ABSTRACT

Field experiments were conducted to find out the effect of spacing and variety on the incidence of major insect pests during the aman season. The plant spacing had no influence on the infestation of rice stem borer and gall midge in rice varieties. At maximum tillering stage significantly lowest rice stem borer and gall midge infestation was recorded in Binasail and BRRIdhan32; while the highest infestation was recorded in susceptible TNI by Binadhan-4 and BRRIdhan32, respectively.

Key words: Plant spacing, rice varieties, rice stem borer and gall midge