COLD TREATMENT OF ARGENTINEAN MANDARINS AGAINST MEDITERRANEAN FRUIT FLY
The Mediterranean fruit fly (Ceratitis capitata) is an endemic pest in the citrus production areas of Argentina. Postharvest disinfestation with methyl bromide treatments are required to commercialise citrus into the local market in Cuyo and Patagonia, regions where the insect is absent. However, methyl bromide was recognised as an ozone-depleting substance under the Montreal Protocol. Moreover, its use can damage fruit quality. Cold treatments are considered an alternative to methyl bromide for postharvest and quarantine treatment of fresh fruit. However, citrus can be sensitive to chilling injury. Research was carried out to determine the effect of cold treatment on the external and internal quality of Murcott and Ellendale mandarins (Citrus reticulate) produced in the Argentinean northeast region. Fruits were harvested at commercial maturity and stored at two temperatures, 1±0.5°C and 5±0.5°C for 15 days. Following treatments, shelf life conditions were simulated (1 week at 20°C). No chilling injury (CI) was observed on fruits stored at either temperature. Juice percentage and maturity index were not affected by storage treatments. In Murcott mandarins levels of ethanol were increased by cold treat¬ment.
Cocco, M., Meier , G.E. and Vázquez, D.E. (2012). COLD TREATMENT OF ARGENTINEAN MANDARINS AGAINST MEDITERRANEAN FRUIT FLY. Acta Hortic. 934, 413-415
Citrus reticulata, Ceratitis capitata, quarantine treatment, fruit quality, chilling injury