Author(s): K. JANA AND G. K. MALLICK

Abstract: Survey for predominance of weedy rice in different rice ecosystem in Western zone of West Bengal was conducted by Rice Research Station (Govt. of West Bengal), Bankura, West Bengal, India during kharif season of 2010 and 2011. Survey works were done in the farmers\' fields of Purulia, Bankura and Paschim Medinipur districts under red and laterite zone of West Bengal, India. Weedy rice species were noticed in the framers\' fields during survey work, but population was low. It was observed that population of weedy rice was more in Bankura and Purulia districts as compared to Paschim Medinipur district. The yield loss of rice due to weedy rice infestation was negligible in Western zone of West Bengal. Removing weedy rice\'s panicles before they set seeds after rice planting when weedy rice is taller than the rice crop is most important control measure.

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