Triglochin, arrowgrass

1a mine broad, full depth; larva with chitinised head: Scrobipalpa stangei

1b mine narrow, upper- or lower-surface; larva a maggot => 2

1c galls, etc => 100

2a frass in thread fragments, about as long as the diameter of the corridor, alternating against one of the sides: Liriomyza angulicornis

2b frass not that regular: Liriomyza latipalpis

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

101 – Nematoda

101a Anguinidae: Ditylenchus dipsaci

105 – Hemiptera

105a Aphididae: Rhopalosiphum nymphaeae

110 – other causers

110c Fungi, Plasmodiophoraceae: Plasmodiophora maritima; Tetramyxa triglochinis

pub 9.ix.2015 ยท mod 28.viii.2017