Origanum, marjoram

Incl. Majorana.

1a fleck mine => 2

1b corridor and/or blotch => 3

1c galls, etc => 100

2a brownish black sheath case: Coleophora albitarsella

2b composite leaf case: Coleophora pennella

3a corridor at first, later widenend into a full depth primary blotch; the larvae may move, makes then only blotches; larva with thoracic feet and chitinised head: Stephensia brunnichella

3b upper- or lower-surface corridor and/or secondary blotch; larva a maggot => 4

4aa corridor, never forming a secondary blotch: Chromatomyia horticola

4b a secondary blotch, usually in the leaf tip: Phytomyza origani

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

102 – Acari

102a Eriophyidae: Aceria labiatiflorae; Aculops hellenicus; Epitrimerus jaceae

103 – Coleoptera

103a Apionidae: Squamapion origani

103b Curculionidae: Thamnurgus kaltenbachii

104 – Diptera

104a Cecidomyiidae: Asphondylia hornigi; Blastomyia origani

105 – Hemiptera

105a Aphididae: Aphis origani

107 – rust fungi

107a Pucciniaceae: Caeoma origani; Puccinia brunellarum-moliniae, menthae, ruebsaameni, stipina

109 – powdery and downy mildews

109a Erysiphaceae: Golovinomyces monardae; Neoërysiphe galeopsidis

29/05/2017