Plant Parasites of Europe

leafminers, galls and fungi

gallers on Chelidonium

Dichotomous table for gallers on Chelidonium majus

by Hans Roskam

1a On parts above ground => 2

1b Roots with spindle-shaped to nodular swellings. Meloidogyne hapla

2a Leaf blades weakly wrinkled, margins slightly bent. Acyrthosiphon chelidonii

2b Weakly wrinkled and ± discoloured leaves caused by aphids. Aphis fabae

2b Wrinkled leaves. Malformations caused by froth-covered nymphs of Philaenus spumarius

2b Flowers distinctly swollen, unopened; many yellow, non-jumping larvae inside. Jaapiella chelidonii

2b Pods irregularly swollen. Containing several yellowish, non-jumping larvae.
Unidentified gall midge

Last modified 1.vii.2020