Several members of the lepidopteran family Tortricidae are important pests of apple orchards in Romania with potential to cause significant ecomomic loss to commercial apple growers. The most important species, producing significant damages, both from a quantitative point of view, but especially qualitative, is codling moth (Cydia pomonella L.). The species was originally from Eurasia, but in the last two centuries, once with the expansion of apple cultivation, it has spread all over the world. In Romania, the species is widely distributed in all regions of the country. In recent years many apple growers from western part of the country have reported high infestation levels and damaged produced by codling moth. Although many studies have been carried out regarding the occurrence, the seasonal activity of Cydia pomonella L., the climatic changes of the last period of time have required the carrying out of new research to target the mentioned species. In this context, the present paper intends to establish the date of first appearance, the seasonal activity of these lepidopterans, in the climatic conditions of Alba County, but also the evolution of specimens number according to the age of the trees studied. Seasonal activity of the codling moth, Cydia pomonella L., was conducted by pheromone traps in the apple orchards in Săliștea (Alba: Romania). In our researches, pheromone traps and baits Atra-Pom, produced by the Institute of Chemistry "Raluca Ripan" in Cluj-Napoca, were used. The earliest catches of Cydia pomonella L. in Alba County were recorded in the third decade of April. The mass flight was recorded in the first decade of June for the first generation and in the third decade of July for the second generation. In the area under study, the codling moth develops two generations per year, the first generation being more harmful than the second one. The data obtained are important in order to improve the control programs for the Alba county area.

Cydia pomonella, flight, population, apple orchard, Alba County

biology

Presentation: poster