Plant Parasites of Europe

leafminers, galls and fungi

Mayetiola joannisi

Mayetiola joannisi Kieffer, 1896

on Poa


The basal part of the stem, above the 2nd or 3rd node, is more or less swollen. Between the leaf sheath and the stem live here a variable number of white larvae, each in an oval shallow depression of the stem. Pupation within the gal, in a puparium.

The larva is described by Ertel (1975a).

Mayetiola joannisi: spatula

spatula (from Kieffer, 1901a)


Poaceae, narrowly monophagous

Poa nemoralis, (pratensis).


Barnes (1958a), Buhr (1965a), Ertel (1975a), Gagné (2010a), Horeman (1990a), Houard (1908a), Kieffer (1896a, 1901a), Redfern & Shirley (2011a), Skuhravá & Skuhravý (2021a: 191), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a).

Last modified 29.ix.2021