This volume contains toxicological monographs that were prepared by the 2013 Joint FAO/WHO Meeting on Pesticide Residues (JMPR), which met in Geneva on 17-26 September 2013. The monographs in this volume summarize the safety data on 14 pesticides that could leave residues in food commodities. These pesticides are benzovindiflupyr, bixafen, chlorfenapyr, cyantraniliprole, diquat, dithianon, fenamidone, fluensulfone, imazapic, imazapyr, isoxaflutole, tolfenpyrad, triflumizole and trinexapac-ethyl. The data summarized in the toxicological monographs served as the basis for the acceptable daily intakes and acute reference doses that were established by the Meeting. This volume and previous volumes of JMPR toxicological evaluations, many of which were published in the FAO Plant Production and Protection Paper series, contain information that is useful to companies that produce pesticides, government regulatory officers, industrial testing laboratories, toxicological laboratories and universities.