Plant Parasites of Europe

leafminers, galls and fungi

Jaapiella knautiae

Jaapiella knautiae Rübsaamen, 1917

on Knautia

Jaapiella knautiae: gall on Knautia arvensis

Knautia arvensis, Belgium, prov. Namur, Vaucelles, Carrière de la Montagne © Sébastien Carbonnelle

Jaapiella knautiae: gall on Knautia arvensis

gall, folded open


The youngest leaves at the tip of a shoot form an enlarged, dense, strongly hairy bud. Larvae white or pale yellowish.


Caprifoliaceae, nonophagous

Knautia arvensis, dipsacifolia, drymeia, transalpina.


Buhr (1964b), Redfern & Shirley (2011a), Rübsaamen (1917a), Skuhravá (2006a), Skuhravá & Skuhravý (1997a, 1999a,b, 2003a, 2006a, 2010a, 2012a), Skuhravá Skuhravý & Hellrigl (2002a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a).

Last modified 10.v.2018