Evaluation of paddy genotypes against brown planthopper, Nilaparvata lugens (Stal.) and whitebacked planthopper, Sogotella furcifera (Horvath) under field condition

Abstract

Screening of paddy genotypes against Brown planthopper (BPH) and Whitebacked planthopper (WBPH) under field condition was undertaken at ARS. About hundred genotypes were screened under field condition, in which 26 genotypes showed resistance reaction to planthoppers with a damage score of 3 and 5 and remaining found to be susceptible and highly susceptible to the planthoppers with a damage score 7 and 9. It was visualized that the planthoppers were settled at the base of the crop genotypes. In general the population of planthopper was recorded on the resistant and moderately resistant varieties less compared to susceptible varieties.