Naslov
The behaviour of codling moth (Lepidoptera: Tortricidae) in the Croatian apple orchards

Autori
Pajač, Ivana ; Barić, Božena

Izvornik
IOBC/WPRS bulletin (1027-3115) 74 (2012); 79-82

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
IPM; Cydia pomonella; development changes; population increase; Croatia

Sažetak
The codling moth, Cydia pomonella (L.), is the most important pest in apple production in Croatia and abroad. The pest is very adaptable to different climatic conditions and is known for the development of resistance to several chemical groups of insecticides. Because of these reasons, the populations of codling moth are differentiated in many ecotypes of various biological and physiological development requirements. Following the dynamics and abundance of codling moth butterflies in the past ten years in Croatia the differences in the behaviour of this pest were observed. In the past ten years the appearance and the flight of codling moth butterflies have been monitored by using pheromone traps (Csalomon) always placed in the same position and observed every two days. In this paper data from the 2000, 2008 and 2009 were analyzed. The research results showed earlier appearance of butterflies in the vegetation season (in the 2000 butterflies began appearing in late April, while in 2008 and 2009 they appeared in mid-April). Furthermore, the flight of butterflies in the vegetation seasons in 2008 and 2009 lasted several days more than in 2000. In the last two years, the total number of caught butterflies has increased (2000 – 165 specimens, 2008 – 326 specimens and 2009 – 451 specimens) as well as the maximum daily number of caught butterflies (2000 – 14 specimens, 2008 and 2009 – 33 specimens). The average number of caught butterflies in 2000 was 4.46 specimens, in 2008 – 7.09 specimens and in 2009 – 10.7 specimens. The possible causes for these modifications could be the climate changes that allow better overwintering of pests, longer period of development in the vegetation season or possible modifications in the genetic structure of treated and untreated codling moth specimens evidenced by recent genetic studies.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Poljoprivreda (agronomija)

Napomena
Izloženi rad je dio rezultata doktorskog rada Ivane Pajač, dipl. ing.

POVEZANOST RADA