Investigating the impact of deploying commercial Bombus terrestris for crop pollination on pathogen dynamics in wild bumble bees Penelope R Whitehorn, Matthew C Tinsley, Mark J F Brown and Dave Goulson Biological & Environmental Sciences, University of Stirling, Stirling, FK9 4LA, UK. School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK. Current addres...