Plant Parasites of Europe

leafminers, galls and fungi

genus Ajuga

organ parasitic mode stage note taxonomic group parasite
flower predator Aeolothripidae Aeolothrips collaris
flower predator Aeolothripidae Aeolothrips intermedius
flower hidden Aeolothripidae Melanthrips pallidior
leaf vagrant Thripidae Neohydatothrips abnormis
root vagrant Tenebrionidae Opatrum sabulosum
leaf down Erysiphaceae Golovinomyces biocellatus
leaf leaf spot Mycosphaerellaceae Septoria ajugae
leaf leaf spot Phyllostictaceae Phyllosticta ajugae
leaf leaf spot Didymellaceae Ascochyta lamiorum
leaf vagrant Lygaeidae Ortholomus punctipennis
leaf vagrant Berytidae Gampsocoris culicinus
leaf vagrant Tingidae Tingis ciliaris
seeds vagrant Coreidae Coriomeris scabricornis
leaf vagrant Pentatomidae Stagonomus bipunctatus
leaf vagrant Berytidae Gampsocoris punctipes
leaf vagrant Tingidae Tingis ajugarum
leaf vagrant Cicadellidae Eupteryx vittata
leaf vagrant Tingidae Tingis caucasica
leaf vagrant Tingidae Tingis reticulata
leaf scale Aleyrodidae Bemisia tabaci
flower hidden Thripidae Taeniothrips picipes
leaf vagrant Chrysomelidae Cassida viridis
root vagrant Chrysomelidae Phyllobrotica elegans
leaf vagrant Tenthredinidae Athalia cordata
leaf vagrant Tenthredinidae Athalia circularis
leaf hidden Tortricidae Olindia schumacherana
leaf miner younger larva Tortricidae Cnephasia asseclana
leaf hidden older larva Tortricidae Cnephasia asseclana
leaf miner younger larva Tortricidae Cnephasia stephensiana
leaf hidden older larva Tortricidae Cnephasia stephensiana
stem borer Tortricidae Endothenia ustulana
leaf leaf spot Capnodiales Ramularia ajugae
leaf miner Agromyzidae Chromatomyia horticola
leaf vagrant summer generation Aphididae Aphis frangulae
systemic gall Eriophyidae Aceria ajugae
flower gall Cecidomyiidae Asphondylia massalongoi
leaf down Erysiphales Neoërysiphe galeopsidis
leaf gall Aphididae Myzus ajugae
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Agromyzidae Liriomyza strigata
leaf miner doubtful Agromyzidae Phytomyza abdita
leaf miner Agromyzidae Amauromyza labiatarum
leaf miner Agromyzidae Amauromyza lamii
leaf miner Agromyzidae Amauromyza morionella
leaf miner Chrysomelidae Apteropeda globosa
leaf miner Chrysomelidae Apteropeda orbiculata
leaf miner Chrysomelidae Apteropeda splendida
leaf miner Curculionidae Orthochaetes setiger
leaf miner doubtful Tephritidae Trypeta zoe
leaf pustule Chytridiales Synchytrium aureum
leaf pustule aecia Pucciniales Puccinia stipina
leaf pustule telia Pucciniales Puccinia annularis
leaf pustule telia Pucciniales Puccinia teucrii
leaf vagrant Aphididae Aphis gossypii


the part of the plant that most conspicuously is hit by the parasite

all buds: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
fruit: also seed
root: also root stock, runners
root collar: also the lowest part of the stem
stem: also culm, the lower part of the peduncle, in grasses also leaf sheath
systemic: the entire above-ground plant.


borer: larva living internally, almost no outwards signs
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tussue
gall: swelling and/or malformation
grazer: feeding at the outside of the plant
leaf spot: discoloured, often ± necrotic, generally not galled, sign of a fungus infection
miner-borer: larve initially makes a mine, lives as a borer later
pustule: plug of fungal tissue, generally brown-black and < 2 mm
stripe: longitudinal line of fungal tissue in a grass leaf
vagrant: (aphids, mites) living freely on the plant, at higher densitiy causing malformations.


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The host plant spectre of a parasite is rarely known exhaustively; this applies in particular at the species level. It is advisable therefore to check at least also the list of all parasites of this genus.


Last modified 16.ix.2023