Preference and selectivity of two natural enemy insects to 5 flowering Chinese medicinal materials
In order to investigate the selection preferences of two natural enemies of Harmonia axyridis and Eupeodes corollae on five Chinese herbal medicines:Nepeta cataria,Mentha haplocalyx,Polygonatum odoratum,Polygonatum sibiricum,and Salvia miltiorrhiza in flowering period,this study observed the selection of these two natural enemies on different pot Chinese herbal medicines and their isolated flowers.Potted plant experiment results showed that the traditional Chinese medicinal materials H.axyridis adult on the largest number of P.sibiricum potted plants,after 30 min and 60 min plant preference rate reached 37.00%and 36.00%respectively,significantly higher than other Chinese herbal medicine plant.The number of adult H.axyridis in the flowering stage of S.miltiorrhiza was the highest,plant preference rate reaching 37.00%and 36.00%in 30 min and 60 min,respectively,which was significantly higher than that in other Chinese medicinal plants.The results of in vitro flower taxis test showed that adult H.axyridis had the highest selection rate for P.sibiricum flowers,and adult E.corollae had the highest selection rate for S.miltiorrhiza flowers.These two kinds of Chinese herbs showed obvious attractant effect on the two natural enemy insect adults,while M.haplocalyx and N.cataria flowers showed a repellent effect on the two natural enemy insect adults.Therefore,P.sibiricum and S.miltiorrhiza should be the Chinese medicinal materials to attract H.axyridis and E.corollae adults,and M.haplocalyx and N.cataria should be the Chinese medicinal materials to avoid H.axyridis and E.corollae adults.It is estimated that it may be related to the volatiles released by different Chinese medicinal plants at flowering stage,and further study is needed.
Harmonia axyridisEupeodes corollaetraditional chinese medicinal materialstendency behavior
NETL
NSTL
万方数据
