Advancement in Studies on the Virulent of Brown Planthopper

Brown planthopper (Nilaparvata lugens Stål, Homoptera: Delphacidae) is economically important pest on rice that feed directly or serve as vectors of pathogenic microorganisms and viruses to crops, resulting in significant damage and yield losses for farmers. In recent decades, brown planthopper has become notorious due to the emergence of new, virulent populations that can overcome host resistance. Thus, it is important to study virulent variation of the brown planthopper for the breeding and applying of resistant rice varieties. In this study, I review that the virulent population of brown planthopper distributed in rice fields and that the other content included the method of identification, the analysis of genetic basis, molecular boilogy and the relation of virulence with symbionts.