Physoderma alfalfae (Patouillard & Lagerheim) Karling, 1950

on Medicago

Physoderma alfalfae: galls on Medicago sativa

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

mod 14.xi.2017