Analysis of the attractant effect and main attractant compounds of Broussonetia papyrifera on females of Zeugodacus tau
[Aim]Zeugodacus tau has been listed as a quarantine pest in many countries.The females feed on the polythalamic fruits of Broussonetia papyrifera.The aims of the study were to determine the attractant effect and main attractant compounds of B.papyrifera fruit to Z.tau females.[Method]Trapping bioassays were used to determine the attractant effect of B.papyrifera fruits on Z.tau females.GC-MS(gas chromatography-mass spectrography)and Y-tube olfactometry were used to identify and determine the compounds in B.papyrifera fruits that induce behavioral responses in Z.tau females.[Result]B.papyrifera fruit could attract Z.tau females effectively,and the attractive rate was up to 81.11%.Twenty-nine compounds were identified and isolated from B.papyrifera fruit odor.Among these,2-pentyl-furan(0.500 mg·mL-1),(E)-2-hexenal(0.050 mg·mL-1),and heptanal(0.050 mg·mL-1)were effective at inducing attractive behavioral responses in Z.tau females.[Conclusion]B.papyrifera has the potential to be used as a female attractant for controlling Z.tau females.2-Pentyl-furan,(E)-2-hexenal,and heptanal may be the main compo-nents attracting female flies.
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