Plant Parasites of Europe

leafminers, galls and fungi

gallers on genus Antirrhinum

Dichotomous table for gallers on Antirrhinum

(A. orontium see Misopates orontium)

by Hans Roskam

1a On parts above ground => 2

1b On roots or on root collar. Nodular swellings on roots. Galls partially with side roots. Antirrhinum spp.: Meloidogyne hapla

2a On leaves => 3

2b Swelling of stem. A. latifolium, majus: Mesoscyonyx sicardi

2c Capsule slightly swollen and disfigured; a single or several beetle larvae inside. A. majus: Rhinusa antirrhini and/or Rhinusa neta

3a Leaves ± curled and margins deflected; bearing aphids on underside => 4

3b Leaves stunted on shortened shoot tips, pale green, deflected over tip and margins, brittle, appearing slightly thickened; with down of branched conidiophores on underside. A. hispanicum, majus, sempervirens: Peronospora antirrhini

4a Leaf blades strongly curled. Antirrhinum spp.: Aulacorthum solani

4b Leaf blades spoon-like arched, curled, ± discoloured, bearing aphids on underside. A. barrelieri: Myzus persicae

Last modified 17.xi.2023