The number and type of pollinators in winter-sown oilseed rape fields (Brassica napus L.) in relation to local plant diversity (in crop and field margin) and landscape characteristics. Pollinators were collected using two methods (pan traps and transects). Local plant diversity was assessed using quadrats in field margins and in cropped area. The presence of hedges was also recorded. Landscape characteristics included the presence of patches of grassland of different biodiversity levels and the amount of grasslands and other semi natural habitat within a 0.5 - 3km radius circular buffer of the collection points. Data were collected over two years (2014-2015). These data were collected as part of Wessex BESS project, funded by the NERC Biodiversity and Ecosystem Service Sustainability research program. This dataset can be used in conjunction with other Wessex BESS WP4 datasets. Full details about this dataset can be found at https://doi.org/10.5285/6128a4f7-d2ac-43c5-b492-af4c654e89b8