1a verscheidene korte gangetjes vanuit de hoofdnerf: Ophiomyia beckeri
1b gangmijn, onafhankelijk van de hoofdnerf => 2
1c gallen etc => 100
2a verpopping in de mijn, in een, gewoonlijk onderzijdige, poppenwieg: Chromatomyia cf. syngenesiae
2b verpopping extern: Liriomyza trifolii
100a Nematoda => 101
100b Acari => 102
100c Coleoptera => 103
100e Diptera => 104
100f Hemiptera => 105
100d Hymenoptera => 106
100g roesten => 107
100h brandschimmels => 108
100i echte en valse meeldauwen => 109
100j andere veroorzakers => 110
106 - Hymenoptera
106a Cynipidae: Timaspis urospermi
107 - roesten
107a Pucciniaceae: Puccinia urospermi
109 - echte en valse meeldauwen
109a Erysiphaceae: Golovinomyces cichoracearum
1a several short galleries, starting from the midrib: Ophiomyia beckeri
1b gallery, independent of the leaf venation => 2
1c galls, etc => 100
2a puparium formed in the mine, in a, usually lower-surfsce, pupal chamber: Chromatomyia cf. syngenesiae
2b pupation external: Liriomyza trifolii
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
106 - Hymenoptera
106a Cynipidae: Timaspis urospermi
107 - rust fungi
107a Pucciniaceae: Puccinia urospermi
109 - powdery and downy mildews
109a Erysiphaceae: Golovinomyces cichoracearum
18/04/2017