Seasonal abundance of rice sucking pests under different rice ecosystems in Cauvery command areas of Karnataka

Abstract

An experiment was carried out under field conditions at the Zonal Agricultural Research Station (ZARS), Vishveshvaraiah Canal(V. C) Farm, Mandya district of Karnatakato study the population status of major sucking insect pests of rice in different methods of planting. Incidence of BPH was started from last of July and its mean population was observed in mechanical transplanted rice of 4.40 followed by manual (3.87) drill sown (2.16) and aerobic method (1.06) nymphs and adults per hill respectively. Whereas WBPH was recorded at 30 DAT and incidence remained up to the 90 DAT and Ear head bug incidence started with panicle initiation stage and continued till dough stage of the crop, and its mean population was non-significant differences among the different methods of planting.