Plant Parasites of Europe

leafminers, galls and fungi

Entyloma polysporum

Entyloma polysporum (Peck) Farlow, 1883

on Ambrosia

gall

Sori as roundish leaf spots, initially light yellowish brown, finally dark green or necrotic. Inside hyaline, rotund, smooth spores, 10-15 µm.

hostplants

Asteraceae, monophagous

Ambrosia artemisiifolia.

references

Vánky (1994a).

Last modified 23.vii.2018