Regional Agricultural Research Station, Assam Agricultural University, North Lakhimpur-787 001.
A field experiment was carried out during 1993 and 1994 at Regional Agricultural Research Station, North Lakhimpur, Assam in a plot (3 x 5m) where ufra disease was a problem. Altogether ten treatments combining both cultural and chemical methods of control were used. The results revealed that lowest infestation was observed in treatments with two spraying with carbosulfan 40EC @ 0.2 per cent (43.79%) followed by two spraying with triazophos 40EC @ 0.2 per cent (56.73%) as compared to untreated control (80.77%). Significant increase in grain yield was also observed in these treatments.
rice stem nematode, Ditylenchus angustus, ufra, deep water rice, control