Plant Parasites of Europe

leafminers, galls and fungi

Mentha spicata

spear mint

synonym: Mentha viridis

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Capnodiales Ramularia lamii
root vagrant Chrysomelidae Longitarsus ferrugineus
flower borer Nitidulidae Thymogethes otini
flower borer Nitidulidae Thymogethes egenus
root vagrant Chrysomelidae Longitarsus bertii
leaf vagrant Chrysomelidae Chrysolina grossa
leaf vagrant Chrysomelidae Cassida viridis
root vagrant Chrysomelidae Longitarsus lycopi
leaf hidden Crambidae Pyrausta aurata
root collar borer Tortricidae Endothenia quadrimaculana
leaf vagrant Eriophyidae Aculops niloticus
leaf scale Aleyrodidae Trialeurodes vaporariorum
root borer Sesiidae Chamaesphecia alysoniformis
fruit gall Cecidomyiidae Asphondylia menthae
flower down Peronosporales Peronospora stigmaticola
leaf down Erysiphales Golovinomyces monardae
leaf gall Eriophyidae Aceria mentharia
leaf miner Agromyzidae Phytomyza petoei
leaf pustule aecia uredinia telia Pucciniales Puccinia menthae
leaf vagrant Aphididae Ovatus mentharius
leaf gall Aphididae Aphis affinis


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 23.vii.2022