of apple plantations in Spain (10,722 ha), 37,29% of pear (8,543 ha) and 90.56% of hazelnut (15,700 ha). Such figures illustrate the commercial importance of these three fruit trees in Catalonia and Spain.

The moths do not feed and live just about 10 days. Females lay about 1,000 eggs in clusters mostly on cracks on the bark of trees. Hatching takes places after 7 to 23 days. The larvae at first cluster in a silken cocoon from which they will disperse to bore into the tips of branches and shoots, then moving downwards along them while eating their central core and making a gallery. As they grow in size can migrate to lower and bigger branches, eventually reaching the main trunk of the tree. In the final stages the entry holes of the larvae are quite visible (on trunks and big branches) since masses of sawdust and frass protrude from them along with sap outflows. Finally they pupate close to the bark. In Catalonia the full life cycle takes generally one year.

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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.