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An Additional Phytosanitary Cold Treatment Against Ceratitis capitata (Diptera: Tephritidae) in 'Oroblanco' Citrus
1The "Israel Cohen" Institute for Biological Control, Plants Production and Marketing Board, Citrus Division, P.O. Box 235, Yehud-Monosson 5610102, Israel (yoav@jaffa.co.il; roy.kaspi@gmail.com).
Abstract:
For 'Oroblanco' ('Sweetie'), the sweet seedless pummelo-grapefruit hybrid, when exported from Israel to Japan, the standard cold treatment against Ceratitis capitata (Wied.) (Diptera: Tephritidae) is conducted at ≤ 1.5 °C, for 16 d. In recent years, the transportation means of exported citrus was changed from reefer vessels to individual refrigerated containers, where the fruit bulk is relatively small and may be exposed to temperature fluctuations and to the risk of chilling injuries. To reduce this risk, Israel proposed to Japan to increase the treatment temperature and extend its duration to 2.2 °C and 18 d, respectively. This study shows that the proposed treatment effectively kills the third instar larva of C. capitata, in Oroblanco.
