Prve najdbe in spremljanje nageljnovega zavijača Cacoecimorpha pronubana (Hübner, 1799) (Lepidoptera: Tortricidae) v Sloveniji

   
Stanislav GOMBOC¹, Tina JANKOVIČ²

¹ Biotehniška fakulteta, Oddelek za agronomijo, Inštitut za fitomedicino, SI-1000 Ljubljana, Slovenija
² Biotehniška fakulteta, Oddelek za agronomijo, SI-1000 Ljubljana, Slovenija

Nageljnov zavijač je v Sloveniji karantenska vrsta, uvrščena na listo A1 karantenskih škodljivih organizmov, ki je bila doslej najdena le na uvoženem rastlinskem materialu. V letu 1995 smo prvič odkrili, kot kaže, avtohtono populacijo nageljnovega zavijača v slovenskem Primorju. Od takrat smo vrsto spremljali z naključnimi nočnimi popisi s svetlobnimi vabami, v letu 2000 pa smo opravili prvi monitoring s feromonskimi pastmi na 15 lokacijah. Ugotovili smo, da je vrsta razširjena od obalnega pasu do Kraškega roba, ki predstavlja naravno bariero za njeno nadaljnje širjenje. V tem območju smo metulje evidentirali v času od konca aprila do oktobra. Podatki kažejo na neenakomerno pojavljanje vrste v območju in na pretenzijo vrste za širjenje v zanjo ustreznejša okolja. Največ osebkov smo evidentirali v bližini ruderalnih zemljišč, ob gozdnem robu in makiji. Škode, ki bi jo povzročila ta polifagna vrsta na gojenih rastlinah, pri nas še nismo zabeležili.

ABSTRACT

First Finding and Monitoring of Cacoecimorpha pronubana (Hübner, 1799) (Lepidoptera: Tortricidae) in the Open in Slovenia

In Slovenia carnation tortrix is placed on the A1 list of Quarantine pests. Until now it was found only on the imported plant material by the border inspection. In the year 1995 carnation totrix was found for the first time in the open at the sea side in Slovensko Primorje. This seems to be indigenous population in Slovenia, which was not recorded before. Since then we observed the species with the random light trapping and in the year 2000 we carried out the sex pheromone traps monitoring on 15 locations in this area. As data show, the species is spread in the area from Adria coast to the Karstic edge, which is the natural barrier for further spreading of this species inside the country. Adults were found from end of April to October.  The data show irregular appearance of species in this area and its pretension to suitable habitats. The most adults were found near the ruderal area, at the edge of a forest and maccia. In spite of the polyphagous nature of this species, no economic damage has been confirmed in Slovenia jet.