entity method_of Hoja blanca disease Severity HojaBlancaSev Hoja blanca The type and severity of hoja blanca disease symptoms caused by rice hoja blanca virus (RHBV) causing hoja blanca. Symptoms: cream colored to yellow spots, elongating and coalescing fo form longitudinal yellowish green to pale green striations. Streaks may coalesce to cover the whole leaf. Brown and sterile glumes with typical parrot beak shape of deformation variable_of acronym attribute scale_of