Impacts of transgenic rice with Bar gene and glufosinate on feeding and oviposition behavior of brown planthopper, Nilaparvata lugens (Stål).

[Objective]The impacts of herbicide resistant transgenic rice and glufosinate on feeding and oviposition behavior of brown planthopper Nilaparvata lugens (St l)(BPH)were studied to provide scientific references for ecological safety evaluation of transgenic rice with Bar gene.[Method]With the BPH as research object, the genetically modified herbicide-tolerant (GMHT)rice Bar68-1, non-GM rice D68 and TN1 were treated by 0.5% glufosinate to compare their feeding amount, selectivity of feeding and oviposition of BPH on each treatment.[Result]There were no significant differences between Bar68-1 and D68 on feeding selectivity, honeydew excreted and oviposition preference of BPH.Bar68-1 and TN1 shared similarity in honeydew excreted and feeding amount, while the viposition selection ratio of D68 was lower than that of TN1.There was no significant difference between the treatments of glufosinate and water control on selectivity and honeydew excreted of BPH feeding except for oviposition preference of BPH.It was lower in number of egg mass, total number of eggs and oviposition selection ratio for treatment of glufosinate than those of water.[Conclusion]Herbicide-tolerant transgenic rice Bar68-1 has no marked effect on feeding and oviposition behavior of BPH.