Physoderma alfalfae (Patouillard & Lagerheim) Karling, 1950on Medicago

Medicago sativa: drawing by Charles Drechsler from Jones & Drechsler (1920a).
gall
numerous, pea-sized or coralline tumors of the root collar.
hostplants
Fabaceae, monophagous
Medicago falcata, lupulina, rotata, sativa.
synonyms
Urophlyctis alfalfae.
notes
the “crown wart” is an economically important pest.
references
Brandenburger (1985a), Buhr (1964b), Coulianos & Holmåsen (1991a), Ellis & Ellis (1997a), Jones & Drechsler (1920a), Klenke & Scholler (2015a), Redfern & Shirley (2011a), Roskam (2009a).
11/10/2015
Last modified 14.xi.2017

Medicago sativa: drawing by Charles Drechsler from Jones & Drechsler (1920a).
gall
numerous, pea-sized or coralline tumors of the root collar.
hostplants
Fabaceae, monophagous
Medicago falcata, lupulina, rotata, sativa.
synonyms
Urophlyctis alfalfae.
notes
the “crown wart” is an economically important pest.
references
Brandenburger (1985a), Buhr (1964b), Coulianos & Holmåsen (1991a), Ellis & Ellis (1997a), Jones & Drechsler (1920a), Klenke & Scholler (2015a), Redfern & Shirley (2011a), Roskam (2009a).
11/10/2015
Last modified 14.xi.2017