Plant Parasites of Europe

leafminers, galls and fungi

gallers on 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 19.v.2020