Journal Of Applied Horticulture ISSN: 0972-1045


ThiNghiem Le, ChingChang Shiesh, HueyLing Lin and Elsa Lee

Graduate School of Horticultural Department, Chung Hsing University, 250 Kuo Kang Road, Taichung, Taiwan. Horticultural Department, Chung Hsing University. 250 Kuo Kang Road, Taichung, Taiwan.

Key words: Vapour heat, oriental fruit fly, quarantine pests, 'Tuu Shien' mango

Journal of Applied Horticulture, 2010, volume 12, issue 2, pages 107-112.

Abstract: The objective of the research was to evaluate the efficacy of Vapour heat treatments (VHT) to disinfest the Taiwan native mango variety fruits (Tuu Shien) from the oriental fruit fly (Dacus dorsalis Hendel) and the effect of the treatments on the quality of mango fruits. The three stage treatment of forced air at 30oC for 30 minutes, 30 to 48oC for 60 minutes, and then 48oC forced hot air with saturated humidity over the mango fruit surface until the fruit centre temperature reached 46.5oC and fruit was held for 40 minutes. Survival tests showed that both second and third generation instars were more susceptible to the VHT than eggs and there were no surviving oriental fruit fly after 46.5oC for 40 min. The quality of local mango fruits treated with VHT and stored at ambient temperature (28 ? 3oC) for 6 days was not significantly different from the control.

Journal of Applied Horticulture