Oidium hortensiae Jørst.

Selection criteria. Country: any country. Associated organism: Hydrangea macrophylla (distribution map)

Number of records. 4. Date information. 1 November 1968 (Nov). Countries. Chile, Ukraine. Substratum. leaf. Literature. Marchenko (1979) page(s) 361; Mujica (1961) page(s) 5; Oehrens (1961) page(s) 59.