Erucastrum, dogmustard

fam. Brassicaceae

1a larva a maggot; mine partly or entirely upper- or lower-surface => 2

1b larva with chitinised head; mine full depth => 3

1c galls, etc => 100

2a frass powdery, in dark green “clouds” in corners of the mine, often visibly only after the mine has been opened: Scaptomyza flava

2b frass in black strings: Liriomyza xanthocera

3a larva with prolegs; older larvae live free at the underside of the leaf: Plutella xylostella

3b no prolegs; larvae mine all their life => 4

4a larva with thoracic legs: Phyllotreta nemorum

4b larva without legs: Ceutorhynchus minutus

100a Nematoda => 101

100b Acari => 102

100c Coleoptera => 103

100e Diptera => 104

100f Hemiptera => 105

100d Hymenoptera => 106

100g rust fungi => 107

100h smut fungi => 108

100i powdery and downy mildews => 109

100j other causers => 110

103 – Coleoptera

103a Curculionidae: Ceutorhynchus assimilis, chalibaeus

104 – Diptera

104a Cecidomyiidae: Dasineura napi; Gephyraulus raphanistri

105 – Hemiptera

105a Aphididae: Brevicoryne brassicae

107 – rust fungi

107a Pucciniaceae: Puccinia isiacae

109 – powdery and downy mildews

109a Erysiphaceae: Erysiphe cruciferarum; Leveillula taurica

109b Peronosporaceae: Peronospora erucastri

110 – other causers

110a Fungi, Albuginaceae: Albugo candida

110c Fungi, Plasmodiophoraceae: Plasmodiophora brassicae


pub 30.vii.2016 · mod 18.vii.2017