Increased olive oil yield and quality in Montenegrin cv Zutica by Bactrocera oleae Gmel. (Diptera Tephritidae) control and improved harvest techniques
Lazović, B.; Adakalić, M.; Perović, T.; Hrnčić, S.; Pucci, C.; Terrosi, A.; Spanedda, A.F.
Comptes Rendus de la Réunion 30(9): 301-305
The present inquiry represents the basis for wider research into the qualitative and quantitative characterization of the typical olive oil of Montenegro. In the considered biotope the 65% of plants is composed of cv Žutica. The key insect is B. oleae, which is, in some years, able to nullify quantitatively the entire production because of the olives dropping off the trees. However the entire production is usually harvested and the product is the clear oil, both because of the infestation and elevated temperature and the long storage periods of olive that cause a remarkable increase in degrees of acidity. The work, carried out in 2004, consisted of studying the inolation on weekly samples of healthy olives harvested from the canopy and processed for olive oil extraction after 24-48 hours. This has allowed us to identify that the right moment for harvest is the third week of October. Finally the qualitative Analysiss of the oil drawn from the plant are presented in comparison to the qualitative characteristics of the output usually obtained by Montenegrin olive-growers after different stock periods. The results obtained represent the first and basic stage for the realization of research projects aimed to improve the techniques of production and protection of oil yield.