Incidence of lesser bandicoot rat, Bandicota bengalensis (gray) in rice ecosystem in the upper brahmaputra valley
2013
Gogoi, P.P. | Borah, R.K.
An investigation was carried out in the rice fields at Regional Agricultural Research Station (RARS), Titabor and Instructional Cum Research (ICR) farm, Assam Agricultural University, Jorhat during Boro and Sali season in 2009_2010 and 2010_11, respectively, with a view to study the seasonal incidence, and damage by Bandicota bengalensis (Gray) in rice ecosystem. The seasonal incidence and damage of B. bengalensis were recorded at different crop growth stages viz., tillering, panicle initiation, flowering, dough and ripening stages. In both Boro and Sali season, highest LBC (28.17 and 35.67 numbers/ha) and trap index (7.12 and 9.06) were recorded in ripening stage and minimum LBC (3.44 and 5.28 numbers/ha and trap index (1.57 and 2.67) were recorded in the tillering stage. Similarly, the B. bengalensis damage in terms of per cent cut tillers increased with the advancement of crop growth. Maximum damage (4.14 and 5.78% cut tiller) was recorded in ripening stage of both Boro and Sali rice, respectively whereas minimum damage (1.62 and 1.98% cut tiller) was recorded in the tillering stage.
显示更多 [+] 显示较少 [-]