Electroantennogram and behavioral responses of Callosobruchus chinensis (Coleoptera： Bruchuidae) adults to volatiles from mung bean (Vigna radiata) pods
WANG Hong-Min1， YANG Meng-Meng2， ZHANG Yao-Wen3， ZHANG Xian-Hong2，*
（1. College of Economics and Management， Shanxi Agricultural University， Taigu， Shanxi 030801， China； 2. College of Agriculture， Shanxi Agricultural University， Taigu， Shanxi 030801， China； 3. Crop Research Institute of Shanxi Academy of Agricultural Sciences， Taiyuan 030000， China)
Abstract 【Aim】 This study aims to investigate the plant volatiles attracting Callosobruchus chinensis. 【Methods】 The electroantennogram and behavioral responses of C. chinensis adults to volatiles from mung bean (Vigna radiata) pods were tested by using electroantennographic (EAG) detector and Y-tube olfactometer， respectively. 【Results】 The EAG bioassay results showed that the respective EAG values of mated female adults of C. chinensis to 23 tested volatiles from V. radiata pods were different， among which the EAG values to benzaldehyde， 2-hexenal， caproaldehyde， octanal and salicylaldehyde were relatively high， with the maximum value (20.68) to 2-hexenal. EAG values showed that the antennal response strengthened with the increasing of concentration of the test componds， but the EAG values had no significant difference between mated and unmated adults. The results of behavioral response tests showed that the mated male and female adults of C. chinensis showed significantly positive taxis to benzaldehyde and 2-hexenal and significantly negative taxis to caproaldehyde， whereas showed no significant taxis to octanal and salicylaldehyde when the concentrations of these five compounds were 100 μg/μL. 【Conclusion】 Among volatiles from V. radiata pods， benzaldehyde and 2-hexenal may be the main attractants for C. chinensis.
WANG Hong-Min, Yang-Meng-Meng, Zhang-Yao-Wen et al. Electroantennogram and behavioral responses of Callosobruchus chinensis (Coleoptera： Bruchuidae) adults to volatiles from mung bean (Vigna radiata) pods[J]. ACTA ENTOMOLOGICA SINICA, 2017, 60(2): 148-154.