A paper on impact of weeding and plant density regimes on weeds infestation, growth and yield of cowpea was published in 2013, based on research work conducted in 2011. This paper highlighted weed species composition and density in cowpea field in 2011. Repeating the same trial in 2012 provided additional information on weed species composition and density. A review of the two years work, with comprehensive information is available. Can this be communicated as new tresearch? or could this be considered as 'plagerism'.