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Phytoparasitica
Rafaeli, A., Inst. for Technology and Storage of Agricultural Products, ARO, Volcani Center, Bet Dagan 50250, Israel
Kostukovsky, M., Inst. for Technology and Storage of Agricultural Products, ARO, Volcani Center, Bet Dagan 50250, Israel
Carmeli, D., Kibbutz Samar, Hevel Eilot 8815, Israel
Palm dates suffer from high infestations of sap-beetle (Coleoptera: Nitidulidae) populations. Organically grown dates are particularly subject to high infestations for lack of alternative treatments both during pre- and postharvest, while export requirements of null infestations are in effect. Present methods of postharvest control include treatments using CO2, which are expensive and require several hours. In this report we describe an effective, short-duration and inexpensive method of postharvest heat-treatment using a postharvest heating container (PHHC). Laboratory experiments determined the optimum temperature regime for maximum escape of beetles from the fruit to be 55°C for 2.5 h; this temperature was attained at a rate of 1.8°C/min. Subsequent successful disinfestation of beetles was obtained in the PHHC after a total exposure time of 2.5 h. Sampling dates before and after treatment and quality control tests on cartons ready for export showed that this method compared in efficiency with CO2 treatments but was much more economical.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
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תנאי שימוש
Successful disinfestations of sap-beetle contaminations from organically grown dates using heat treatment: A case study
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Rafaeli, A., Inst. for Technology and Storage of Agricultural Products, ARO, Volcani Center, Bet Dagan 50250, Israel
Kostukovsky, M., Inst. for Technology and Storage of Agricultural Products, ARO, Volcani Center, Bet Dagan 50250, Israel
Carmeli, D., Kibbutz Samar, Hevel Eilot 8815, Israel
Successful disinfestations of sap-beetle contaminations from organically grown dates using heat treatment: A case study
Palm dates suffer from high infestations of sap-beetle (Coleoptera: Nitidulidae) populations. Organically grown dates are particularly subject to high infestations for lack of alternative treatments both during pre- and postharvest, while export requirements of null infestations are in effect. Present methods of postharvest control include treatments using CO2, which are expensive and require several hours. In this report we describe an effective, short-duration and inexpensive method of postharvest heat-treatment using a postharvest heating container (PHHC). Laboratory experiments determined the optimum temperature regime for maximum escape of beetles from the fruit to be 55°C for 2.5 h; this temperature was attained at a rate of 1.8°C/min. Subsequent successful disinfestation of beetles was obtained in the PHHC after a total exposure time of 2.5 h. Sampling dates before and after treatment and quality control tests on cartons ready for export showed that this method compared in efficiency with CO2 treatments but was much more economical.
Scientific Publication
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