## 5 Conclusions  
In this study, we assessed the attractiveness to _B. dorsalis_ of the volatiles from orange juice. A GC-MS was employed to analyze the chemical components of these volatiles. Behavioral tests were performed to determine the most crucial behavior-modifying compound among the identified volatile components. We specifically examined the crucial chemical, D-Limonene, to assess its attractiveness to _B. dorsalis_ over different ages and time periods, as well as its impact on female oviposition behavior. Olfactory receptor co-receptor mutants were utilized to identify the candidate receptors that respond to D-Limonene. This study deepened our understanding of the role of D-Limonene in locating the host attractant source of _B. dorsalis_ and laid the foundation for the future application of D-Limonene in environmentally friendly pest control technologies. Conceptualization, L.L. and W.L. ; data curation; L.L., funding acquisition, G.W., W.L. and L.Y. ; investigation, L.L., J.Y. and C.L. ; project administration, G.W. and W.L. ; supervision, G.W. and W.L. ; writing--original draft, L.L. ; and writing--review and editing, L.L., H.Z. and J.Z. All authors have read and agreed to the published version of the manuscript. This work was supported by the Shenzhen Science and Technology Program (Grant No. KQTD20180411143628272) and special funds from the Science, Technology, Innovation, and Industrial Development of Shenzhen Dapeng New District (Grant No. PT202101-02) and Funds from Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests (22-035-31-22 KF08). Not applicable. The data are included in the main text and Appendixes A-D. The authors declare no conflicts of interest. * (15) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Identification of a new blend of apple volatiles attractive to the apple maggot, _Rhagoletis pomonella. J. Chem. Ecol._**1999**, _25_, 1221-1232. [CrossRef]
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