Elimination of Callosobruchus maculatus (f.), storage pests of organic chickpeas, in Southeast region of Turkey by using high presurized carbon dioxide

In the present study, the optimum treatment times which is required for 100 % elimination of all life stages of the storage pest, bean beetle, Callosobruchus maculatus (F) hosting on Turkish origin chickpeas by using 99,90 % purity carbon dioxide under different pressures and in different gas loading and unloading durations were investigated.100 % mortality was provided against following life stages of C. maculatus at 22 °C- 26°C temperatures under following pressure and durations; (1) under 15 bars pressure, within 360 minutes in pupae, larvae and eggs, within 1 minute in adults , (2) under 20 bars pressure, within 50 minutes in eggs, within 120 minutes in larvae, within 165 minutes in pupae and within 1 minute in adults, (3) under 25 bars pressure, within 30 minutes in eggs, within 50 minutes in larvae, within 60 minutes in pupae and within 1 minute in adults, (4) under 30 bars pressure, within 30 minutes in eggs and larvae, within 40 minutes in pupae and within 1 minute in adults.It was determined that there is no correlation between the carbon dioxide loading and unloading durations and the mortality.Key words: Callosobruchus maculatus, organic chickpeas, carbon dioxide, high pressure.