Pedro Willem Crous (born 2 November 1963) is a South African mycologist and plant pathologist.
Together with Jozef Geml he is editor-in-chief of the mycological journal Persoonia,[5] managing editor of Studies in Mycology[6] and IMA Fungus,[7] editor-in-chief of Fungal Systematics and Evolution (FUSE), and associate editor of Australasian Plant Pathology,[8] Sydowia, Fungal Planet,[9] CBS Biodiversity Series, and CBS Laboratory Manual Series.
[14] In 2004 he launched MycoBank,[15] a freely available online database to capture all fungal novelties described by the research community, which has since become mandatory in the International Code of Nomenclature for algae, fungi, and plants from 2013 onwards.
He has published more than 600 papers,[19] authored or edited more than 30 books, and monographed several genera of major economic importance to global food and fibre security.
His research focuses on the systematics of plant pathogenic fungi causing disease of economically important crops, also relevant to quarantine and trade in food and fibre.