Oidium sp.
Selection criteria. Country: any country. Associated organism: Helianthus annuus (distribution map)
Number of records. 5.
Date information. 1951.
Countries. Cuba, Morocco, South Sudan, Venezuela.
Literature. Rieuf (1970) page(s) 187; Tarr (1955) page(s) 55, 65; Urtiaga (1986) page(s) 33.