Scott Tolar said: University of Florida Nematode Assay LabBuilding 78 Mowry Rd.Gainsville‎ FL‎ 32611nemalab@ifas.ufl.edu(352) 392-1994$25 a sample and results usually come back in 3-4 days, very reliable
David McCallum said: The lab that is nearest you that is also reputable.