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Your Position :Home->Past Journals Catalog->2014年51 No.5

Attractiveness of durian fruit volatiles to Bactrocera dorsalis (Hendel)
Author of the article:MO Ru-Jiang** OUYANG Qian ZHONG Bao-Er WU Wei-Jian***
Author's Workplace:Laboratory of Insect Ecology, South China Agricultural University, Guangzhou 510642, China
Key Words:Bactrocera dorsalis, Durio zibethinus, volatiles, attractant, ethyl-2-methylbutyrate
Abstract:

     [Objectives]  Males of various tephritid fruit fly species are attracted to and feed on some flowers which contain particular chemical compounds, such as methyl eugenol or raspberry ketone. The attractiveness of strong smelling fruits to Bactrocera has never been investigated. [Methods]  The attractiveness of the scent of durian, jackfruit, pineapple and cherimoya to Bactrocera dorsalis (Hendel) were investigated in a carambola orchard. The volatile components of durian flesh were extracted by solid phase microextraction (SPME) and analyzed by gas chromatographic-mass spectrometric (GC-MS). [Results]  Fresh durian flesh was more attractive than the other fruit extracts tested. 22 peaks were isolated, and 20 compounds identified from durian fruit volatiles. The majority of compounds were esters (>90%), the remainder were alcohols (0.50%), aldehydes (0.45%) and sulfur compounds (4.23%). Trap using ethyl-2-methylbutyrate as a lure caught significantly more insects than those using methyl-2-methylbutyrate, propyl propionate, dimethyl sulfide, ethyl octmoate, methyl hexanoate and durian flesh. [Conclusion]  These findings suggest that ethyl-2-methylbutyrate has potential for developing more effective attractants for B. dorsalis management.  

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