Braya

fam. Brassicaceae

1a larva with recognisable head; mine full depth => 2

1b larva a maggot; mine largely upper- or lower-surface: Scaptomyza flava

1c galls, etc => 100

2a mine small; older larvae live free at the underside of the leaf: Plutella xylostella

2b mine larger; larvae mine lifelong => 3

3a larva without feet: Ceutorhynchus minutus

3b larva with thoracic feet: Phyllotreta nemorum

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

109 – powdery and downy mildews

109a Erysiphaceae: Podosphaera drabae

110 – other causers

110a Fungi, Albuginaceae: Albugo candida

110b Fungi, Plasmodiophoraceae: Plasmodiophora brassicae

20/10/2016