Differential Reaction of Selected Rice Cultivars to Brown Planthopper, Nilaparvata lugens Stal_e (Homoptera: Delphacidae)

Laboratory studies were conducted to confirm the level of resistance of some selected cultivars against brown plant hopper, Nilaparvata lugnes Stal. (Homoptera: Delphacidae). The studies revealed that three wild species; Oryza officinalis Wall., o. latifolia J.S. Presl.and o. minuta Desv. are highly resistant to BPH (score 1), and recorded significantly least area and quantity of honey dew excreted. TN AUBPHR 831305 showed a good level of resistance, and it was on par with resistant check PTB 33. IR 64 and IR 36 showed moderate levels of resistance whereas IR 50 was susceptible.