Wen, Rui Quantification of [electronic resource] - Plant disease Apr 2020 - 1188-1194 p. digital Publication Type: Journal Article ISSN: 0191-2917 Standard No.: 10.1094/PDIS-03-19-0584-RE doi Subjects--Topical Terms: CanadaPlant DiseasesPlasmodiophoridaSoilSpores, Protozoan