Physoderma graminis (Büsgen) de Wildeman, 1896

on grasses

gall

Systemic infestation; the yellowish brown discoloured plants grow stiffly vertical, remain retarded and sterile; the leaves have faint narrow pale yellow (eventually reddish brown) stripes. In the tissue resting spores; they are ochraceous, rond, smooth, 24-35 µm.

host plants

Poaceae, oligophagous

Agrostis; Alopecurus; Dactylis; Elytrigia repens; Festuca; Lolium; Phalaris; Poa; Secale cereale; Triticum.

references

Brandenburger (1985a), Buhr (1964b), Klenke & Scholler (2015a), Kruse (2014a), Kruse, Thiel, Brodtbeck ao (2017a), Redfern & Shirley (2011a).

mod 28.iii.2019