Plant Parasites of Europe

leafminers, galls and fungi

gallers on Caragana

Dichotomous table for gallers on Caragana arborescens

by Hans Roskam

1a On parts above ground => 2

1b Roots with laterally or terminally inserted branched nodules, oval, cylindrical or terminally fork-like, finger-shaped to coralloid. Rhizobium leguminosarum

2a Minor malformations of leaves. – Unidentified aphid

2b Main stems with ± spindle- or club-shaped swellings bearing mistletoe. Viscum album

= The gall mite Aceria arceosae, hidden in leaf axils, causes withering of buds.

= The mildew Erysiphe palczewskii has been reported from pea shrub

= The rare gall midge Dasineura sibirica may cause a pest

Last modified 28.vi.2020