Taxis responses of oriental fruit fly (Bactrocera dorsalis) to the odors of two types of mango.

The taxis responses of oriental fruit fly,Bactrocera dorsalis to the odors of ripe and unripe fruit of Martssu and Sannian mango were examined.The results showed the adults tested preferred to two ripe mango.Moreover,in two types ripe mango,the fruit fly preferred to ripe Martssu mango(P0.01).Gas chromatographic-mass spectrometric(GC-MS) analysis of volatiles compounds from two stages and two types of mango revealed that the contents of eight volatile compounds(2-butyl alcohol,ethyl acetate,1-Octanol,2-butenoic acid ethyl ester,butyl acetate,а-pinene,3-hydroxy-2-butanone,а-caryophyllene)increased two times in average at two ripe mango.The eight volatile compounds were possible reasons for the fruit fly preferring ripe mango.The contents of each alcohols,each esters and а-pinene,β-pinene,3-hydroxy-2-butanone increased in the volatile compounds of ripe Martssu mango,these compounds perhaps played an important role in the oriental fruit fly preferring ripe Martssu mango.